BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 PID: 40 Comm: kworker/u4:2 Not tainted 5.8.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bond498 bond_mii_monitor Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 add_chain_cache kernel/locking/lockdep.c:3063 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:3162 [inline] validate_chain kernel/locking/lockdep.c:3183 [inline] __lock_acquire.cold+0x11/0x3f8 kernel/locking/lockdep.c:4380 lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 rq_lock kernel/sched/sched.h:1261 [inline] __schedule+0x22d/0x1eb0 kernel/sched/core.c:4124 preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:4436 idtentry_exit_cond_resched arch/x86/entry/common.c:663 [inline] idtentry_exit_cond_rcu+0xc0/0xf0 arch/x86/entry/common.c:710 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:587 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:765 [inline] RIP: 0010:lock_acquire+0x270/0xad0 kernel/locking/lockdep.c:4962 Code: 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 f8 06 00 00 48 83 3d ad d0 5a 08 00 0f 84 a6 05 00 00 48 8b 7c 24 08 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 03 44 24 10 48 c7 RSP: 0018:ffffc90000ec7c10 EFLAGS: 00000282 RAX: 1ffffffff1369c10 RBX: ffff8880a916c440 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: 0000000000000282 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8c597bb7 R10: fffffbfff18b2f76 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88809064c138 R14: 0000000000000000 R15: ffff8880a916c440 process_one_work+0x88c/0x1670 kernel/workqueue.c:2244 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 tipc: TX() has been purged, node left! tipc: TX() has been purged, node left! tipc: TX() has been purged, node left!