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:4707 ------------[ cut here ]------------ kernel BUG at fs/btrfs/ctree.h:3717! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3892 Comm: syz-executor Not tainted 6.1.111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:assertfail+0x18/0x1a fs/btrfs/ctree.h:3717 Code: c0 b1 4d 8b 48 c7 c2 e0 ae 4d 8b e8 17 e4 ff ff 0f 0b 89 f1 48 89 fe 48 c7 c7 40 e2 4d 8b 48 c7 c2 b0 b3 4d 8b e8 fd e3 ff ff <0f> 0b 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec RSP: 0018:ffffc90004f97b38 EFLAGS: 00010246 RAX: 0000000000000051 RBX: ffff88805c00cd58 RCX: ce2a30f75f5b8400 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90004f97ce0 R08: ffffffff816e4eac R09: fffff520009f2f09 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88805c00c010 R13: ffff88805c00c000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00005555939c5500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f01cff8 CR3: 0000000054c52000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: close_ctree+0x830/0xc35 fs/btrfs/disk-io.c:4707 generic_shutdown_super+0x130/0x340 fs/super.c:501 kill_anon_super+0x37/0x60 fs/super.c:1128 btrfs_kill_super+0x3d/0x50 fs/btrfs/super.c:2449 deactivate_locked_super+0xa0/0x110 fs/super.c:332 cleanup_mnt+0x490/0x520 fs/namespace.c:1186 task_work_run+0x246/0x300 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fdc00f7f327 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 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 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffe1b0ebac8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fdc00ff0134 RCX: 00007fdc00f7f327 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1b0ebb80 RBP: 00007ffe1b0ebb80 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe1b0ecc00 R13: 00007fdc00ff0134 R14: 0000000000027da0 R15: 00007ffe1b0ecc40 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:assertfail+0x18/0x1a fs/btrfs/ctree.h:3717 Code: c0 b1 4d 8b 48 c7 c2 e0 ae 4d 8b e8 17 e4 ff ff 0f 0b 89 f1 48 89 fe 48 c7 c7 40 e2 4d 8b 48 c7 c2 b0 b3 4d 8b e8 fd e3 ff ff <0f> 0b 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec RSP: 0018:ffffc90004f97b38 EFLAGS: 00010246 RAX: 0000000000000051 RBX: ffff88805c00cd58 RCX: ce2a30f75f5b8400 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90004f97ce0 R08: ffffffff816e4eac R09: fffff520009f2f09 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88805c00c010 R13: ffff88805c00c000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00005555939c5500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007faa07108178 CR3: 0000000054c52000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400