XFS (loop2): Unmounting Filesystem
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WARNING: CPU: 1 PID: 8173 at kernel/workqueue.c:4212 destroy_workqueue.cold+0x38/0x7d kernel/workqueue.c:4212
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 8173 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:destroy_workqueue.cold+0x38/0x7d kernel/workqueue.c:4212
Code: c6 00 00 0f 0b 48 8b 7c 24 08 e8 95 92 25 00 e8 d0 b6 4b f9 e9 de c2 4b f9 e8 16 95 6f f9 48 c7 c7 80 3f 69 88 e8 75 c6 00 00 <0f> 0b e8 03 95 6f f9 48 8b 7c 24 08 e8 69 92 25 00 e8 a4 b6 4b f9
RSP: 0018:ffff888078ec7cc8 EFLAGS: 00010282
RAX: 0000000000000024 RBX: 0000000000000002 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed100f1d8f8b
RBP: 000000000000000f R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88809fa45280
R13: dffffc0000000000 R14: ffffe8ffffca6c00 R15: 0000000000000000
 xfs_destroy_mount_workqueues+0xef/0x1c0 fs/xfs/xfs_super.c:903
 xfs_fs_put_super+0xc4/0x130 fs/xfs/xfs_super.c:1779
 generic_shutdown_super+0x144/0x370 fs/super.c:456
 kill_block_super+0x97/0xf0 fs/super.c:1185
 deactivate_locked_super+0x94/0x160 fs/super.c:329
 deactivate_super+0x174/0x1a0 fs/super.c:360
 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fb370fbe567
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 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 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd9ff1e958 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb370fbe567
RDX: 00007ffd9ff1ea2b RSI: 000000000000000a RDI: 00007ffd9ff1ea20
RBP: 00007ffd9ff1ea20 R08: 00000000ffffffff R09: 00007ffd9ff1e7f0
R10: 00005555566da873 R11: 0000000000000246 R12: 00007fb371017b24
R13: 00007ffd9ff1fae0 R14: 00005555566da810 R15: 00007ffd9ff1fb20
Kernel Offset: disabled
Rebooting in 86400 seconds..