BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 6383 Comm: kworker/u8:18 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: btrfs-endio-meta simple_end_io_work Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 register_lock_class+0x2a9/0x2e0 kernel/locking/lockdep.c:1332 __lock_acquire+0xae/0x2cf0 kernel/locking/lockdep.c:5112 lock_acquire+0x107/0x340 kernel/locking/lockdep.c:5868 process_one_work kernel/workqueue.c:3232 [inline] process_scheduled_works+0x9c9/0x1770 kernel/workqueue.c:3340 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246