BUG: MAX_LOCKDEP_ENTRIES too low! turning off the locking correctness validator. CPU: 1 PID: 3998 Comm: kworker/1:8 Not tainted 5.7.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events linkwatch_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x188/0x20d lib/dump_stack.c:118 alloc_list_entry.cold+0x11/0x18 kernel/locking/lockdep.c:1329 add_lock_to_list kernel/locking/lockdep.c:1350 [inline] check_prev_add kernel/locking/lockdep.c:2567 [inline] check_prevs_add kernel/locking/lockdep.c:2620 [inline] validate_chain kernel/locking/lockdep.c:3237 [inline] __lock_acquire+0x2f26/0x4c50 kernel/locking/lockdep.c:4355 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4934 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:353 [inline] __netif_tx_lock include/linux/netdevice.h:4014 [inline] netif_tx_lock include/linux/netdevice.h:4092 [inline] netif_tx_lock_bh include/linux/netdevice.h:4101 [inline] dev_watchdog_down net/sched/sch_generic.c:475 [inline] dev_deactivate_many+0x294/0xba0 net/sched/sch_generic.c:1201 dev_deactivate+0xf8/0x1c0 net/sched/sch_generic.c:1233 linkwatch_do_dev+0x151/0x180 net/core/link_watch.c:157 __linkwatch_run_queue+0x1f6/0x640 net/core/link_watch.c:204 linkwatch_event+0x4a/0x60 net/core/link_watch.c:243 process_one_work+0x965/0x16a0 kernel/workqueue.c:2268 worker_thread+0x96/0xe20 kernel/workqueue.c:2414 kthread+0x388/0x470 kernel/kthread.c:268 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352