r (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 160.928998][ T6200] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 177:freeing already freed block (bit 11); block bitmap corrupt. [ 160.974450][ T6212] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 161.112447][ T5975] EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 161.134155][ T6204] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 177:freeing already freed block (bit 11); block bitmap corrupt. [ 161.151241][ T6215] EXT4-fs error (device loop3): ext4_find_extent:941: inode #18: comm syz.3.34: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 161.188477][ T5965] EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 161.254156][ T6212] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 161.267583][ T6217] EXT4-fs error (device loop0): ext4_find_extent:941: inode #18: comm syz.0.35: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 8, max 84(84), depth 0(0) [ 161.273939][ T6215] EXT4-fs (loop3): pa ffff88806070e0e8: logic 64, phys. 193, len 4 [ 161.294426][ T6215] EXT4-fs error (device loop3): ext4_mb_release_inode_pa:5467: group 0, free 3, pa_free 2 [ 161.329776][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 161.355337][ T6212] EXT4-fs (loop0): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 161.359542][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 161.382459][ T6204] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 161.436298][ T6217] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #18: comm syz.0.35: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 3, max 84(84), depth 0(0) [ 161.440868][ T6219] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 161.459954][ T6215] EXT4-fs error (device loop3): ext4_ext_remove_space:3002: inode #18: comm syz.3.34: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 2, max 84(84), depth 0(0) [ 161.487085][ T6215] EXT4-fs error (device loop3): ext4_find_extent:941: inode #18: comm syz.3.34: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 2, max 84(84), depth 0(0) [ 161.510256][ T6204] EXT4-fs (loop3): This should not happen!! Data will be lost [ 161.510256][ T6204] [ 161.522666][ T6212] EXT4-fs (loop0): This should not happen!! Data will be lost [ 161.522666][ T6212] [ 161.530983][ T6217] EXT4-fs error (device loop0): ext4_find_extent:941: inode #18: comm syz.0.35: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 3, max 84(84), depth 0(0) [ 161.561991][ T6217] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 117 [ 161.565922][ T6221] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 161.575891][ T6215] EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 1 with error 117 [ 161.601335][ T6215] EXT4-fs (loop3): This should not happen!! Data will be lost [ 161.601335][ T6215] [ 161.610727][ T6204] EXT4-fs (loop3): Total free blocks count 0 [ 161.617090][ T6204] EXT4-fs (loop3): Free/Dirty block details [ 161.624318][ T6217] EXT4-fs (loop0): This should not happen!! Data will be lost [ 161.624318][ T6217] [ 161.625508][ T6212] EXT4-fs (loop0): Total free blocks count 0 [ 161.644800][ T6212] EXT4-fs (loop0): Free/Dirty block details [ 161.650946][ T6212] EXT4-fs (loop0): free_blocks=16 [ 161.656004][ T6212] EXT4-fs (loop0): dirty_blocks=0 [ 161.662326][ T6212] EXT4-fs (loop0): Block reservation details [ 161.677464][ T1342] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 161.677961][ T6204] EXT4-fs (loop3): free_blocks=48 [ 161.691473][ T6204] EXT4-fs (loop3): dirty_blocks=0 [ 161.709679][ T1342] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 161.784603][ T6220] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 161.851408][ T6218] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 161.929345][ T5965] EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 161.963132][ T5975] EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 162.011749][ T6230] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 162.051631][ T6233] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 162.148583][ T6231] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 162.199774][ T6241] set_capacity_and_notify: 12 callbacks suppressed [ 162.199794][ T6241] loop2: detected capacity change from 0 to 1024 [ 162.276721][ T6245] loop1: detected capacity change from 0 to 1024 [ 162.281378][ T6229] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 162.332616][ T6241] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. 2026/02/19 10:43:24 executed programs: 35 [ 162.424905][ T6231] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 162.440421][ T6231] EXT4-fs warning (device loop4): ext4_es_cache_extent:1082: inode #15: comm syz.4.21: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 162.440421][ T6231] [ 162.463390][ T5974] EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 162.490028][ T6232] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 162.546949][ T6245] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 162.547658][ T6231] EXT4-fs (loop4): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 162.585398][ T6231] EXT4-fs (loop4): This should not happen!! Data will be lost [ 162.585398][ T6231] [ 162.625258][ T6231] EXT4-fs (loop4): Total free blocks count 0 [ 162.632297][ T6231] EXT4-fs (loop4): Free/Dirty block details [ 162.638400][ T6231] EXT4-fs (loop4): free_blocks=16 [ 162.643723][ T6231] EXT4-fs (loop4): dirty_blocks=0 [ 162.648320][ T5964] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 162.648866][ T6231] EXT4-fs (loop4): Block reservation details [ 162.689820][ T6231] EXT4-fs (loop4): i_reserved_data_blocks=0 [ 162.698124][ T6240] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 162.799091][ T6242] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 162.834247][ T5975] EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 162.865339][ T5978] EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 162.865918][ T6255] loop3: detected capacity change from 0 to 1024 [ 162.881684][ T6257] loop0: detected capacity change from 0 to 1024 [ 162.905720][ T5965] EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 162.963236][ T6257] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 163.005332][ T6255] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 163.012513][ T6265] loop4: detected capacity change from 0 to 1024 [ 163.072528][ T6264] loop2: detected capacity change from 0 to 1024 [ 163.087464][ T6267] loop1: detected capacity change from 0 to 1024 [ 163.115051][ T6265] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 163.165730][ T6264] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 163.239272][ T6256] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 163.240050][ T6267] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 163.331730][ T6254] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 163.409972][ T6264] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 163.433525][ T5964] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 163.464358][ T6277] EXT4-fs error (device loop2): ext4_find_extent:941: inode #18: comm syz.2.44: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 5, max 84(84), depth 0(0) [ 163.464907][ T6264] EXT4-fs warning (device loop2): ext4_es_cache_extent:1082: inode #15: comm syz.2.44: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 163.464907][ T6264] [ 163.486069][ T6263] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 163.557226][ T6277] EXT4-fs (loop2): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 1 with error 28 [ 163.570085][ T6277] EXT4-fs (loop2): This should not happen!! Data will be lost [ 163.570085][ T6277] [ 163.582809][ T5974] EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 163.584471][ T6277] EXT4-fs (loop2): Total free blocks count 0 [ 163.597991][ T6277] EXT4-fs (loop2): Free/Dirty block details [ 163.604566][ T6277] EXT4-fs (loop2): free_blocks=32 [ 163.632892][ T6264] EXT4-fs (loop2): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 163.643920][ T5978] EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 163.647559][ T6266] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 163.700367][ T6264] EXT4-fs (loop2): This should not happen!! Data will be lost [ 163.700367][ T6264] [ 163.727623][ T6264] EXT4-fs (loop2): Total free blocks count 0 [ 163.735805][ T6264] EXT4-fs (loop2): Free/Dirty block details [ 163.780757][ T5965] EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 163.810378][ T6281] loop0: detected capacity change from 0 to 1024 [ 163.860640][ T6283] loop4: detected capacity change from 0 to 1024 [ 163.864942][ T6281] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 163.879389][ T6285] loop3: detected capacity change from 0 to 1024 [ 163.984623][ T6285] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 164.040851][ T6283] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 164.135835][ T6280] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 164.204535][ T6293] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 164.275153][ T5964] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 164.293301][ T6284] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 164.311762][ T6295] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 164.427434][ T6282] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 164.475580][ T6294] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 164.492439][ T6288] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 164.857271][ T6304] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 165.067222][ T6310] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 165.109773][ T6311] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 165.127860][ T6309] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 165.163296][ T6325] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.53: ES cache extent failed: add [97,-98,18446744073709551615,0x8] conflict with existing [97,7,225,0x2] [ 165.163296][ T6325] [ 165.172482][ T6309] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #15: comm syz.3.53: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 165.172482][ T6309] [ 165.219724][ T6325] EXT4-fs error (device loop3): ext4_ext_map_blocks:4280: inode #18: comm syz.3.53: bad extent address lblock: 104, depth: 1 pblock 0 [ 165.236752][ T6325] EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 165.250254][ T6325] EXT4-fs (loop3): This should not happen!! Data will be lost [ 165.250254][ T6325] [ 165.262766][ T6325] EXT4-fs (loop3): Total free blocks count 0 [ 165.274751][ T6325] EXT4-fs (loop3): Free/Dirty block details [ 165.282790][ T6309] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 165.305328][ T6319] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 165.340616][ T6309] EXT4-fs (loop3): This should not happen!! Data will be lost [ 165.340616][ T6309] [ 165.361871][ T6325] EXT4-fs (loop3): free_blocks=16 [ 165.367024][ T6325] EXT4-fs (loop3): dirty_blocks=0 [ 165.390421][ T6325] EXT4-fs (loop3): Block reservation details [ 165.396460][ T6325] EXT4-fs (loop3): i_reserved_data_blocks=0 [ 165.714698][ T6328] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 165.802353][ T6332] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 165.916497][ T6344] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 165.919752][ T6340] EXT4-fs error (device loop1): ext4_ext_remove_space:3002: inode #15: comm syz.1.60: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 165.969885][ T6344] EXT4-fs error (device loop3): ext4_ext_remove_space:3002: inode #15: comm syz.3.61: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 165.981365][ T6330] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 166.006299][ T6344] EXT4-fs error (device loop3): ext4_find_extent:941: inode #15: comm syz.3.61: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 166.070530][ T6344] EXT4-fs error (device loop3): ext4_find_extent:941: inode #15: comm syz.3.61: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 166.143406][ T6340] EXT4-fs error (device loop1): ext4_find_extent:941: inode #15: comm syz.1.60: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 166.196819][ T6340] EXT4-fs error (device loop1): ext4_find_extent:941: inode #15: comm syz.1.60: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 166.217199][ T6344] EXT4-fs error (device loop3): ext4_ext_remove_space:3002: inode #15: comm syz.3.61: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 166.265431][ T6344] EXT4-fs error (device loop3): ext4_find_extent:941: inode #15: comm syz.3.61: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 166.299241][ T6340] EXT4-fs error (device loop1): ext4_ext_remove_space:3002: inode #15: comm syz.1.60: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 166.332867][ T6340] EXT4-fs error (device loop1): ext4_find_extent:941: inode #15: comm syz.1.60: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 166.355516][ T6340] EXT4-fs (loop1): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 117 [ 166.365374][ T6344] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 117 [ 166.368298][ T6340] EXT4-fs (loop1): This should not happen!! Data will be lost [ 166.368298][ T6340] [ 166.392566][ T6340] EXT4-fs error (device loop1): ext4_ext_remove_space:3002: inode #15: comm syz.1.60: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 166.439015][ T6340] loop1: lost file I/O error report for ino 15 type 5 pos 0x0 len 0x0 error -117 [ 166.458682][ T6344] EXT4-fs (loop3): This should not happen!! Data will be lost [ 166.458682][ T6344] [ 166.532934][ T6344] EXT4-fs error (device loop3): ext4_ext_remove_space:3002: inode #15: comm syz.3.61: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 166.554703][ T6340] EXT4-fs error (device loop1): ext4_evict_inode:266: comm syz.1.60: couldn't truncate inode 15 (err -117) [ 166.593982][ T6344] loop3: lost file I/O error report for ino 15 type 5 pos 0x0 len 0x0 error -117 [ 166.597996][ T6344] EXT4-fs error (device loop3): ext4_evict_inode:266: comm syz.3.61: couldn't truncate inode 15 (err -117) [ 166.692347][ T6355] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 166.695994][ T6360] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 166.721719][ T6368] EXT4-fs error (device loop4): ext4_ext_remove_space:3002: inode #18: comm syz.4.64: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 7, max 84(84), depth 0(0) [ 166.740631][ T6360] EXT4-fs warning (device loop4): ext4_es_cache_extent:1082: inode #15: comm syz.4.64: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 166.740631][ T6360] [ 166.741498][ T6360] EXT4-fs (loop4): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 166.775977][ T6360] EXT4-fs (loop4): This should not happen!! Data will be lost [ 166.775977][ T6360] [ 166.787695][ T6360] EXT4-fs (loop4): Total free blocks count 0 [ 166.816777][ T6357] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 166.851040][ T6360] EXT4-fs (loop4): Free/Dirty block details [ 166.857220][ T6360] EXT4-fs (loop4): free_blocks=16 [ 166.887864][ T6360] EXT4-fs (loop4): dirty_blocks=0 [ 166.893682][ T6360] EXT4-fs (loop4): Block reservation details [ 166.902576][ T6360] EXT4-fs (loop4): i_reserved_data_blocks=0 [ 166.911779][ T6368] EXT4-fs error (device loop4): ext4_ext_map_blocks:4280: inode #18: comm syz.4.64: bad extent address lblock: 100, depth: 1 pblock 0 [ 167.022715][ T6368] EXT4-fs error (device loop4): ext4_ext_map_blocks:4280: inode #18: comm syz.4.64: bad extent address lblock: 100, depth: 1 pblock 0 [ 167.040743][ T6368] EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 167.073454][ T6368] EXT4-fs (loop4): This should not happen!! Data will be lost [ 167.073454][ T6368] [ 167.301937][ T6373] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 167.328551][ T6388] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 18: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 167.374362][ T6370] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. 2026/02/19 10:43:29 executed programs: 64 [ 167.526786][ T6391] set_capacity_and_notify: 19 callbacks suppressed [ 167.526804][ T6391] loop4: detected capacity change from 0 to 1024 [ 167.575362][ T6378] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 167.759314][ T6395] loop2: detected capacity change from 0 to 1024 [ 167.824543][ T6398] loop0: detected capacity change from 0 to 1024 [ 167.864061][ T6390] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 167.870164][ T6402] loop1: detected capacity change from 0 to 1024 [ 167.924856][ T6405] loop3: detected capacity change from 0 to 1024 [ 168.134034][ T6394] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 168.191981][ T6416] loop4: detected capacity change from 0 to 1024 [ 168.218076][ T6415] EXT4-fs error (device loop3): ext4_find_extent:941: inode #18: comm syz.3.74: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 2, max 84(84), depth 0(0) [ 168.218099][ T6405] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 168.242300][ T6401] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 168.323569][ T6397] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 168.351125][ T6405] EXT4-fs (loop3): pa ffff8880755210e8: logic 0, phys. 193, len 4 [ 168.359058][ T6405] EXT4-fs error (device loop3): ext4_mb_release_inode_pa:5467: group 0, free 4, pa_free 3 [ 168.370447][ T6405] EXT4-fs (loop3): pa ffff8880378ac2b8: logic 64, phys. 257, len 4 [ 168.378394][ T6405] EXT4-fs error (device loop3): ext4_mb_release_inode_pa:5467: group 0, free 3, pa_free 1 [ 168.402613][ T6405] EXT4-fs error (device loop3): ext4_free_blocks:6726: comm syz.3.74: Freeing blocks not in datazone - block = 0, count = 0 [ 168.421364][ T6405] EXT4-fs error (device loop3): ext4_free_blocks:6726: comm syz.3.74: Freeing blocks not in datazone - block = 0, count = 16 [ 168.425823][ T6415] EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 168.448460][ T6405] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 168.534954][ T6415] EXT4-fs (loop3): This should not happen!! Data will be lost [ 168.534954][ T6415] [ 168.557391][ T6415] EXT4-fs (loop3): Total free blocks count 0 [ 168.585304][ T6405] EXT4-fs (loop3): This should not happen!! Data will be lost [ 168.585304][ T6405] [ 168.587205][ T6415] EXT4-fs (loop3): Free/Dirty block details [ 168.601393][ T6414] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 168.633664][ T6422] loop2: detected capacity change from 0 to 1024 [ 168.652858][ T6415] EXT4-fs (loop3): free_blocks=80 [ 168.657971][ T6415] EXT4-fs (loop3): dirty_blocks=0 [ 168.686731][ T6426] loop0: detected capacity change from 0 to 1024 [ 168.717775][ T6424] loop1: detected capacity change from 0 to 1024 [ 168.894152][ T6421] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 168.924433][ T6435] loop4: detected capacity change from 0 to 1024 [ 169.012682][ T6423] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 169.021505][ T6425] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 169.221885][ T6434] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 169.271169][ T6439] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 169.508358][ T6446] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 169.552327][ T6455] EXT4-fs error (device loop1): ext4_find_extent:941: inode #18: comm syz.1.82: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 8, max 84(84), depth 0(0) [ 169.576452][ T6446] EXT4-fs (loop1): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 169.616961][ T6446] EXT4-fs (loop1): This should not happen!! Data will be lost [ 169.616961][ T6446] [ 169.639315][ T6452] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 169.666193][ T6455] EXT4-fs error (device loop1): ext4_ext_remove_space:3002: inode #18: comm syz.1.82: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 3, max 84(84), depth 0(0) [ 169.670086][ T6460] EXT4-fs warning (device loop2): ext4_es_cache_extent:1082: inode #18: comm syz.2.81: ES cache extent failed: add [97,-98,18446744073709551615,0x8] conflict with existing [97,11,225,0x2] [ 169.670086][ T6460] [ 169.750639][ T6452] EXT4-fs warning (device loop2): ext4_es_cache_extent:1082: inode #15: comm syz.2.81: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 169.750639][ T6452] [ 169.772713][ T6446] EXT4-fs (loop1): Total free blocks count 0 [ 169.778741][ T6446] EXT4-fs (loop1): Free/Dirty block details [ 169.815819][ T6446] EXT4-fs (loop1): free_blocks=16 [ 169.824694][ T6455] EXT4-fs error (device loop1): ext4_find_extent:941: inode #18: comm syz.1.82: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 3, max 84(84), depth 0(0) [ 169.826668][ T6452] EXT4-fs (loop2): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 169.855131][ T6446] EXT4-fs (loop1): dirty_blocks=0 [ 169.861233][ T6446] EXT4-fs (loop1): Block reservation details [ 169.867333][ T6446] EXT4-fs (loop1): i_reserved_data_blocks=0 [ 169.873953][ T6452] EXT4-fs (loop2): This should not happen!! Data will be lost [ 169.873953][ T6452] [ 169.884053][ T6452] EXT4-fs (loop2): Total free blocks count 0 [ 169.890273][ T6452] EXT4-fs (loop2): Free/Dirty block details [ 169.891086][ T6460] EXT4-fs error (device loop2): ext4_ext_map_blocks:4280: inode #18: comm syz.2.81: bad extent address lblock: 108, depth: 1 pblock 0 [ 169.896182][ T6452] EXT4-fs (loop2): free_blocks=16 [ 169.896202][ T6452] EXT4-fs (loop2): dirty_blocks=0 [ 169.896215][ T6452] EXT4-fs (loop2): Block reservation details [ 169.896227][ T6452] EXT4-fs (loop2): i_reserved_data_blocks=0 [ 169.962560][ T6449] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 177:freeing already freed block (bit 11); block bitmap corrupt. [ 169.979435][ T6460] EXT4-fs (loop2): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 170.013357][ T6455] EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 117 [ 170.038073][ T6460] EXT4-fs (loop2): This should not happen!! Data will be lost [ 170.038073][ T6460] [ 170.089712][ T6455] EXT4-fs (loop1): This should not happen!! Data will be lost [ 170.089712][ T6455] [ 170.123474][ T6461] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 170.148348][ T6458] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 170.494044][ T6473] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 170.581283][ T6471] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 177:freeing already freed block (bit 11); block bitmap corrupt. [ 170.583503][ T6486] EXT4-fs error (device loop2): ext4_ext_remove_space:3002: inode #18: comm syz.2.87: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 7, max 84(84), depth 0(0) [ 170.603755][ T6489] EXT4-fs error (device loop0): ext4_find_extent:941: inode #18: comm syz.0.86: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 3, max 84(84), depth 0(0) [ 170.678233][ T6473] EXT4-fs (loop2): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 170.692878][ T6476] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 170.732587][ T6471] EXT4-fs warning (device loop0): ext4_es_cache_extent:1082: inode #15: comm syz.0.86: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 170.732587][ T6471] [ 170.770557][ T6471] EXT4-fs (loop0): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 170.799628][ T6471] EXT4-fs (loop0): This should not happen!! Data will be lost [ 170.799628][ T6471] [ 170.800873][ T6478] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 170.815652][ T6471] EXT4-fs (loop0): Total free blocks count 0 [ 170.847100][ T6473] EXT4-fs (loop2): This should not happen!! Data will be lost [ 170.847100][ T6473] [ 170.871946][ T6471] EXT4-fs (loop0): Free/Dirty block details [ 170.878259][ T6471] EXT4-fs (loop0): free_blocks=16 [ 170.883657][ T6471] EXT4-fs (loop0): dirty_blocks=0 [ 170.888722][ T6471] EXT4-fs (loop0): Block reservation details [ 170.900405][ T6471] EXT4-fs (loop0): i_reserved_data_blocks=0 [ 170.910189][ T6486] EXT4-fs warning (device loop2): ext4_es_cache_extent:1082: inode #18: comm syz.2.87: ES cache extent failed: add [48,-49,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 170.910189][ T6486] [ 170.937766][ T6487] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 170.958508][ T6489] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 1 with error 28 [ 170.971552][ T6473] EXT4-fs (loop2): Total free blocks count 0 [ 170.984283][ T6489] EXT4-fs (loop0): This should not happen!! Data will be lost [ 170.984283][ T6489] [ 170.994274][ T6473] EXT4-fs (loop2): Free/Dirty block details [ 171.031342][ T6473] EXT4-fs (loop2): free_blocks=16 [ 171.057368][ T6486] EXT4-fs (loop2): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 171.073455][ T6486] EXT4-fs (loop2): This should not happen!! Data will be lost [ 171.073455][ T6486] [ 171.084137][ T6486] EXT4-fs (loop2): Total free blocks count 0 [ 171.099894][ T6473] EXT4-fs (loop2): dirty_blocks=0 [ 171.132715][ T6473] EXT4-fs (loop2): Block reservation details [ 171.347568][ T6510] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 18: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 171.436123][ T6495] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 171.512841][ T6502] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 171.558238][ T6512] EXT4-fs error (device loop4): ext4_ext_remove_space:3002: inode #18: comm syz.4.93: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 8, max 84(84), depth 0(0) [ 171.624781][ T6504] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 171.651297][ T6502] EXT4-fs (loop4): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 171.709865][ T6512] EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 171.718814][ T6502] EXT4-fs (loop4): This should not happen!! Data will be lost [ 171.718814][ T6502] [ 171.800713][ T6512] EXT4-fs (loop4): This should not happen!! Data will be lost [ 171.800713][ T6512] [ 171.810660][ T6502] EXT4-fs (loop4): Total free blocks count 0 [ 171.817216][ T6512] EXT4-fs (loop4): Total free blocks count 0 [ 171.823940][ T6502] EXT4-fs (loop4): Free/Dirty block details [ 171.830162][ T6502] EXT4-fs (loop4): free_blocks=16 [ 171.841317][ T6502] EXT4-fs (loop4): dirty_blocks=0 [ 171.843399][ T6512] EXT4-fs (loop4): Free/Dirty block details [ 171.966690][ T6515] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 172.298475][ T6520] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 172.407816][ T6531] EXT4-fs error (device loop4): ext4_remove_blocks:2481: comm syz.4.99: strange request: removal(2) 81-82 from 81:3 [ 172.426955][ T6525] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. 2026/02/19 10:43:34 executed programs: 95 [ 172.511917][ T6531] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 172.515687][ T6524] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 172.527890][ T6531] EXT4-fs error (device loop4): ext4_free_blocks:6726: comm syz.4.99: Freeing blocks not in datazone - block = 0, count = 0 [ 172.550196][ T78] EXT4-fs error (device loop4): ext4_find_extent:941: inode #18: comm kworker/u8:4: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 172.560218][ T6531] EXT4-fs error (device loop4): ext4_free_blocks:6726: comm syz.4.99: Freeing blocks not in datazone - block = 0, count = 0 [ 172.589867][ T6531] EXT4-fs error (device loop4): ext4_free_blocks:6726: comm syz.4.99: Freeing blocks not in datazone - block = 0, count = 16 [ 172.608612][ T6531] EXT4-fs error (device loop4): ext4_free_blocks:6726: comm syz.4.99: Freeing blocks not in datazone - block = 0, count = 0 [ 172.651444][ T6531] EXT4-fs error (device loop4): ext4_free_blocks:6726: comm syz.4.99: Freeing blocks not in datazone - block = 0, count = 0 [ 172.665713][ T78] EXT4-fs warning (device loop4): ext4_convert_unwritten_extents:5039: inode #18: block 63: len 1: ext4_ext_map_blocks returned -117 [ 172.731900][ T6548] set_capacity_and_notify: 21 callbacks suppressed [ 172.731919][ T6548] loop0: detected capacity change from 0 to 1024 [ 172.734308][ T6541] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, [ 172.739185][ T78] EXT4-fs (loop4): failed to convert unwritten extents to written extents -- potential data loss! (inode 18, error -117) [ 172.744944][ T6541] inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 172.787205][ T6531] EXT4-fs error (device loop4): ext4_free_blocks:6726: comm syz.4.99: Freeing blocks not in datazone - block = 0, count = 16 [ 172.797685][ T78] EXT4-fs error (device loop4): ext4_ext_map_blocks:4280: inode #18: comm kworker/u8:4: bad extent address lblock: 64, depth: 1 pblock 0 [ 172.825173][ T78] EXT4-fs warning (device loop4): ext4_convert_unwritten_extents:5039: inode #18: block 64: len 1: ext4_ext_map_blocks returned -117 [ 172.841897][ T6531] EXT4-fs (loop4): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 172.856496][ T6550] loop3: detected capacity change from 0 to 1024 [ 172.859591][ T78] EXT4-fs (loop4): failed to convert unwritten extents to written extents -- potential data loss! (inode 18, error -117) [ 172.871501][ T6531] EXT4-fs (loop4): This should not happen!! Data will be lost [ 172.871501][ T6531] [ 172.912625][ T78] EXT4-fs warning (device loop4): ext4_convert_unwritten_extents:5039: inode #18: block 80: len 1: ext4_ext_map_blocks returned -117 [ 172.926496][ T78] EXT4-fs (loop4): failed to convert unwritten extents to written extents -- potential data loss! (inode 18, error -117) [ 172.940608][ T6531] EXT4-fs (loop4): Total free blocks count 0 [ 172.946664][ T6531] EXT4-fs (loop4): Free/Dirty block details [ 172.954003][ T78] EXT4-fs warning (device loop4): ext4_convert_unwritten_extents:5039: inode #18: block 96: len 1: ext4_ext_map_blocks returned -117 [ 172.967878][ T6531] EXT4-fs (loop4): free_blocks=16 [ 172.973051][ T78] EXT4-fs (loop4): failed to convert unwritten extents to written extents -- potential data loss! (inode 18, error -117) [ 172.986199][ T6531] EXT4-fs (loop4): dirty_blocks=0 [ 172.992689][ T78] EXT4-fs warning (device loop4): ext4_convert_unwritten_extents:5039: inode #18: block 100: len 12: ext4_ext_map_blocks returned -117 [ 173.015905][ T78] EXT4-fs warning (device loop4): ext4_convert_unwritten_extents:5039: inode #18: block 112: len 1: ext4_ext_map_blocks returned -117 [ 173.047774][ T78] EXT4-fs warning (device loop4): ext4_convert_unwritten_extents:5039: inode #18: block 116: len 12: ext4_ext_map_blocks returned -117 [ 173.086943][ T6548] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 193:freeing already freed block (bit 12); block bitmap corrupt. [ 173.160562][ T6557] loop2: detected capacity change from 0 to 1024 [ 173.273600][ T6549] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 173.295988][ T6560] loop1: detected capacity change from 0 to 1024 [ 173.481389][ T6568] loop0: detected capacity change from 0 to 1024 [ 173.490394][ T6570] loop4: detected capacity change from 0 to 1024 [ 173.519019][ T6556] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 173.524987][ T6559] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 173.602406][ T6575] loop3: detected capacity change from 0 to 1024 [ 173.826292][ T6565] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 173.836824][ T6567] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 173.922435][ T6572] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 173.956587][ T6585] loop2: detected capacity change from 0 to 1024 [ 173.962419][ T6586] loop1: detected capacity change from 0 to 1024 [ 174.201198][ T6583] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 174.248143][ T6599] loop0: detected capacity change from 0 to 1024 [ 174.374649][ T6584] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 174.591730][ T6596] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 174.647540][ T6601] EXT4-fs error (device loop3): ext4_find_extent:941: inode #15: comm syz.3.115: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 174.691389][ T6601] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 174.719281][ T6597] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 174.799870][ T6601] EXT4-fs error (device loop3): ext4_ext_remove_space:3002: inode #15: comm syz.3.115: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 174.848039][ T6601] EXT4-fs error (device loop3): ext4_find_extent:941: inode #15: comm syz.3.115: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 174.896144][ T6601] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 117 [ 174.910684][ T6601] EXT4-fs (loop3): This should not happen!! Data will be lost [ 174.910684][ T6601] [ 174.911607][ T6610] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 175.014534][ T6600] EXT4-fs error (device loop3): ext4_ext_remove_space:3002: inode #15: comm syz.3.115: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 175.035689][ T6600] loop3: lost file I/O error report for ino 15 type 5 pos 0x0 len 0x0 error -117 [ 175.038245][ T6600] EXT4-fs error (device loop3): ext4_evict_inode:266: comm syz.3.115: couldn't truncate inode 15 (err -117) [ 175.092988][ T6620] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 175.191675][ T6616] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 175.354048][ T6636] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 18: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 175.447169][ T6630] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 175.611806][ T6637] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 175.742034][ T6639] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 175.846991][ T6644] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 176.083566][ T6652] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 176.221442][ T6662] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 176.249268][ T6674] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.126: ES cache extent failed: add [36,1,421,0x2] conflict with existing [0,63,576460752303423487,0x8] [ 176.249268][ T6674] [ 176.302521][ T6664] EXT4-fs warning (device loop0): ext4_es_cache_extent:1082: inode #15: comm syz.0.127: ES cache extent failed: add [33,-34,18446744073709551615,0x8] conflict with existing [32,2,321,0x2] [ 176.302521][ T6664] [ 176.324634][ T6662] EXT4-fs (loop3): pa ffff8880606af740: logic 0, phys. 257, len 4 [ 176.332621][ T6662] EXT4-fs error (device loop3): ext4_mb_release_inode_pa:5467: group 0, free 4, pa_free 3 [ 176.343271][ T6674] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.126: ES cache extent failed: add [37,3,421,0x2] conflict with existing [0,63,576460752303423487,0x8] [ 176.343271][ T6674] [ 176.370389][ T6656] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 176.395287][ T6676] EXT4-fs error (device loop4): ext4_find_extent:941: inode #18: comm syz.4.124: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 7, max 84(84), depth 0(0) [ 176.444475][ T6656] EXT4-fs (loop4): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 176.449812][ T6674] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.126: ES cache extent failed: add [40,63,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 176.449812][ T6674] [ 176.473685][ T6656] EXT4-fs (loop4): This should not happen!! Data will be lost [ 176.473685][ T6656] [ 176.529253][ T6662] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 176.549728][ T6656] EXT4-fs (loop4): Total free blocks count 0 [ 176.555790][ T6656] EXT4-fs (loop4): Free/Dirty block details [ 176.580112][ T6662] EXT4-fs (loop3): This should not happen!! Data will be lost [ 176.580112][ T6662] [ 176.581922][ T6663] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 353:freeing already freed block (bit 22); block bitmap corrupt. [ 176.650651][ T6674] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.126: ES cache extent failed: add [36,1,421,0x2] conflict with existing [0,40,576460752303423487,0x8] [ 176.650651][ T6674] [ 176.671666][ T6656] EXT4-fs (loop4): free_blocks=32 [ 176.689949][ T6656] EXT4-fs (loop4): dirty_blocks=0 [ 176.737610][ T6676] EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 176.768662][ T6662] EXT4-fs (loop3): Total free blocks count 0 [ 176.775288][ T6662] EXT4-fs (loop3): Free/Dirty block details [ 176.775835][ T6674] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.126: ES cache extent failed: add [37,3,421,0x2] conflict with existing [0,40,576460752303423487,0x8] [ 176.775835][ T6674] [ 176.785292][ T6662] EXT4-fs (loop3): free_blocks=64 [ 176.807198][ T6662] EXT4-fs (loop3): dirty_blocks=0 [ 176.813241][ T6662] EXT4-fs (loop3): Block reservation details [ 176.819360][ T6662] EXT4-fs (loop3): i_reserved_data_blocks=0 [ 176.830928][ T6656] EXT4-fs (loop4): Block reservation details [ 176.836990][ T6656] EXT4-fs (loop4): i_reserved_data_blocks=0 [ 176.849938][ T6676] EXT4-fs (loop4): This should not happen!! Data will be lost [ 176.849938][ T6676] [ 176.889350][ T6674] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.126: ES cache extent failed: add [40,63,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 176.889350][ T6674] [ 176.913547][ T6674] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.126: ES cache extent failed: add [36,1,421,0x2] conflict with existing [0,40,576460752303423487,0x8] [ 176.913547][ T6674] [ 176.936120][ T6674] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.126: ES cache extent failed: add [37,3,421,0x2] conflict with existing [0,40,576460752303423487,0x8] [ 176.936120][ T6674] [ 176.957312][ T6674] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.126: ES cache extent failed: add [40,63,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 176.957312][ T6674] [ 176.986975][ T6686] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 18: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 177.022287][ T6677] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 177.093645][ T6674] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.126: ES cache extent failed: add [36,1,421,0x2] conflict with existing [0,40,576460752303423487,0x8] [ 177.093645][ T6674] [ 177.143184][ T6674] EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 177.521647][ T6687] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 177.555933][ T6691] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. 2026/02/19 10:43:40 executed programs: 130 [ 177.633710][ T6695] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 177.677037][ T6689] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 177.817801][ T6713] set_capacity_and_notify: 21 callbacks suppressed [ 177.817820][ T6713] loop0: detected capacity change from 0 to 1024 [ 177.866448][ T6714] loop4: detected capacity change from 0 to 1024 [ 177.951879][ T6694] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 178.056567][ T6712] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 178.147308][ T6719] loop1: detected capacity change from 0 to 1024 [ 178.165793][ T6725] loop3: detected capacity change from 0 to 1024 [ 178.241041][ T6711] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 178.348423][ T6732] loop0: detected capacity change from 0 to 1024 [ 178.562833][ T6724] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 178.630797][ T6742] loop4: detected capacity change from 0 to 1024 [ 178.644883][ T6717] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 178.656442][ T6743] EXT4-fs (loop0): pa ffff8880607c9bc8: logic 80, phys. 161, len 3 [ 178.668164][ T6743] EXT4-fs error (device loop0): ext4_mb_release_inode_pa:5467: group 0, free 0, pa_free 1 [ 178.699709][ T6741] loop2: detected capacity change from 0 to 1024 [ 178.840316][ T6731] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 178.972867][ T6740] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 179.060965][ T6739] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 179.088331][ T6750] loop3: detected capacity change from 0 to 1024 [ 179.169311][ T6756] loop0: detected capacity change from 0 to 1024 [ 179.194516][ T6752] loop1: detected capacity change from 0 to 1024 [ 179.301246][ T6750] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 179.324370][ T6750] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #15: comm syz.3.147: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 179.324370][ T6750] [ 179.347325][ T6750] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 179.348507][ T6760] EXT4-fs error (device loop3): ext4_ext_map_blocks:4280: inode #18: comm syz.3.147: bad extent address lblock: 98, depth: 1 pblock 0 [ 179.377183][ T6750] EXT4-fs (loop3): This should not happen!! Data will be lost [ 179.377183][ T6750] [ 179.402315][ T6750] EXT4-fs (loop3): Total free blocks count 0 [ 179.409294][ T6750] EXT4-fs (loop3): Free/Dirty block details [ 179.415712][ T6750] EXT4-fs (loop3): free_blocks=32 [ 179.421479][ T6750] EXT4-fs (loop3): dirty_blocks=0 [ 179.426659][ T6750] EXT4-fs (loop3): Block reservation details [ 179.433139][ T6750] EXT4-fs (loop3): i_reserved_data_blocks=0 [ 179.466394][ T6760] EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 1 with error 28 [ 179.484034][ T6760] EXT4-fs (loop3): This should not happen!! Data will be lost [ 179.484034][ T6760] [ 179.563652][ T6751] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 179.580724][ T6755] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 179.733644][ T6758] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 177:freeing already freed block (bit 11); block bitmap corrupt. [ 179.764660][ T6764] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 179.809775][ T6772] EXT4-fs error (device loop4): ext4_find_extent:941: inode #18: comm syz.4.149: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 5, max 84(84), depth 0(0) [ 179.934877][ T6758] EXT4-fs (loop4): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 179.967349][ T6772] EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 1 with error 28 [ 180.043061][ T6758] EXT4-fs (loop4): This should not happen!! Data will be lost [ 180.043061][ T6758] [ 180.050491][ T6772] EXT4-fs (loop4): This should not happen!! Data will be lost [ 180.050491][ T6772] [ 180.080611][ T6758] EXT4-fs (loop4): Total free blocks count 0 [ 180.086753][ T6758] EXT4-fs (loop4): Free/Dirty block details [ 180.097227][ T6758] EXT4-fs (loop4): free_blocks=16 [ 180.102739][ T6758] EXT4-fs (loop4): dirty_blocks=0 [ 180.107966][ T6758] EXT4-fs (loop4): Block reservation details [ 180.149097][ T6772] EXT4-fs (loop4): Total free blocks count 0 [ 180.157054][ T6779] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 180.246542][ T6790] EXT4-fs error (device loop1): ext4_find_extent:941: inode #18: comm syz.1.152: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 7, max 84(84), depth 0(0) [ 180.277794][ T6779] EXT4-fs (loop1): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 180.352774][ T6775] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 180.389864][ T6779] EXT4-fs (loop1): This should not happen!! Data will be lost [ 180.389864][ T6779] [ 180.402135][ T6790] EXT4-fs error (device loop1): ext4_ext_remove_space:3002: inode #18: comm syz.1.152: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 2, max 84(84), depth 0(0) [ 180.402417][ T6781] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 180.429046][ T6790] EXT4-fs error (device loop1): ext4_find_extent:941: inode #18: comm syz.1.152: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 2, max 84(84), depth 0(0) [ 180.497664][ T6790] EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 117 [ 180.515604][ T6790] EXT4-fs (loop1): This should not happen!! Data will be lost [ 180.515604][ T6790] [ 180.527254][ T6779] EXT4-fs (loop1): Total free blocks count 0 [ 180.533840][ T6779] EXT4-fs (loop1): Free/Dirty block details [ 180.540214][ T6779] EXT4-fs (loop1): free_blocks=16 [ 180.545528][ T6779] EXT4-fs (loop1): dirty_blocks=0 [ 180.550922][ T6779] EXT4-fs (loop1): Block reservation details [ 180.557118][ T6779] EXT4-fs (loop1): i_reserved_data_blocks=0 [ 180.767679][ T6793] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 180.998202][ T6800] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 181.046843][ T6802] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 181.326609][ T6811] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 181.360067][ T6816] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 181.378288][ T6812] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 181.406478][ T6827] EXT4-fs error (device loop2): ext4_ext_map_blocks:4280: inode #18: comm syz.2.160: bad extent address lblock: 114, depth: 1 pblock 0 [ 181.420696][ T6816] EXT4-fs warning (device loop2): ext4_es_cache_extent:1082: inode #15: comm syz.2.160: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 181.420696][ T6816] [ 181.421547][ T6816] EXT4-fs (loop2): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 181.470617][ T6827] EXT4-fs (loop2): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 181.564897][ T6816] EXT4-fs (loop2): This should not happen!! Data will be lost [ 181.564897][ T6816] [ 181.569531][ T6827] EXT4-fs (loop2): This should not happen!! Data will be lost [ 181.569531][ T6827] [ 181.589095][ T6827] EXT4-fs (loop2): Total free blocks count 0 [ 181.600461][ T6827] EXT4-fs (loop2): Free/Dirty block details [ 181.606476][ T6827] EXT4-fs (loop2): free_blocks=16 [ 181.611618][ T6827] EXT4-fs (loop2): dirty_blocks=0 [ 181.616726][ T6827] EXT4-fs (loop2): Block reservation details [ 181.624214][ T6827] EXT4-fs (loop2): i_reserved_data_blocks=0 [ 181.776194][ T6825] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 181.826712][ T6837] EXT4-fs error (device loop4): ext4_find_extent:941: inode #18: comm syz.4.161: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 7, max 84(84), depth 0(0) [ 181.826791][ T6829] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 181.950409][ T6837] EXT4-fs (loop4): pa ffff8880607e8828: logic 64, phys. 321, len 4 [ 181.958375][ T6837] EXT4-fs error (device loop4): ext4_mb_release_inode_pa:5467: group 0, free 3, pa_free 1 [ 182.020235][ T6829] EXT4-fs (loop4): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 182.072386][ T6837] EXT4-fs (loop4): pa ffff8880607e8ae0: logic 0, phys. 257, len 4 [ 182.080441][ T6837] EXT4-fs error (device loop4): ext4_mb_release_inode_pa:5467: group 0, free 4, pa_free 3 [ 182.123584][ T6829] EXT4-fs (loop4): This should not happen!! Data will be lost [ 182.123584][ T6829] [ 182.155958][ T6829] EXT4-fs (loop4): Total free blocks count 0 [ 182.168346][ T6829] EXT4-fs (loop4): Free/Dirty block details [ 182.196118][ T6837] EXT4-fs error (device loop4): ext4_ext_remove_space:3002: inode #18: comm syz.4.161: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 2, max 84(84), depth 0(0) [ 182.228465][ T6834] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 182.238222][ T6837] EXT4-fs error (device loop4): ext4_find_extent:941: inode #18: comm syz.4.161: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 2, max 84(84), depth 0(0) [ 182.245883][ T6838] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 182.288315][ T6829] EXT4-fs (loop4): free_blocks=80 [ 182.306325][ T6829] EXT4-fs (loop4): dirty_blocks=0 [ 182.324222][ T6829] EXT4-fs (loop4): Block reservation details [ 182.386823][ T6845] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 182.401917][ T6829] EXT4-fs (loop4): i_reserved_data_blocks=0 [ 182.476181][ T6851] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 182.506205][ T6857] EXT4-fs error (device loop3): ext4_ext_map_blocks:4280: inode #18: comm syz.3.166: bad extent address lblock: 113, depth: 1 pblock 0 [ 182.529868][ T6851] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #15: comm syz.3.166: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 182.529868][ T6851] [ 182.555060][ T6857] EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 1 with error 28 [ 182.616091][ T6851] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 182.680470][ T6857] EXT4-fs (loop3): This should not happen!! Data will be lost [ 182.680470][ T6857] [ 182.715829][ T6851] EXT4-fs (loop3): This should not happen!! Data will be lost [ 182.715829][ T6851] [ 182.729059][ T6851] EXT4-fs (loop3): Total free blocks count 0 [ 182.735480][ T6851] EXT4-fs (loop3): Free/Dirty block details [ 182.742389][ T6851] EXT4-fs (loop3): free_blocks=16 [ 182.747454][ T6851] EXT4-fs (loop3): dirty_blocks=0 [ 182.752954][ T6851] EXT4-fs (loop3): Block reservation details [ 182.758960][ T6851] EXT4-fs (loop3): i_reserved_data_blocks=0 2026/02/19 10:43:45 executed programs: 164 [ 182.843275][ T6859] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 182.931918][ T6859] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #15: comm syz.1.168: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 182.931918][ T6859] [ 182.953158][ T6862] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 182.981633][ T6860] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 183.027686][ T6859] EXT4-fs (loop1): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 183.042585][ T6859] EXT4-fs (loop1): This should not happen!! Data will be lost [ 183.042585][ T6859] [ 183.049703][ T6875] EXT4-fs (loop4): pa ffff8880605970e8: logic 64, phys. 321, len 4 [ 183.052916][ T6859] EXT4-fs (loop1): Total free blocks count 0 [ 183.060472][ T6875] EXT4-fs error (device loop4): ext4_mb_release_inode_pa:5467: group 0, free 3, pa_free 1 [ 183.066747][ T6859] EXT4-fs (loop1): Free/Dirty block details [ 183.109305][ T6878] set_capacity_and_notify: 21 callbacks suppressed [ 183.109324][ T6878] loop3: detected capacity change from 0 to 1024 [ 183.137032][ T6862] EXT4-fs warning (device loop4): ext4_es_cache_extent:1082: inode #15: comm syz.4.170: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 183.137032][ T6862] [ 183.151918][ T6859] EXT4-fs (loop1): free_blocks=16 [ 183.163388][ T6859] EXT4-fs (loop1): dirty_blocks=0 [ 183.168840][ T6859] EXT4-fs (loop1): Block reservation details [ 183.175099][ T6859] EXT4-fs (loop1): i_reserved_data_blocks=0 [ 183.217722][ T6875] EXT4-fs (loop4): pa ffff8880605972b8: logic 0, phys. 257, len 4 [ 183.225765][ T6875] EXT4-fs error (device loop4): ext4_mb_release_inode_pa:5467: group 0, free 4, pa_free 3 [ 183.237768][ T6875] EXT4-fs warning (device loop4): ext4_es_cache_extent:1082: inode #18: comm syz.4.170: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 183.237768][ T6875] [ 183.271891][ T6875] EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 183.297974][ T6862] EXT4-fs (loop4): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 183.312625][ T6862] EXT4-fs (loop4): This should not happen!! Data will be lost [ 183.312625][ T6862] [ 183.322458][ T6862] EXT4-fs (loop4): Total free blocks count 0 [ 183.328824][ T6862] EXT4-fs (loop4): Free/Dirty block details [ 183.334691][ T6863] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 183.335791][ T6862] EXT4-fs (loop4): free_blocks=80 [ 183.358984][ T6862] EXT4-fs (loop4): dirty_blocks=0 [ 183.365083][ T6862] EXT4-fs (loop4): Block reservation details [ 183.507598][ T6885] loop1: detected capacity change from 0 to 1024 [ 183.558618][ T6886] loop0: detected capacity change from 0 to 1024 [ 183.581581][ T6877] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 183.672584][ T6891] loop2: detected capacity change from 0 to 1024 [ 183.766097][ T6897] loop3: detected capacity change from 0 to 1024 [ 183.814273][ T6892] loop4: detected capacity change from 0 to 1024 [ 183.856101][ T6884] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 183.973441][ T6882] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 184.072524][ T6896] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 184.098338][ T6887] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 184.240042][ T6910] loop1: detected capacity change from 0 to 1024 [ 184.352364][ T6913] loop3: detected capacity change from 0 to 1024 [ 184.369137][ T6916] loop2: detected capacity change from 0 to 1024 [ 184.446861][ T6924] loop4: detected capacity change from 0 to 1024 [ 184.689768][ T6914] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 184.718192][ T6909] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 184.735313][ T6912] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 184.803508][ T6923] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 184.848218][ T6917] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 185.268195][ T6938] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 185.371559][ T6940] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 185.509237][ T6934] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 185.515087][ T6936] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 185.560991][ T6950] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 186.067854][ T6962] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 186.099328][ T6980] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 18: block 177:freeing already freed block (bit 11); block bitmap corrupt. [ 186.118293][ T6962] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #15: comm syz.3.189: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 186.118293][ T6962] [ 186.152932][ T6960] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 186.165489][ T6962] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 186.193329][ T6962] EXT4-fs (loop3): This should not happen!! Data will be lost [ 186.193329][ T6962] [ 186.205098][ T6962] EXT4-fs (loop3): Total free blocks count 0 [ 186.210319][ T6976] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.189: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 186.210319][ T6976] [ 186.211219][ T6962] EXT4-fs (loop3): Free/Dirty block details [ 186.238364][ T6962] EXT4-fs (loop3): free_blocks=32 [ 186.246369][ T6978] EXT4-fs warning (device loop2): ext4_es_cache_extent:1082: inode #18: comm syz.2.188: ES cache extent failed: add [97,-98,18446744073709551615,0x8] conflict with existing [97,11,225,0x2] [ 186.246369][ T6978] [ 186.294014][ T6960] EXT4-fs warning (device loop2): ext4_es_cache_extent:1082: inode #15: comm syz.2.188: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 186.294014][ T6960] [ 186.328389][ T6976] EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 186.340845][ T6976] EXT4-fs (loop3): This should not happen!! Data will be lost [ 186.340845][ T6976] [ 186.371911][ T6962] EXT4-fs (loop3): dirty_blocks=0 [ 186.407319][ T6962] EXT4-fs (loop3): Block reservation details [ 186.407573][ T6978] EXT4-fs error (device loop2): ext4_ext_map_blocks:4280: inode #18: comm syz.2.188: bad extent address lblock: 108, depth: 1 pblock 0 [ 186.456414][ T6972] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #15: comm syz.0.190: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 186.478410][ T6962] EXT4-fs (loop3): i_reserved_data_blocks=0 [ 186.486707][ T6972] EXT4-fs error (device loop0): ext4_find_extent:941: inode #15: comm syz.0.190: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 186.528452][ T6960] EXT4-fs (loop2): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 186.544440][ T6960] EXT4-fs (loop2): This should not happen!! Data will be lost [ 186.544440][ T6960] [ 186.545241][ T6967] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, [ 186.554252][ T6960] EXT4-fs (loop2): Total free blocks count 0 [ 186.554272][ T6960] EXT4-fs (loop2): Free/Dirty block details [ 186.561858][ T6967] inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 186.568015][ T6960] EXT4-fs (loop2): free_blocks=16 [ 186.589209][ T6960] EXT4-fs (loop2): dirty_blocks=0 [ 186.594364][ T6960] EXT4-fs (loop2): Block reservation details [ 186.597913][ T6978] EXT4-fs (loop2): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 186.616759][ T6978] EXT4-fs (loop2): This should not happen!! Data will be lost [ 186.616759][ T6978] [ 186.628081][ T6978] EXT4-fs (loop2): Total free blocks count 0 [ 186.640131][ T6972] EXT4-fs error (device loop0): ext4_find_extent:941: inode #15: comm syz.0.190: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 186.668698][ T6972] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #15: comm syz.0.190: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 186.709083][ T6972] EXT4-fs error (device loop0): ext4_find_extent:941: inode #15: comm syz.0.190: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 186.745652][ T6972] EXT4-fs (loop0): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 117 [ 186.763022][ T6972] EXT4-fs (loop0): This should not happen!! Data will be lost [ 186.763022][ T6972] [ 186.776755][ T6971] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #15: comm syz.0.190: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 186.857451][ T6971] loop0: lost file I/O error report for ino 15 type 5 pos 0x0 len 0x0 error -117 [ 186.858074][ T6971] EXT4-fs error (device loop0): ext4_evict_inode:266: comm syz.0.190: couldn't truncate inode 15 (err -117) [ 186.997571][ T6989] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 187.104444][ T6984] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 187.222971][ T6991] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 187.271943][ T6997] EXT4-fs mount: 271 callbacks suppressed [ 187.271964][ T6997] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 187.295442][ T6999] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.195: ES cache extent failed: add [97,-98,18446744073709551615,0x8] conflict with existing [97,15,225,0x2] [ 187.295442][ T6999] [ 187.325303][ T6991] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #15: comm syz.3.195: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 187.325303][ T6991] [ 187.344831][ T6999] EXT4-fs error (device loop3): ext4_ext_map_blocks:4280: inode #18: comm syz.3.195: bad extent address lblock: 116, depth: 1 pblock 0 [ 187.389642][ T6991] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 187.421846][ T7001] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 187.438237][ T6999] EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 187.457097][ T6991] EXT4-fs (loop3): This should not happen!! Data will be lost [ 187.457097][ T6991] [ 187.466970][ T6991] EXT4-fs (loop3): Total free blocks count 0 [ 187.472629][ T7003] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 187.473317][ T6991] EXT4-fs (loop3): Free/Dirty block details [ 187.492071][ T6991] EXT4-fs (loop3): free_blocks=16 [ 187.573126][ T6991] EXT4-fs (loop3): dirty_blocks=0 [ 187.578228][ T6991] EXT4-fs (loop3): Block reservation details [ 187.585522][ T6999] EXT4-fs (loop3): This should not happen!! Data will be lost [ 187.585522][ T6999] [ 187.595653][ T6999] EXT4-fs (loop3): Total free blocks count 0 [ 187.645979][ T7011] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 187.665080][ T6996] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 187.692536][ T7000] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 187.746982][ T7002] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 187.785656][ T5975] EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 187.814446][ T5964] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 187.845411][ T7009] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 187.846212][ T5965] EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. 2026/02/19 10:43:50 executed programs: 197 [ 187.947504][ T5978] EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 187.984347][ T7020] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 188.068023][ T7021] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 188.071110][ T7025] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 188.185193][ T7032] set_capacity_and_notify: 21 callbacks suppressed [ 188.185213][ T7032] loop1: detected capacity change from 0 to 1024 [ 188.243123][ T7018] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 188.270388][ T7021] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 188.285550][ T7034] EXT4-fs error (device loop2): ext4_ext_remove_space:3002: inode #18: comm syz.2.201: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 7, max 84(84), depth 0(0) [ 188.329838][ T7025] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 188.344940][ T7025] EXT4-fs warning (device loop0): ext4_es_cache_extent:1082: inode #15: comm syz.0.202: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 188.344940][ T7025] [ 188.347243][ T7033] EXT4-fs error (device loop0): ext4_ext_map_blocks:4280: inode #18: comm syz.0.202: bad extent address lblock: 104, depth: 1 pblock 0 [ 188.368060][ T7025] EXT4-fs (loop0): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 188.394331][ T7025] EXT4-fs (loop0): This should not happen!! Data will be lost [ 188.394331][ T7025] [ 188.404460][ T7025] EXT4-fs (loop0): Total free blocks count 0 [ 188.411989][ T7025] EXT4-fs (loop0): Free/Dirty block details [ 188.417914][ T7025] EXT4-fs (loop0): free_blocks=16 [ 188.423166][ T7025] EXT4-fs (loop0): dirty_blocks=0 [ 188.425627][ T7032] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 188.428243][ T7025] EXT4-fs (loop0): Block reservation details [ 188.459763][ T7025] EXT4-fs (loop0): i_reserved_data_blocks=0 [ 188.467859][ T7021] EXT4-fs warning (device loop2): ext4_es_cache_extent:1082: inode #15: comm syz.2.201: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 188.467859][ T7021] [ 188.504182][ T7033] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 1 with error 28 [ 188.550691][ T7034] EXT4-fs error (device loop2): ext4_ext_map_blocks:4280: inode #18: comm syz.2.201: bad extent address lblock: 108, depth: 1 pblock 0 [ 188.552653][ T5974] EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 188.572373][ T7021] EXT4-fs (loop2): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 188.577305][ T7038] loop4: detected capacity change from 0 to 1024 [ 188.599581][ T7021] EXT4-fs (loop2): This should not happen!! Data will be lost [ 188.599581][ T7021] [ 188.631636][ T7021] EXT4-fs (loop2): Total free blocks count 0 [ 188.637689][ T7021] EXT4-fs (loop2): Free/Dirty block details [ 188.647503][ T7034] EXT4-fs error (device loop2): ext4_ext_map_blocks:4280: inode #18: comm syz.2.201: bad extent address lblock: 108, depth: 1 pblock 0 [ 188.666349][ T7021] EXT4-fs (loop2): free_blocks=16 [ 188.704705][ T7038] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 188.712236][ T7021] EXT4-fs (loop2): dirty_blocks=0 [ 188.725437][ T7021] EXT4-fs (loop2): Block reservation details [ 188.731870][ T7021] EXT4-fs (loop2): i_reserved_data_blocks=0 [ 188.745489][ T7034] EXT4-fs (loop2): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 188.768162][ T7031] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 188.877857][ T7043] loop3: detected capacity change from 0 to 1024 [ 188.901328][ T5965] EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 188.978600][ T7043] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 188.991656][ T7046] loop0: detected capacity change from 0 to 1024 [ 189.056820][ T7037] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 189.083164][ T7050] loop1: detected capacity change from 0 to 1024 [ 189.156722][ T7046] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 189.178315][ T7042] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 189.197004][ T5978] EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 189.218166][ T7050] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 189.250987][ T7054] loop2: detected capacity change from 0 to 1024 [ 189.337140][ T5974] EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 189.402076][ T7054] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 189.430153][ T7044] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 189.458155][ T7049] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 189.458429][ T7060] loop4: detected capacity change from 0 to 1024 [ 189.493758][ T7065] loop3: detected capacity change from 0 to 1024 [ 189.524141][ T5965] EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 189.551904][ T5964] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 189.571700][ T7060] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 189.622243][ T7053] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 189.667935][ T7065] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 189.676610][ T7072] loop1: detected capacity change from 0 to 1024 [ 189.734755][ T7074] loop0: detected capacity change from 0 to 1024 [ 189.791883][ T7064] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 189.833615][ T7074] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 189.841002][ T7072] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 189.847924][ T7059] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 189.887426][ T5975] EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 189.936805][ T5974] EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 190.064587][ T7073] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 190.083764][ T7072] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 177:freeing already freed block (bit 11); block bitmap corrupt. [ 190.116767][ T7081] EXT4-fs error (device loop1): ext4_find_extent:941: inode #18: comm syz.1.211: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 190.178038][ T7072] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #15: comm syz.1.211: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 190.178038][ T7072] [ 190.185390][ T7081] EXT4-fs (loop1): pa ffff88803783f9f8: logic 64, phys. 193, len 4 [ 190.208585][ T7081] EXT4-fs error (device loop1): ext4_mb_release_inode_pa:5467: group 0, free 3, pa_free 2 [ 190.248252][ T7081] EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 1 with error 28 [ 190.260940][ T5978] EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 190.260950][ T7081] EXT4-fs (loop1): This should not happen!! Data will be lost [ 190.260950][ T7081] [ 190.261028][ T7081] EXT4-fs (loop1): Total free blocks count 0 [ 190.288382][ T7081] EXT4-fs (loop1): Free/Dirty block details [ 190.348753][ T7087] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 190.360972][ T7072] EXT4-fs (loop1): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 190.371208][ T5964] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 190.431370][ T7081] EXT4-fs (loop1): free_blocks=48 [ 190.436464][ T7081] EXT4-fs (loop1): dirty_blocks=0 [ 190.439786][ T7072] EXT4-fs (loop1): This should not happen!! Data will be lost [ 190.439786][ T7072] [ 190.537894][ T7091] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 190.679178][ T7086] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 190.696264][ T7088] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 190.705712][ T7095] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 190.764611][ T7094] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 190.856160][ T7095] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 190.874511][ T7095] EXT4-fs warning (device loop0): ext4_es_cache_extent:1082: inode #15: comm syz.0.217: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 190.874511][ T7095] [ 190.898108][ T7095] EXT4-fs (loop0): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 190.909703][ T7104] EXT4-fs warning (device loop0): ext4_es_cache_extent:1082: inode #18: comm syz.0.217: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 190.909703][ T7104] [ 190.911278][ T7095] EXT4-fs (loop0): This should not happen!! Data will be lost [ 190.911278][ T7095] [ 190.983947][ T7094] EXT4-fs error (device loop4): ext4_find_extent:941: inode #15: comm syz.4.215: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 190.984100][ T5975] EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 191.017628][ T7095] EXT4-fs (loop0): Total free blocks count 0 [ 191.027137][ T7095] EXT4-fs (loop0): Free/Dirty block details [ 191.035029][ T5974] EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 191.039687][ T7095] EXT4-fs (loop0): free_blocks=16 [ 191.050309][ T7095] EXT4-fs (loop0): dirty_blocks=0 [ 191.059438][ T7095] EXT4-fs (loop0): Block reservation details [ 191.067944][ T7095] EXT4-fs (loop0): i_reserved_data_blocks=0 [ 191.095901][ T7104] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 191.177646][ T7094] EXT4-fs error (device loop4): ext4_ext_remove_space:3002: inode #15: comm syz.4.215: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 191.233048][ T7107] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 191.249830][ T7094] EXT4-fs error (device loop4): ext4_find_extent:941: inode #15: comm syz.4.215: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 191.340806][ T7094] EXT4-fs (loop4): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 117 [ 191.397023][ T7094] EXT4-fs (loop4): This should not happen!! Data will be lost [ 191.397023][ T7094] [ 191.409205][ T7094] EXT4-fs error (device loop4): ext4_ext_remove_space:3002: inode #15: comm syz.4.215: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 191.442713][ T7106] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 191.482504][ T7094] loop4: lost file I/O error report for ino 15 type 5 pos 0x0 len 0x0 error -117 [ 191.483020][ T7094] EXT4-fs error (device loop4): ext4_evict_inode:266: comm syz.4.215: couldn't truncate inode 15 (err -117) [ 191.486585][ T7113] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 191.558129][ T7115] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 191.575954][ T5965] EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 191.711099][ T5978] EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 191.732554][ T7114] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 191.783746][ T7125] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 191.838121][ T5975] EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 191.907858][ T7130] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 191.927550][ T5974] EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 192.001009][ T7124] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 192.094522][ T7127] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 192.124174][ T7135] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 192.174656][ T5964] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 192.260201][ T5965] EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 192.301917][ T7141] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 192.384548][ T7140] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 192.415344][ T7134] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 192.444080][ T7146] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 192.470112][ T7151] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 18: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 192.573496][ T7146] EXT4-fs error (device loop0): ext4_find_extent:941: inode #15: comm syz.0.229: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 192.575037][ T7139] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 192.659461][ T5974] EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 192.664638][ T7153] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 192.704299][ T7146] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #15: comm syz.0.229: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 192.717934][ T5978] EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 192.743354][ T7146] EXT4-fs error (device loop0): ext4_find_extent:941: inode #15: comm syz.0.229: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 192.777432][ T5975] EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 192.815592][ T7146] EXT4-fs (loop0): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 117 [ 192.829161][ T7146] EXT4-fs (loop0): This should not happen!! Data will be lost [ 192.829161][ T7146] [ 192.851010][ T7144] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #15: comm syz.0.229: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 192.884293][ T7152] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. 2026/02/19 10:43:55 executed programs: 227 [ 192.939190][ T7144] loop0: lost file I/O error report for ino 15 type 5 pos 0x0 len 0x0 error -117 [ 192.946052][ T7144] EXT4-fs error (device loop0): ext4_evict_inode:266: comm syz.0.229: couldn't truncate inode 15 (err -117) [ 193.017392][ T7159] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 193.035701][ T5965] EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 193.048767][ T5964] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 193.198583][ T7158] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 193.331691][ T7160] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 193.407137][ T7178] set_capacity_and_notify: 18 callbacks suppressed [ 193.407156][ T7178] loop1: detected capacity change from 0 to 1024 [ 193.443575][ T7162] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 193.557585][ T7183] loop3: detected capacity change from 0 to 1024 [ 193.560217][ T7171] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 193.751518][ T7174] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 193.813839][ T7189] loop4: detected capacity change from 0 to 1024 [ 193.867634][ T7191] loop2: detected capacity change from 0 to 1024 [ 193.924972][ T7182] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 193.957954][ T7197] loop0: detected capacity change from 0 to 1024 [ 194.065423][ T7189] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 194.084370][ T7189] EXT4-fs warning (device loop4): ext4_es_cache_extent:1082: inode #15: comm syz.4.238: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 194.084370][ T7189] [ 194.139721][ T7190] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 194.163010][ T7203] loop1: detected capacity change from 0 to 1024 [ 194.185317][ T7200] EXT4-fs warning (device loop4): ext4_es_cache_extent:1082: inode #18: comm syz.4.238: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 194.185317][ T7200] [ 194.232848][ T7189] EXT4-fs (loop4): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 194.278158][ T7200] EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 28 [ 194.309885][ T7196] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 194.328134][ T7189] EXT4-fs (loop4): This should not happen!! Data will be lost [ 194.328134][ T7189] [ 194.372516][ T7201] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 194.402228][ T1305] ieee802154 phy0 wpan0: encryption failed: -22 [ 194.407425][ T7189] EXT4-fs (loop4): Total free blocks count 0 [ 194.409352][ T1305] ieee802154 phy1 wpan1: encryption failed: -22 [ 194.467128][ T7209] loop3: detected capacity change from 0 to 1024 [ 194.476082][ T7189] EXT4-fs (loop4): Free/Dirty block details [ 194.494048][ T7200] EXT4-fs (loop4): This should not happen!! Data will be lost [ 194.494048][ T7200] [ 194.516249][ T7189] EXT4-fs (loop4): free_blocks=16 [ 194.521661][ T7189] EXT4-fs (loop4): dirty_blocks=0 [ 194.526785][ T7189] EXT4-fs (loop4): Block reservation details [ 194.534143][ T7189] EXT4-fs (loop4): i_reserved_data_blocks=0 [ 194.637218][ T7217] loop1: detected capacity change from 0 to 1024 [ 194.663370][ T7215] loop2: detected capacity change from 0 to 1024 [ 194.719975][ T7220] loop0: detected capacity change from 0 to 1024 [ 194.746332][ T7208] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 194.950370][ T7217] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 194.963666][ T7227] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #18: comm syz.1.245: ES cache extent failed: add [39,1,424,0x2] conflict with existing [0,63,576460752303423487,0x8] [ 194.963666][ T7227] [ 194.998284][ T7212] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 195.028447][ T7217] EXT4-fs error (device loop1): ext4_map_blocks:818: inode #15: block 18446744073709551604: comm syz.1.245: lblock 36 mapped to illegal pblock 18446744073709551604 (length 1) [ 195.064688][ T7220] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 195.067417][ T7227] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #18: comm syz.1.245: ES cache extent failed: add [39,1,424,0x2] conflict with existing [0,63,576460752303423487,0x8] [ 195.067417][ T7227] [ 195.114251][ T7232] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #18: comm syz.0.244: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 7, max 84(84), depth 0(0) [ 195.137688][ T7220] EXT4-fs (loop0): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 195.151142][ T7220] EXT4-fs (loop0): This should not happen!! Data will be lost [ 195.151142][ T7220] [ 195.182166][ T7232] EXT4-fs error (device loop0): ext4_find_extent:941: inode #18: comm syz.0.244: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 2, max 84(84), depth 0(0) [ 195.182856][ T7227] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #18: comm syz.1.245: ES cache extent failed: add [63,34,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 195.182856][ T7227] [ 195.259371][ T7227] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #18: comm syz.1.245: ES cache extent failed: add [39,1,424,0x2] conflict with existing [0,63,576460752303423487,0x8] [ 195.259371][ T7227] [ 195.264599][ T7217] EXT4-fs error (device loop1): ext4_ext_remove_space:2956: inode #15: comm syz.1.245: pblk 0 bad header/extent: invalid extent entries - magic f30a, entries 2, max 4(4), depth 0(0) [ 195.279829][ T7227] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #18: comm syz.1.245: ES cache extent failed: add [63,34,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 195.279829][ T7227] [ 195.321596][ T7227] EXT4-fs error (device loop1): ext4_ext_remove_space:2956: inode #18: comm syz.1.245: pblk 0 bad header/extent: invalid extent entries - magic f30a, entries 4, max 4(4), depth 0(0) [ 195.325183][ T7220] EXT4-fs (loop0): Total free blocks count 0 [ 195.360543][ T7232] EXT4-fs error (device loop0): ext4_find_extent:941: inode #18: comm syz.0.244: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 2, max 84(84), depth 0(0) [ 195.384810][ T7229] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 195.411347][ T7227] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #18: comm syz.1.245: ES cache extent failed: add [39,1,424,0x2] conflict with existing [0,63,576460752303423487,0x8] [ 195.411347][ T7227] [ 195.441295][ T7232] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #18: comm syz.0.244: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 2, max 84(84), depth 0(0) [ 195.466695][ T7220] EXT4-fs (loop0): Free/Dirty block details [ 195.474256][ T7227] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #18: comm syz.1.245: ES cache extent failed: add [63,34,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 195.474256][ T7227] [ 195.474383][ T7227] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #18: comm syz.1.245: ES cache extent failed: add [39,1,424,0x2] conflict with existing [0,63,576460752303423487,0x8] [ 195.474383][ T7227] [ 195.474423][ T7227] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #18: comm syz.1.245: ES cache extent failed: add [63,34,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 195.474423][ T7227] [ 195.474531][ T7227] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #18: comm syz.1.245: ES cache extent failed: add [39,1,424,0x2] conflict with existing [0,63,576460752303423487,0x8] [ 195.474531][ T7227] [ 195.497712][ T7217] EXT4-fs (loop1): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 117 [ 195.518757][ T7227] EXT4-fs error (device loop1): ext4_ext_remove_space:2956: inode #18: comm syz.1.245: pblk 0 bad header/extent: invalid extent entries - magic f30a, entries 4, max 4(4), depth 0(0) [ 195.622867][ T7220] EXT4-fs (loop0): free_blocks=16 [ 195.632589][ T7232] EXT4-fs error (device loop0): ext4_find_extent:941: inode #18: comm syz.0.244: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 2, max 84(84), depth 0(0) [ 195.656935][ T7220] EXT4-fs (loop0): dirty_blocks=0 [ 195.663221][ T7217] EXT4-fs (loop1): This should not happen!! Data will be lost [ 195.663221][ T7217] [ 195.675112][ T7220] EXT4-fs (loop0): Block reservation details [ 195.683881][ T7227] EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 1 with error 28 [ 195.696811][ T7220] EXT4-fs (loop0): i_reserved_data_blocks=0 [ 195.730943][ T7217] EXT4-fs error (device loop1): ext4_ext_remove_space:2956: inode #15: comm syz.1.245: pblk 0 bad header/extent: invalid extent entries - magic f30a, entries 2, max 4(4), depth 0(0) [ 195.755398][ T7232] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 117 [ 195.783177][ T7217] loop1: lost file I/O error report for ino 15 type 5 pos 0x0 len 0x0 error -117 [ 195.783340][ T7232] EXT4-fs (loop0): This should not happen!! Data will be lost [ 195.783340][ T7232] [ 195.784248][ T7238] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 195.836402][ T7227] EXT4-fs (loop1): This should not happen!! Data will be lost [ 195.836402][ T7227] [ 195.890701][ T7217] EXT4-fs error (device loop1): ext4_evict_inode:266: comm syz.1.245: couldn't truncate inode 15 (err -117) [ 195.928895][ T7227] EXT4-fs (loop1): Total free blocks count 0 [ 195.962935][ T7227] EXT4-fs (loop1): Free/Dirty block details [ 195.968997][ T7227] EXT4-fs (loop1): free_blocks=16 [ 195.984143][ T7236] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 196.079875][ T7227] EXT4-fs (loop1): dirty_blocks=0 [ 196.124861][ T7227] EXT4-fs (loop1): Block reservation details [ 196.131067][ T7227] EXT4-fs (loop1): i_reserved_data_blocks=0 [ 196.292208][ T7245] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 196.359050][ T7251] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 196.452701][ T7253] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 196.464643][ T7262] EXT4-fs error (device loop0): ext4_find_extent:941: inode #18: comm syz.0.251: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 8, max 84(84), depth 0(0) [ 196.489603][ T7262] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #18: comm syz.0.251: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 8, max 84(84), depth 0(0) [ 196.514565][ T7253] EXT4-fs (loop0): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 196.530648][ T7262] EXT4-fs error (device loop0): ext4_find_extent:941: inode #18: comm syz.0.251: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 3, max 84(84), depth 0(0) [ 196.585308][ T7261] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 196.600395][ T7253] EXT4-fs (loop0): This should not happen!! Data will be lost [ 196.600395][ T7253] [ 196.611942][ T7253] EXT4-fs (loop0): Total free blocks count 0 [ 196.617975][ T7253] EXT4-fs (loop0): Free/Dirty block details [ 196.624673][ T7253] EXT4-fs (loop0): free_blocks=16 [ 196.629809][ T7253] EXT4-fs (loop0): dirty_blocks=0 [ 196.634857][ T7253] EXT4-fs (loop0): Block reservation details [ 196.640957][ T7253] EXT4-fs (loop0): i_reserved_data_blocks=0 [ 196.649635][ T7262] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 117 [ 196.678248][ T7271] EXT4-fs error (device loop1): ext4_find_extent:941: inode #18: comm syz.1.254: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 6, max 84(84), depth 0(0) [ 196.678772][ T7264] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 196.739139][ T7271] EXT4-fs (loop1): pa ffff88805e493570: logic 64, phys. 321, len 4 [ 196.747620][ T7271] EXT4-fs error (device loop1): ext4_mb_release_inode_pa:5467: group 0, free 3, pa_free 2 [ 196.759660][ T7262] EXT4-fs (loop0): This should not happen!! Data will be lost [ 196.759660][ T7262] [ 196.763808][ T7271] EXT4-fs error (device loop1): ext4_ext_remove_space:3002: inode #18: comm syz.1.254: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 196.851915][ T7264] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #15: comm syz.1.254: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 196.851915][ T7264] [ 196.882702][ T7271] EXT4-fs error (device loop1): ext4_ext_map_blocks:4280: inode #18: comm syz.1.254: bad extent address lblock: 63, depth: 1 pblock 0 [ 196.925373][ T7264] EXT4-fs (loop1): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 196.939451][ T7271] EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 1 with error 117 [ 196.952883][ T7264] EXT4-fs (loop1): This should not happen!! Data will be lost [ 196.952883][ T7264] [ 196.964269][ T7271] EXT4-fs (loop1): This should not happen!! Data will be lost [ 196.964269][ T7271] [ 196.974207][ T7264] EXT4-fs (loop1): Total free blocks count 0 [ 196.981532][ T7264] EXT4-fs (loop1): Free/Dirty block details [ 196.987903][ T7264] EXT4-fs (loop1): free_blocks=96 [ 196.993396][ T7264] EXT4-fs (loop1): dirty_blocks=0 [ 196.998723][ T7264] EXT4-fs (loop1): Block reservation details [ 197.142540][ T7274] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 197.207581][ T7272] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 197.268381][ T7276] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 197.563116][ T7287] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 197.653893][ T7294] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 197.810857][ T7289] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 197.888145][ T7293] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 197.921771][ T7300] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. 2026/02/19 10:44:00 executed programs: 259 [ 198.298166][ T7312] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 198.431211][ T7317] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 198.524344][ T7322] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 198.641938][ T7325] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 198.765965][ T7341] set_capacity_and_notify: 21 callbacks suppressed [ 198.765986][ T7341] loop0: detected capacity change from 0 to 1024 [ 198.793044][ T7340] loop1: detected capacity change from 0 to 1024 [ 198.797614][ T7319] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 198.830336][ T7343] loop3: detected capacity change from 0 to 1024 [ 199.016354][ T7343] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 199.031041][ T7351] EXT4-fs (loop3): pa ffff88805e455488: logic 64, phys. 257, len 4 [ 199.031801][ T7343] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #15: comm syz.3.270: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 199.031801][ T7343] [ 199.038966][ T7351] EXT4-fs error (device loop3): ext4_mb_release_inode_pa:5467: group 0, free 3, pa_free 1 [ 199.102946][ T7343] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 199.144467][ T7343] EXT4-fs (loop3): This should not happen!! Data will be lost [ 199.144467][ T7343] [ 199.155663][ T7343] EXT4-fs (loop3): Total free blocks count 0 [ 199.162388][ T7343] EXT4-fs (loop3): Free/Dirty block details [ 199.168654][ T7343] EXT4-fs (loop3): free_blocks=80 [ 199.169603][ T7351] EXT4-fs (loop3): pa ffff88805e455000: logic 0, phys. 193, len 4 [ 199.174463][ T7343] EXT4-fs (loop3): dirty_blocks=0 [ 199.181777][ T7351] EXT4-fs error (device loop3): ext4_mb_release_inode_pa:5467: group 0, free 4, pa_free 3 [ 199.198818][ T7343] EXT4-fs (loop3): Block reservation details [ 199.199415][ T7338] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 199.211103][ T7343] EXT4-fs (loop3): i_reserved_data_blocks=0 [ 199.223783][ T7339] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 199.242208][ T7356] loop2: detected capacity change from 0 to 1024 [ 199.269409][ T7354] loop4: detected capacity change from 0 to 1024 [ 199.278168][ T7351] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.270: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [63,2,256,0x2] [ 199.278168][ T7351] [ 199.520583][ T7353] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 199.531670][ T7355] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 199.625841][ T7364] loop0: detected capacity change from 0 to 1024 [ 199.646125][ T7368] loop3: detected capacity change from 0 to 1024 [ 199.672565][ T7367] loop1: detected capacity change from 0 to 1024 [ 199.799812][ T7377] loop2: detected capacity change from 0 to 1024 [ 199.810556][ T7378] loop4: detected capacity change from 0 to 1024 [ 199.853913][ T7365] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 199.977396][ T7368] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 401:freeing already freed block (bit 25); block bitmap corrupt. [ 199.992214][ T7383] EXT4-fs (loop3): pa ffff88806070eae0: logic 64, phys. 385, len 4 [ 200.000184][ T7383] EXT4-fs error (device loop3): ext4_mb_release_inode_pa:5467: group 0, free 3, pa_free 2 [ 200.010471][ T7368] EXT4-fs (loop3): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 200.023073][ T7368] EXT4-fs (loop3): This should not happen!! Data will be lost [ 200.023073][ T7368] [ 200.036962][ T7368] EXT4-fs (loop3): Total free blocks count 0 [ 200.043820][ T7368] EXT4-fs (loop3): Free/Dirty block details [ 200.052154][ T7368] EXT4-fs (loop3): free_blocks=96 [ 200.057215][ T7363] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, [ 200.057229][ T7368] EXT4-fs (loop3): dirty_blocks=0 [ 200.057248][ T7368] EXT4-fs (loop3): Block reservation details [ 200.064950][ T7363] inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 200.086933][ T7383] EXT4-fs warning (device loop3): ext4_es_cache_extent:1082: inode #18: comm syz.3.275: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [63,2,320,0x2] [ 200.086933][ T7383] [ 200.174079][ T7373] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 200.269900][ T7368] EXT4-fs (loop3): i_reserved_data_blocks=0 [ 200.406591][ T7375] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 200.708261][ T7388] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 200.760769][ T7390] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 97:freeing already freed block (bit 6); block bitmap corrupt. [ 200.975114][ T7398] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 201.009039][ T7401] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 201.161684][ T7406] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 201.247803][ T7414] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 201.537527][ T7421] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 201.612781][ T7436] EXT4-fs (loop3): pa ffff8880606693a0: logic 80, phys. 161, len 3 [ 201.620889][ T7436] EXT4-fs error (device loop3): ext4_mb_release_inode_pa:5467: group 0, free 1, pa_free 2 [ 201.725994][ T7427] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 201.814182][ T7435] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 201.891942][ T7435] EXT4-fs warning (device loop2): ext4_es_cache_extent:1082: inode #15: comm syz.2.288: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 201.891942][ T7435] [ 201.913519][ T7435] EXT4-fs (loop2): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 201.926578][ T7435] EXT4-fs (loop2): This should not happen!! Data will be lost [ 201.926578][ T7435] [ 201.936704][ T7435] EXT4-fs (loop2): Total free blocks count 0 [ 201.944026][ T7435] EXT4-fs (loop2): Free/Dirty block details [ 201.946308][ T7432] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 369:freeing already freed block (bit 23); block bitmap corrupt. [ 201.995991][ T7435] EXT4-fs (loop2): free_blocks=16 [ 202.042231][ T7442] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #15: comm syz.0.289: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 202.052951][ T7435] EXT4-fs (loop2): dirty_blocks=0 [ 202.100146][ T7435] EXT4-fs (loop2): Block reservation details [ 202.116551][ T7435] EXT4-fs (loop2): i_reserved_data_blocks=0 [ 202.157336][ T7442] EXT4-fs error (device loop0): ext4_find_extent:941: inode #15: comm syz.0.289: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 202.207827][ T7442] EXT4-fs error (device loop0): ext4_find_extent:941: inode #15: comm syz.0.289: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 202.306349][ T7442] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #15: comm syz.0.289: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 202.354590][ T7450] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 202.391819][ T7448] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 305:freeing already freed block (bit 19); block bitmap corrupt. [ 202.409961][ T7442] EXT4-fs error (device loop0): ext4_find_extent:941: inode #15: comm syz.0.289: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 202.479585][ T7442] EXT4-fs (loop0): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 117 [ 202.534530][ T7442] EXT4-fs (loop0): This should not happen!! Data will be lost [ 202.534530][ T7442] [ 202.553739][ T7442] EXT4-fs error (device loop0): ext4_ext_remove_space:3002: inode #15: comm syz.0.289: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 202.620580][ T7442] loop0: lost file I/O error report for ino 15 type 5 pos 0x0 len 0x0 error -117 [ 202.660129][ T7442] EXT4-fs error (device loop0): ext4_evict_inode:266: comm syz.0.289: couldn't truncate inode 15 (err -117) [ 202.763084][ T7460] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 202.795846][ T7462] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 15: block 209:freeing already freed block (bit 13); block bitmap corrupt. [ 202.799136][ T7475] EXT4-fs error (device loop4): ext4_find_extent:941: inode #18: comm syz.4.295: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 8, max 84(84), depth 0(0) [ 202.832790][ T7462] EXT4-fs (loop4): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 202.845897][ T7462] EXT4-fs (loop4): This should not happen!! Data will be lost [ 202.845897][ T7462] [ 202.855862][ T7462] EXT4-fs (loop4): Total free blocks count 0 [ 202.862503][ T7462] EXT4-fs (loop4): Free/Dirty block details [ 202.871150][ T7475] EXT4-fs error (device loop4): ext4_ext_remove_space:3002: inode #18: comm syz.4.295: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 3, max 84(84), depth 0(0) [ 202.898511][ T7462] EXT4-fs (loop4): free_blocks=16 [ 202.908484][ T7475] EXT4-fs error (device loop4): ext4_find_extent:941: inode #18: comm syz.4.295: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 3, max 84(84), depth 0(0) [ 202.927894][ T7462] EXT4-fs (loop4): dirty_blocks=0 [ 202.934040][ T7475] EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 2 with error 117 [ 202.946703][ T7462] EXT4-fs (loop4): Block reservation details [ 202.954674][ T7462] EXT4-fs (loop4): i_reserved_data_blocks=0 [ 202.960697][ T7475] EXT4-fs (loop4): This should not happen!! Data will be lost [ 202.960697][ T7475] [ 203.031681][ T7466] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. 2026/02/19 10:44:05 executed programs: 293 [ 203.107155][ T7474] EXT4-fs error (device loop1): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 203.147783][ T7479] EXT4-fs error (device loop1): ext4_find_extent:941: inode #18: comm syz.1.297: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 203.242843][ T7474] EXT4-fs warning (device loop1): ext4_es_cache_extent:1082: inode #15: comm syz.1.297: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 203.242843][ T7474] [ 203.286750][ T7483] EXT4-fs error (device loop0): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 203.301638][ T7490] EXT4-fs (loop0): pa ffff8880378abae0: logic 0, phys. 193, len 4 [ 203.302575][ T7474] EXT4-fs (loop1): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 203.310995][ T7490] EXT4-fs error (device loop0): ext4_mb_release_inode_pa:5467: group 0, free 4, pa_free 3 [ 203.338563][ T7483] EXT4-fs warning (device loop0): ext4_es_cache_extent:1082: inode #15: comm syz.0.298: ES cache extent failed: add [0,-1,18446744073709551615,0x8] conflict with existing [0,1,113,0x2] [ 203.338563][ T7483] [ 203.346495][ T7479] EXT4-fs error (device loop1): ext4_ext_remove_space:3002: inode #18: comm syz.1.297: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 203.377260][ T7474] EXT4-fs (loop1): This should not happen!! Data will be lost [ 203.377260][ T7474] [ 203.429144][ T7474] EXT4-fs (loop1): Total free blocks count 0 [ 203.460198][ T7490] EXT4-fs error (device loop0): ext4_ext_remove_space:2956: inode #18: comm syz.0.298: pblk 0 bad header/extent: invalid extent entries - magic f30a, entries 1, max 4(4), depth 0(0) [ 203.470684][ T7483] EXT4-fs (loop0): Delayed block allocation failed for inode 15 at logical offset 0 with max blocks 1 with error 28 [ 203.530747][ T7479] EXT4-fs error (device loop1): ext4_find_extent:941: inode #18: comm syz.1.297: pblk 145 bad header/extent: invalid extent entries - magic f30a, entries 4, max 84(84), depth 0(0) [ 203.549970][ T7474] EXT4-fs (loop1): Free/Dirty block details [ 203.566238][ T7495] EXT4-fs error (device loop4): mb_free_blocks:2047: group 0, inode 18: block 177:freeing already freed block (bit 11); block bitmap corrupt. [ 203.578949][ T7474] EXT4-fs (loop1): free_blocks=16 [ 203.594634][ T7483] EXT4-fs (loop0): This should not happen!! Data will be lost [ 203.594634][ T7483] [ 203.605113][ T7483] EXT4-fs (loop0): Total free blocks count 0 [ 203.615789][ T7479] EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 63 with max blocks 1 with error 117 [ 203.621144][ T7474] EXT4-fs (loop1): dirty_blocks=0 [ 203.631923][ T7480] EXT4-fs error (device loop2): mb_free_blocks:2047: group 0, inode 15: block 241:freeing already freed block (bit 15); block bitmap corrupt. [ 203.652003][ T7490] ------------[ cut here ]------------ [ 203.657723][ T7490] kernel BUG at fs/ext4/extents.c:2158! [ 203.666195][ T7490] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 203.672481][ T7490] CPU: 0 UID: 0 PID: 7490 Comm: syz.0.298 Not tainted syzkaller #0 PREEMPT(full) [ 203.681797][ T7490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 203.691884][ T7490] RIP: 0010:ext4_ext_insert_extent+0x4b19/0x4b50 [ 203.698336][ T7490] Code: 89 d9 80 e1 07 fe c1 38 c1 0f 8c 98 e7 ff ff 48 89 df e8 5a ea af ff e9 8b e7 ff ff e8 e0 bb 45 ff 90 0f 0b e8 d8 bb 45 ff 90 <0f> 0b e8 d0 bb 45 ff 90 0f 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c [ 203.702839][ T7479] EXT4-fs (loop1): This should not happen!! Data will be lost [ 203.702839][ T7479] [ 203.717985][ T7490] RSP: 0018:ffffc9000d1e6ac0 EFLAGS: 00010293 [ 203.718010][ T7490] RAX: ffffffff827ff6b8 RBX: 000000000000003f RCX: ffff888031f69e40 [ 203.718025][ T7490] RDX: 0000000000000000 RSI: 000000000000003f RDI: 000000000000003f [ 203.718037][ T7490] RBP: ffffc9000d1e6c70 R08: 0000000040000423 R09: 1ffffffff2023896 [ 203.718051][ T7490] R10: dffffc0000000000 R11: fffffbfff2023897 R12: 000000000000003f [ 203.718065][ T7490] R13: dffffc0000000000 R14: ffff8880590db004 R15: ffff88803666ad00 [ 203.718079][ T7490] FS: 00007f14be4cf6c0(0000) GS:ffff888125455000(0000) knlGS:0000000000000000 [ 203.718096][ T7490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 203.718109][ T7490] CR2: 00007f14bd5e9d40 CR3: 00000000759cc000 CR4: 00000000003526f0 [ 203.718128][ T7490] Call Trace: [ 203.718136][ T7490] [ 203.718148][ T7490] ? rcu_is_watching+0x15/0xb0 [ 203.718178][ T7490] ? trace_kmalloc+0x2a/0x110 [ 203.718200][ T7490] ? rcu_is_watching+0x15/0xb0 [ 203.718224][ T7490] ? trace_ext4_get_implied_cluster_alloc_exit+0x83/0x230 [ 203.718256][ T7490] ? __pfx_ext4_ext_insert_extent+0x10/0x10 [ 203.718284][ T7490] ext4_ext_map_blocks+0x1696/0x58b0 [ 203.718319][ T7490] ? __lock_acquire+0x6b5/0x2cf0 [ 203.718347][ T7490] ? ext4_alloc_io_end_vec+0x2b/0x160 [ 203.718367][ T7490] ? __pfx_ext4_ext_map_blocks+0x10/0x10 [ 203.718390][ T7490] ? kasan_save_track+0x4f/0x80 [ 203.718408][ T7490] ? kasan_save_track+0x3e/0x80 [ 203.718424][ T7490] ? __kasan_slab_alloc+0x6c/0x80 [ 203.718443][ T7490] ? kmem_cache_alloc_noprof+0x2bc/0x650 [ 203.718461][ T7490] ? ext4_alloc_io_end_vec+0x2b/0x160 [ 203.718480][ T7490] ? ext4_do_writepages+0x11c3/0x46e0 [ 203.718498][ T7490] ? ext4_writepages+0x241/0x3b0 [ 203.718522][ T7490] ? do_writepages+0x32e/0x550 [ 203.718546][ T7490] ? file_write_and_wait_range+0x36e/0x440 [ 203.758252][ T7483] EXT4-fs (loop0): Free/Dirty block details [ 203.758346][ T7490] ext4_map_create_blocks+0x11d/0x540 [ 203.779444][ T7494] EXT4-fs error (device loop3): mb_free_blocks:2047: group 0, [ 203.783224][ T7490] ext4_map_blocks+0x7cd/0x11d0 [ 203.783257][ T7490] ? __pfx_ext4_map_blocks+0x10/0x10 [ 203.789898][ T7494] inode 15: [ 203.797797][ T7490] ? ext4_inode_journal_mode+0x193/0x470 [ 203.801117][ T7494] block 241: [ 203.804021][ T7490] ext4_do_writepages+0x22c0/0x46e0 [ 203.808864][ T7494] freeing already freed block (bit 15); block bitmap corrupt. [ 203.813633][ T7490] ? __pfx_ext4_do_writepages+0x10/0x10 [ 203.813657][ T7490] ? __lock_acquire+0x6b5/0x2cf0 [ 203.820529][ T7474] EXT4-fs (loop1): Block reservation details [ 203.825524][ T7490] ? do_raw_spin_lock+0x12b/0x2f0 [ 203.832163][ T7483] EXT4-fs (loop0): free_blocks=64 [ 203.836733][ T7490] ext4_writepages+0x241/0x3b0 [ 203.843158][ T7474] EXT4-fs (loop1): i_reserved_data_blocks=0 [ 203.847031][ T7490] ? __pfx_ext4_writepages+0x10/0x10 [ 203.995036][ T7490] ? ext4_should_retry_alloc+0xff/0x2e0 [ 204.000588][ T7490] ? __pfx_ext4_writepages+0x10/0x10 [ 204.005877][ T7490] do_writepages+0x32e/0x550 [ 204.010582][ T7490] ? do_raw_spin_unlock+0xf5/0x210 [ 204.015697][ T7490] file_write_and_wait_range+0x36e/0x440 [ 204.021429][ T7490] ? __pfx_file_write_and_wait_range+0x10/0x10 [ 204.027598][ T7490] ? generic_perform_write+0x80a/0x8f0 [ 204.033060][ T7490] generic_buffers_fsync_noflush+0x70/0x1d0 [ 204.038953][ T7490] ext4_sync_file+0x321/0xb70 [ 204.043631][ T7490] ext4_buffered_write_iter+0x2ca/0x3a0 [ 204.049177][ T7490] ext4_file_write_iter+0x298/0x1bf0 [ 204.054465][ T7490] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 204.060187][ T7490] vfs_write+0x61d/0xb90 [ 204.064432][ T7490] ? __pfx_vfs_write+0x10/0x10 [ 204.069195][ T7490] ? __fget_files+0x2a/0x420 [ 204.073793][ T7490] __x64_sys_pwrite64+0x199/0x230 [ 204.078822][ T7490] ? __pfx___x64_sys_pwrite64+0x10/0x10 [ 204.084368][ T7490] do_syscall_64+0x14d/0xf80 [ 204.088962][ T7490] ? trace_irq_disable+0x3b/0x150 [ 204.094000][ T7490] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.100067][ T7490] ? clear_bhb_loop+0x40/0x90 [ 204.104745][ T7490] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.110635][ T7490] RIP: 0033:0x7f14bd59c629 [ 204.115051][ T7490] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 204.134750][ T7490] RSP: 002b:00007f14be4cf028 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 204.143169][ T7490] RAX: ffffffffffffffda RBX: 00007f14bd816090 RCX: 00007f14bd59c629 [ 204.151142][ T7490] RDX: 000000000000fdef RSI: 0000200000000140 RDI: 0000000000000005 [ 204.159120][ T7490] RBP: 00007f14bd632b39 R08: 0000000000000000 R09: 0000000000000000 [ 204.167178][ T7490] R10: 000000000000fecc R11: 0000000000000246 R12: 0000000000000000 [ 204.175146][ T7490] R13: 00007f14bd816128 R14: 00007f14bd816090 R15: 00007ffe9ff6f768 [ 204.183128][ T7490] [ 204.186145][ T7490] Modules linked in: [ 204.191796][ T7490] ---[ end trace 0000000000000000 ]--- [ 204.202415][ T7483] EXT4-fs (loop0): dirty_blocks=0 [ 204.208309][ T7483] EXT4-fs (loop0): Block reservation details [ 204.209792][ T7490] RIP: 0010:ext4_ext_insert_extent+0x4b19/0x4b50 [ 204.214470][ T7483] EXT4-fs (loop0): i_reserved_data_blocks=0 [ 204.236582][ T7490] Code: 89 d9 80 e1 07 fe c1 38 c1 0f 8c 98 e7 ff ff 48 89 df e8 5a ea af ff e9 8b e7 ff ff e8 e0 bb 45 ff 90 0f 0b e8 d8 bb 45 ff 90 <0f> 0b e8 d0 bb 45 ff 90 0f 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c [ 204.260053][ T7490] RSP: 0018:ffffc9000d1e6ac0 EFLAGS: 00010293 [ 204.266357][ T7490] RAX: ffffffff827ff6b8 RBX: 000000000000003f RCX: ffff888031f69e40 [ 204.283901][ T7490] RDX: 0000000000000000 RSI: 000000000000003f RDI: 000000000000003f [ 204.292286][ T7490] RBP: ffffc9000d1e6c70 R08: 0000000040000423 R09: 1ffffffff2023896 [ 204.305899][ T7490] R10: dffffc0000000000 R11: fffffbfff2023897 R12: 000000000000003f [ 204.314308][ T7490] R13: dffffc0000000000 R14: ffff8880590db004 R15: ffff88803666ad00 [ 204.322374][ T7490] FS: 00007f14be4cf6c0(0000) GS:ffff888125555000(0000) knlGS:0000000000000000 [ 204.373904][ T7490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 204.385982][ T7504] set_capacity_and_notify: 21 callbacks suppressed [ 204.386000][ T7504] loop2: detected capacity change from 0 to 1024 [ 204.387960][ T7507] loop4: detected capacity change from 0 to 1024 [ 204.413528][ T7490] CR2: 0000555586c6da28 CR3: 00000000759cc000 CR4: 00000000003526f0 [ 204.422318][ T7506] loop3: detected capacity change from 0 to 1024 [ 204.429074][ T7490] Kernel panic - not syncing: Fatal exception [ 204.435761][ T7490] Kernel Offset: disabled [ 204.440120][ T7490] Rebooting in 86400 seconds..