BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 13 Comm: kworker/u32:1 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: events_unbound linkwatch_event Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 register_lock_class+0x419/0x4c0 kernel/locking/lockdep.c:1332 __lock_acquire+0x9f/0x1ce0 kernel/locking/lockdep.c:5112 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] dev_reset_queue+0xa9/0x1d0 net/sched/sch_generic.c:1312 netdev_for_each_tx_queue include/linux/netdevice.h:2660 [inline] dev_deactivate_many+0x4e5/0xd50 net/sched/sch_generic.c:1378 dev_deactivate+0xf8/0x1c0 net/sched/sch_generic.c:1401 linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:184 __linkwatch_run_queue+0x2a7/0x8a0 net/core/link_watch.c:244 linkwatch_event+0x8f/0xc0 net/core/link_watch.c:304 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c2/0x780 kernel/kthread.c:463 ret_from_fork+0x56a/0x730 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): Released all slaves bond1 (unregistering): Released all slaves bond2 (unregistering): Released all slaves bond3 (unregistering): Released all slaves bond4 (unregistering): (slave bond5): Releasing backup interface bond4 (unregistering): Released all slaves bond5 (unregistering): Released all slaves bond6 (unregistering): (slave bond7): Releasing backup interface bond6 (unregistering): Released all slaves bond7 (unregistering): Released all slaves bond8 (unregistering): (slave bond9): Releasing backup interface bond8 (unregistering): Released all slaves bond9 (unregistering): Released all slaves bond10 (unregistering): (slave bond11): Releasing backup interface bond10 (unregistering): Released all slaves bond11 (unregistering): Released all slaves bond12 (unregistering): (slave bond13): Releasing backup interface bond12 (unregistering): Released all slaves bond13 (unregistering): Released all slaves bond14 (unregistering): (slave bond15): Releasing backup interface bond14 (unregistering): Released all slaves bond15 (unregistering): Released all slaves bond16 (unregistering): (slave bond17): Releasing backup interface bond16 (unregistering): Released all slaves bond17 (unregistering): Released all slaves bond18 (unregistering): (slave bond19): Releasing backup interface bond18 (unregistering): Released all slaves bond19 (unregistering): Released all slaves bond20 (unregistering): (slave bond21): Releasing backup interface bond20 (unregistering): Released all slaves bond21 (unregistering): Released all slaves bond22 (unregistering): (slave bond23): Releasing backup interface bond22 (unregistering): Released all slaves bond23 (unregistering): Released all slaves bond24 (unregistering): (slave bond25): Releasing backup interface bond24 (unregistering): Released all slaves bond25 (unregistering): Released all slaves bond26 (unregistering): (slave bond27): Releasing backup interface bond26 (unregistering): Released all slaves bond27 (unregistering): Released all slaves bond28 (unregistering): (slave bond29): Releasing backup interface bond28 (unregistering): Released all slaves bond29 (unregistering): Released all slaves bond30 (unregistering): (slave bond31): Releasing backup interface bond30 (unregistering): Released all slaves bond31 (unregistering): Released all slaves bond32 (unregistering): (slave bond33): Releasing backup interface bond32 (unregistering): Released all slaves bond33 (unregistering): Released all slaves bond34 (unregistering): (slave bond35): Releasing backup interface bond34 (unregistering): Released all slaves bond35 (unregistering): Released all slaves bond36 (unregistering): Released all slaves bond37 (unregistering): Released all slaves tipc: Left network mode hsr_slave_0: left promiscuous mode hsr_slave_1: left promiscuous mode batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_1 veth1_vlan: left allmulticast mode pimreg3 (unregistering): left allmulticast mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed