BTRFS info (device loop4): last unmount of filesystem 395ef67a-297e-477c-816d-cd80a5b93e5d
assertion failed: list_empty(&fs_info->delalloc_roots) :: 0, in fs/btrfs/disk-io.c:4374
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kernel BUG at fs/btrfs/disk-io.c:4374!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5798 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:close_ctree+0xec5/0x1380 fs/btrfs/disk-io.c:4374
Code: 03 31 d2 48 39 d8 0f 94 c2 48 c7 c7 20 c2 2e 8b 48 c7 c6 a0 f1 2e 8b 48 c7 c1 a0 c2 2e 8b 41 b8 16 11 00 00 e8 ec b2 fd ff 90 <0f> 0b e8 74 0e 96 00 48 8b 7c 24 18 be 08 00 00 00 e8 65 4a f8 00
RSP: 0018:ffffc90004ab7b40 EFLAGS: 00010246
RAX: 0000000000000057 RBX: ffff888035da1548 RCX: 9c88008be96be000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004ab7ce0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1017124923 R12: ffff888035da1b58
R13: ffff888035da0000 R14: 1ffff11006bb42a9 R15: ffff888035da0010
FS:  00005555589b9500(0000) GS:ffff888126dee000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005589161ca000 CR3: 000000003f61c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 generic_shutdown_super+0x135/0x2c0 fs/super.c:643
 kill_anon_super+0x3b/0x70 fs/super.c:1289
 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2127
 deactivate_locked_super+0xbc/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1318
 task_work_run+0x1d4/0x260 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:44 [inline]
 exit_to_user_mode_loop+0xef/0x4e0 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x2c1/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1170f60a77
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:00007ffef9331fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f1170fe3d7d RCX: 00007f1170f60a77
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef93320a0
RBP: 00007ffef93320a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef9333130
R13: 00007f1170fe3d7d R14: 000000000003ef8c R15: 00007ffef9333170
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:close_ctree+0xec5/0x1380 fs/btrfs/disk-io.c:4374
Code: 03 31 d2 48 39 d8 0f 94 c2 48 c7 c7 20 c2 2e 8b 48 c7 c6 a0 f1 2e 8b 48 c7 c1 a0 c2 2e 8b 41 b8 16 11 00 00 e8 ec b2 fd ff 90 <0f> 0b e8 74 0e 96 00 48 8b 7c 24 18 be 08 00 00 00 e8 65 4a f8 00
RSP: 0018:ffffc90004ab7b40 EFLAGS: 00010246
RAX: 0000000000000057 RBX: ffff888035da1548 RCX: 9c88008be96be000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004ab7ce0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1017124923 R12: ffff888035da1b58
R13: ffff888035da0000 R14: 1ffff11006bb42a9 R15: ffff888035da0010
FS:  00005555589b9500(0000) GS:ffff888126dee000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005589161ca000 CR3: 000000003f61c000 CR4: 00000000003526f0