BTRFS info (device loop3): last unmount of filesystem c6b85f58-0c7e-41ca-a553-c8d9f94f6663 assertion failed: list_empty(&fs_info->delayed_iputs), in fs/btrfs/disk-io.c:4332 ------------[ cut here ]------------ kernel BUG at fs/btrfs/disk-io.c:4332! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 UID: 0 PID: 6432 Comm: syz-executor Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : close_ctree+0x7e8/0xb3c fs/btrfs/disk-io.c:4332 lr : close_ctree+0x7e8/0xb3c fs/btrfs/disk-io.c:4332 sp : ffff80009bbe79c0 x29: ffff80009bbe7b20 x28: 1fffe0001a849272 x27: dfff800000000000 x26: ffff70001377cf44 x25: ffff80009bbe7a20 x24: 1fffe0001a8491f4 x23: 0000000000000000 x22: ffff0000d4248f98 x21: ffff0000d4248d38 x20: ffff0000d4248010 x19: ffff0000d4248000 x18: 0000000000000008 x17: 7274622f7366206e x16: ffff8000830d1d70 x15: 0000000000000001 x14: 1ffff0001377ce84 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 799943d1372bfa00 x8 : 799943d1372bfa00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009bbe7118 x4 : ffff80008f90d220 x3 : ffff80008306dd30 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000051 Call trace: close_ctree+0x7e8/0xb3c fs/btrfs/disk-io.c:4332 (P) close_ctree+0x7e8/0xb3c fs/btrfs/disk-io.c:4332 (L) btrfs_put_super+0x70/0x80 fs/btrfs/super.c:75 generic_shutdown_super+0x12c/0x2bc fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1237 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2114 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380 task_work_run+0x230/0x2e0 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: b0002da2 91100042 52821d83 97ffeb77 (d4210000) ---[ end trace 0000000000000000 ]---