BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 PID: 1527 Comm: kworker/u5:0 Not tainted 5.5.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: hci3 hci_power_on Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x12d/0x187 lib/dump_stack.c:118 add_chain_cache kernel/locking/lockdep.c:2841 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:2915 [inline] validate_chain kernel/locking/lockdep.c:2936 [inline] __lock_acquire.cold.65+0x18/0x385 kernel/locking/lockdep.c:3955 lock_acquire+0x194/0x410 kernel/locking/lockdep.c:4485 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x30/0x40 kernel/locking/spinlock.c:223 hci_leds_update_powered+0x7c/0x160 net/bluetooth/leds.c:30 hci_dev_do_close+0x108/0xe30 net/bluetooth/hci_core.c:1687 hci_power_on+0x163/0x4d0 net/bluetooth/hci_core.c:2211 process_one_work+0x856/0x1630 kernel/workqueue.c:2264 worker_thread+0x85/0xb60 kernel/workqueue.c:2410 kthread+0x331/0x3f0 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352