BTRFS info (device loop4): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf BTRFS warning (device loop4): transaction 10 (with 0 dirty metadata bytes) is not committed assertion failed: !found, in fs/btrfs/disk-io.c:4214 ------------[ cut here ]------------ kernel BUG at fs/btrfs/disk-io.c:4214! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 5601 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:warn_about_uncommitted_trans fs/btrfs/disk-io.c:4214 [inline] RIP: 0010:close_ctree+0x12c5/0x12d0 fs/btrfs/disk-io.c:4438 Code: e9 e0 fd ff ff e8 2b 52 9a 00 48 c7 c7 e0 54 75 8b 48 c7 c6 40 a8 75 8b 48 c7 c2 60 55 75 8b b9 76 10 00 00 e8 5c 9c fd ff 90 <0f> 0b cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000504fb60 EFLAGS: 00010246 RAX: 0000000000000034 RBX: dffffc0000000000 RCX: 2e3af9a98bbd7b00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000504fcf0 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52000a09f1d R12: ffffc9000504fc00 R13: ffffc9000504fc20 R14: ffffc9000504fbe0 R15: ffff8880631352e0 FS: 0000555586736500(0000) GS:ffff8881263a1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9594e7db72 CR3: 0000000055850000 CR4: 00000000003526f0 Call Trace: generic_shutdown_super+0x13d/0x2d0 fs/super.c:646 kill_anon_super+0x3b/0x70 fs/super.c:1292 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2127 deactivate_locked_super+0xbc/0x130 fs/super.c:476 cleanup_mnt+0x3d3/0x460 fs/namespace.c:1312 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x193/0x6b0 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline] do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0f1601e097 Code: a2 c7 05 5c 06 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd9dd39fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f0f160b21ca RCX: 00007f0f1601e097 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd9dd3a060 RBP: 00007ffd9dd3a060 R08: 00007ffd9dd3b060 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd9dd3b0f0 R13: 00007f0f160b21ca R14: 0000000000050ac4 R15: 00007ffd9dd3b130 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:warn_about_uncommitted_trans fs/btrfs/disk-io.c:4214 [inline] RIP: 0010:close_ctree+0x12c5/0x12d0 fs/btrfs/disk-io.c:4438 Code: e9 e0 fd ff ff e8 2b 52 9a 00 48 c7 c7 e0 54 75 8b 48 c7 c6 40 a8 75 8b 48 c7 c2 60 55 75 8b b9 76 10 00 00 e8 5c 9c fd ff 90 <0f> 0b cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000504fb60 EFLAGS: 00010246 RAX: 0000000000000034 RBX: dffffc0000000000 RCX: 2e3af9a98bbd7b00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000504fcf0 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52000a09f1d R12: ffffc9000504fc00 R13: ffffc9000504fc20 R14: ffffc9000504fbe0 R15: ffff8880631352e0 FS: 0000555586736500(0000) GS:ffff8881263a1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f103e29b000 CR3: 0000000055850000 CR4: 00000000003526f0