BTRFS info (device loop7): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf assertion failed: list_empty(&fs_info->delayed_iputs), in fs/btrfs/disk-io.c:4718 ------------[ cut here ]------------ kernel BUG at fs/btrfs/ctree.h:3717! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 5229 Comm: syz-executor Not tainted 6.1.114-syzkaller #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 : assertfail+0x28/0x2c fs/btrfs/ctree.h:3716 lr : assertfail+0x28/0x2c fs/btrfs/ctree.h:3716 sp : ffff8000217776d0 x29: ffff8000217776d0 x28: 1fffe0001e242262 x27: dfff800000000000 x26: ffff7000042eeee8 x25: 1fffe0001e2421fa x24: ffff800021777740 x23: 0000000000000000 x22: ffff0000f1210fc8 x21: ffff0000f1210d58 x20: ffff0000f1210010 x19: ffff0000f1210000 x18: 1fffe0003679f176 x17: 7274622f7366206e x16: ffff800012290d3c x15: 0000000000000000 x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000000001 x11: 0000000000ff0100 x10: 0000000000000000 x9 : d79315daf99d4f00 x8 : d79315daf99d4f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800021776fd8 x4 : ffff800015ab3880 x3 : ffff80000aaa90ac x2 : ffff0001b3cf8cd0 x1 : 0000000100000000 x0 : 0000000000000051 Call trace: assertfail+0x28/0x2c fs/btrfs/ctree.h:3716 close_ctree+0x708/0xaf4 fs/btrfs/disk-io.c:4718 btrfs_put_super+0x70/0x80 fs/btrfs/super.c:397 generic_shutdown_super+0x130/0x328 fs/super.c:501 kill_anon_super+0x4c/0x74 fs/super.c:1128 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2449 deactivate_locked_super+0xac/0x124 fs/super.c:332 deactivate_super+0xf0/0x110 fs/super.c:363 cleanup_mnt+0x394/0x41c fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0x240/0x2f0 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: 91210000 f0002b22 912d0042 97fff925 (d4210000) ---[ end trace 0000000000000000 ]---