BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Workqueue: events_unbound nsim_dev_trap_report_work
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b40/0x6544 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 _raw_spin_lock_nested+0x5c/0x78 kernel/locking/spinlock.c:378
 raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline]
 raw_spin_rq_lock kernel/sched/sched.h:1355 [inline]
 rq_lock kernel/sched/sched.h:1645 [inline]
 ttwu_queue kernel/sched/core.c:3902 [inline]
 try_to_wake_up+0x3f0/0xc74 kernel/sched/core.c:4227
 wake_up_process+0x18/0x24 kernel/sched/core.c:4361
 swake_up_locked kernel/sched/swait.c:29 [inline]
 swake_up_one+0x70/0x134 kernel/sched/swait.c:52
 swake_up_one_online+0xe8/0x1e0 kernel/rcu/tree.c:1082
 __rcu_report_exp_rnp+0x5e8/0x79c kernel/rcu/tree_exp.h:202
 rcu_report_exp_cpu_mult+0xec/0x4a0 kernel/rcu/tree_exp.h:251
 rcu_report_exp_rdp kernel/rcu/tree_exp.h:260 [inline]
 rcu_preempt_deferred_qs_irqrestore+0x158/0xd3c kernel/rcu/tree_plugin.h:506
 rcu_preempt_deferred_qs kernel/rcu/tree_plugin.h:607 [inline]
 rcu_note_context_switch+0x25c/0x1064 kernel/rcu/tree_plugin.h:344
 __schedule+0x2a4/0x1b18 kernel/sched/core.c:6460
 preempt_schedule_common+0xec/0x1a0 kernel/sched/core.c:6730
 preempt_schedule+0x64/0x84 kernel/sched/core.c:6754
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x80/0x84 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:823 [inline]
 nsim_dev_trap_report_work+0x89c/0x984 drivers/net/netdevsim/dev.c:851
 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292
 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850