BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 21826 Comm: syz.1.1542 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 register_lock_class+0x2e8/0x320 kernel/locking/lockdep.c:1332
 __lock_acquire+0x99/0xd20 kernel/locking/lockdep.c:5112
 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868
 touch_wq_lockdep_map+0xcb/0x180 kernel/workqueue.c:3936
 __flush_workqueue+0x121/0x14b0 kernel/workqueue.c:3978
 drain_workqueue+0xd3/0x390 kernel/workqueue.c:4142
 destroy_workqueue+0xbb/0xc70 kernel/workqueue.c:5901
 btrfs_destroy_workqueue+0x45/0x240 fs/btrfs/async-thread.c:358
 btrfs_stop_all_workers+0x218/0x2a0 fs/btrfs/disk-io.c:1783
 open_ctree+0x13e6/0x3cc0 fs/btrfs/disk-io.c:3677
 btrfs_fill_super fs/btrfs/super.c:987 [inline]
 btrfs_get_tree_super fs/btrfs/super.c:1952 [inline]
 btrfs_get_tree_subvol fs/btrfs/super.c:2089 [inline]
 btrfs_get_tree+0xf55/0x1820 fs/btrfs/super.c:2123
 vfs_get_tree+0x92/0x2b0 fs/super.c:1752
 do_new_mount+0x2a2/0xa30 fs/namespace.c:3750
 do_mount fs/namespace.c:4078 [inline]
 __do_sys_mount fs/namespace.c:4278 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4255
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb29b03066a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb299295e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb299295ef0 RCX: 00007fb29b03066a
RDX: 0000200000000000 RSI: 00002000000015c0 RDI: 00007fb299295eb0
RBP: 0000200000000000 R08: 00007fb299295ef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00002000000015c0
R13: 00007fb299295eb0 R14: 000000000000559e R15: 0000200000001600
 </TASK>
BTRFS error (device loop1): open_ctree failed: -4