assertion failed: list_empty(&fs_info->delayed_iputs), in fs/btrfs/disk-io.c:4473 ------------[ cut here ]------------ kernel BUG at fs/btrfs/ctree.h:3495! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4027 Comm: syz-executor Not tainted 5.15.171-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:3494 lr : assertfail+0x28/0x2c fs/btrfs/ctree.h:3494 sp : ffff8000200077f0 x29: ffff8000200077f0 x28: 1fffe0001d8b925b x27: dfff800000000000 x26: ffff700004000f04 x25: 1fffe0001d8b91f4 x24: 0000000000000000 x23: 1fffe0001d8b933a x22: ffff0000ec5c8f98 x21: ffff0000ec5c8d28 x20: ffff0000ec5c8010 x19: ffff0000ec5c8000 x18: 0000000000000001 x17: 0000000000000000 x16: ffff800011ac0310 x15: 00000000ffffffff x14: ffff0000c9680000 x13: 0000000000000001 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : e8cb5e16f111e400 x8 : e8cb5e16f111e400 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800020006f58 x4 : ffff800014bb05e0 x3 : ffff80000a983ebc x2 : ffff0001b41acd10 x1 : 0000000100000000 x0 : 0000000000000051 Call trace: assertfail+0x28/0x2c fs/btrfs/ctree.h:3494 close_ctree+0x758/0x87c fs/btrfs/disk-io.c:4473 btrfs_put_super+0x40/0x50 fs/btrfs/super.c:340 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_anon_super+0x4c/0x74 fs/super.c:1089 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2391 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0x108/0x128 fs/super.c:366 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150 task_work_run+0x130/0x1e4 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: 913c8000 b00029a2 91188042 97fff928 (d4210000) ---[ end trace b00ebd187cec18d5 ]---