BTRFS info (device loop7): last unmount of filesystem 24c7a497-3402-47dd-bef8-82358f5f30e0 assertion failed: list_empty(&fs_info->delayed_iputs), in fs/btrfs/disk-io.c:4718 ------------[ cut here ]------------ kernel BUG at fs/btrfs/ctree.h:3715! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9236 Comm: syz-executor Tainted: G W 6.1.121-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:assertfail+0x18/0x1a fs/btrfs/ctree.h:3715 Code: 40 a7 4e 8b 48 c7 c2 60 a4 4e 8b e8 17 e4 ff ff 0f 0b 89 f1 48 89 fe 48 c7 c7 c0 d7 4e 8b 48 c7 c2 30 a9 4e 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:ffffc90003b1fb38 EFLAGS: 00010246 RAX: 0000000000000051 RBX: ffff88802f99cd58 RCX: b2fc695617529900 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90003b1fce0 R08: ffffffff816e6cec R09: fffffbfff2249c6f R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802f99c010 R13: ffff88802f99c000 R14: dffffc0000000000 R15: 0000000000000000 FS: 000055555fa56500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020004280 CR3: 000000005a793000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: close_ctree+0x856/0xc5b fs/btrfs/disk-io.c:4718 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: 0033:0x7f2743787057 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:00007ffc5be6c138 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f2743801894 RCX: 00007f2743787057 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc5be6c1f0 RBP: 00007ffc5be6c1f0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc5be6d270 R13: 00007f2743801894 R14: 00007ffc5be6d2b0 R15: 000000000000011a Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:assertfail+0x18/0x1a fs/btrfs/ctree.h:3715 Code: 40 a7 4e 8b 48 c7 c2 60 a4 4e 8b e8 17 e4 ff ff 0f 0b 89 f1 48 89 fe 48 c7 c7 c0 d7 4e 8b 48 c7 c2 30 a9 4e 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:ffffc90003b1fb38 EFLAGS: 00010246 RAX: 0000000000000051 RBX: ffff88802f99cd58 RCX: b2fc695617529900 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90003b1fce0 R08: ffffffff816e6cec R09: fffffbfff2249c6f R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802f99c010 R13: ffff88802f99c000 R14: dffffc0000000000 R15: 0000000000000000 FS: 000055555fa56500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020004280 CR3: 000000005a793000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400