BTRFS info (device loop0): balance: start -sconvert=raid0,usage=0..1342177280 BTRFS info (device loop0): relocating block group 8519680 flags system BTRFS error (device loop0): allocation failed flags 10, wanted 4096 tree-log 0, relocation: 0 BTRFS info (device loop0): space_info SYSTEM (sub-group id 0) has 4161536 free, is not full BTRFS info (device loop0): space_info total=12451840, used=4096, pinned=0, reserved=0, may_use=32768, readonly=8253440 zone_unusable=0 BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1441792 BTRFS info (device loop0): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop0): chunk_block_rsv: size 32768 reserved 28672 BTRFS info (device loop0): remap_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_refs_rsv: size 0 reserved 0 BTRFS info (device loop0): block group 1048576 has 4194304 bytes, 0 used 0 pinned 0 reserved 0 delalloc 0 super 0 zone_unusable (4194304 bytes available) BTRFS critical (device loop0): entry offset 1048576, bytes 4194304, bitmap no BTRFS info (device loop0): block group has cluster?: no BTRFS info (device loop0): 1 free space entries at or bigger than 4096 bytes BTRFS info (device loop0): block group 8519680 has 8257536 bytes, 4096 used 0 pinned 0 reserved 0 delalloc 0 super 0 zone_unusable (8253440 bytes available) [readonly] BTRFS critical (device loop0): entry offset 8523776, bytes 8253440, bitmap no BTRFS info (device loop0): block group has cluster?: no BTRFS info (device loop0): 0 free space entries at or bigger than 4096 bytes BTRFS info (device loop0): 12447744 bytes available across all block groups BTRFS info (device loop0): relocating block group 1048576 flags system BTRFS error (device loop0): allocation failed flags 10, wanted 4096 tree-log 0, relocation: 0 BTRFS info (device loop0): space_info SYSTEM (sub-group id 0) has 8155136 free, is not full BTRFS info (device loop0): space_info total=12451840, used=4096, pinned=0, reserved=0, may_use=98304, readonly=4194304 zone_unusable=0 BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1437696 BTRFS info (device loop0): trans_block_rsv: size 262144 reserved 262144 BTRFS info (device loop0): chunk_block_rsv: size 98304 reserved 94208 BTRFS info (device loop0): remap_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_refs_rsv: size 524288 reserved 524288 BTRFS info (device loop0): block group 1048576 has 4194304 bytes, 0 used 0 pinned 0 reserved 0 delalloc 0 super 0 zone_unusable (4194304 bytes available) [readonly] BTRFS critical (device loop0): entry offset 1048576, bytes 4194304, bitmap no BTRFS info (device loop0): block group has cluster?: no BTRFS info (device loop0): 0 free space entries at or bigger than 4096 bytes BTRFS info (device loop0): block group 8519680 has 8257536 bytes, 4096 used 0 pinned 0 reserved 0 delalloc 0 super 0 zone_unusable (8253440 bytes available) BTRFS critical (device loop0): entry offset 8523776, bytes 8253440, bitmap no BTRFS info (device loop0): block group has cluster?: no BTRFS info (device loop0): 1 free space entries at or bigger than 4096 bytes BTRFS info (device loop0): 12447744 bytes available across all block groups ------------[ cut here ]------------ btrfs_abort_should_print_stack(__error) WARNING: fs/btrfs/volumes.c:3608 at btrfs_remove_chunk+0xc9b/0x1070 fs/btrfs/volumes.c:3608, CPU#0: syz.0.0/5326 Modules linked in: CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:btrfs_remove_chunk+0xc9b/0x1070 fs/btrfs/volumes.c:3608 Code: 24 fb 74 12 83 3c 24 f4 75 1a e8 50 c7 a0 fd eb 1c e8 a9 6a c3 07 e8 44 c7 a0 fd eb 10 e8 3d c7 a0 fd eb 09 e8 36 c7 a0 fd 90 <0f> 0b 90 48 8b 04 24 89 c1 f7 d9 e9 43 fc ff ff 44 89 f1 80 e1 07 RSP: 0018:ffffc9000e67f960 EFLAGS: 00010293 RAX: ffffffff842759ea RBX: ffffffffffffffe4 RCX: ffff888013ad2580 RDX: 0000000000000000 RSI: ffffffff903f0790 RDI: 00000000ffffffe4 RBP: ffffc9000e67fa98 R08: ffff888013ad2580 R09: 0000000000000003 R10: 00000000fffffffb R11: 0000000000000000 R12: 1ffff92001ccff3c R13: ffff888053e94000 R14: ffff888053e94001 R15: dffffc0000000000 FS: 00007f3b22ba86c0(0000) GS:ffff88808b0b4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564913a6a530 CR3: 0000000013f95000 CR4: 0000000000352ef0 Call Trace: btrfs_relocate_chunk_finish fs/btrfs/volumes.c:3696 [inline] btrfs_relocate_chunk+0x3e5/0x810 fs/btrfs/volumes.c:3750 __btrfs_balance+0x1b5f/0x29d0 fs/btrfs/volumes.c:4668 btrfs_balance+0xaa6/0x1180 fs/btrfs/volumes.c:5055 btrfs_ioctl_balance+0x3da/0x640 fs/btrfs/ioctl.c:3494 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3b21d9e1d9 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 RSP: 002b:00007f3b22ba7fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f3b22026090 RCX: 00007f3b21d9e1d9 RDX: 0000200000000780 RSI: 00000000c4009420 RDI: 0000000000000005 RBP: 00007f3b21e35888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3b22026128 R14: 00007f3b22026090 R15: 00007ffc0d9d6b38