BUG: MAX_LOCKDEP_ENTRIES too low! turning off the locking correctness validator. CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xbf kernel/locking/spinlock.c:159 debug_object_activate+0x135/0x480 lib/debugobjects.c:636 debug_rcu_head_queue kernel/rcu/rcu.h:176 [inline] __call_rcu kernel/rcu/tree.c:2657 [inline] call_rcu+0x2c/0x7e0 kernel/rcu/tree.c:2744 dst_release net/core/dst.c:179 [inline] dst_release+0x79/0xe0 net/core/dst.c:169 refdst_drop include/net/dst.h:258 [inline] skb_dst_drop include/net/dst.h:270 [inline] __dev_queue_xmit+0x21de/0x30a0 net/core/dev.c:4012 macvlan_queue_xmit drivers/net/macvlan.c:537 [inline] macvlan_start_xmit+0x19d/0x7dd drivers/net/macvlan.c:562 __netdev_start_xmit include/linux/netdevice.h:4533 [inline] netdev_start_xmit include/linux/netdevice.h:4547 [inline] xmit_one net/core/dev.c:3477 [inline] dev_hard_start_xmit+0x1a4/0x9b0 net/core/dev.c:3493 sch_direct_xmit+0x345/0xc20 net/sched/sch_generic.c:313 qdisc_restart net/sched/sch_generic.c:376 [inline] __qdisc_run+0x4d1/0x17b0 net/sched/sch_generic.c:384 qdisc_run include/net/pkt_sched.h:134 [inline] qdisc_run include/net/pkt_sched.h:126 [inline] __dev_xmit_skb net/core/dev.c:3668 [inline] __dev_queue_xmit+0x2115/0x30a0 net/core/dev.c:4021 neigh_resolve_output net/core/neighbour.c:1489 [inline] neigh_resolve_output+0x566/0x930 net/core/neighbour.c:1469 neigh_output include/net/neighbour.h:510 [inline] ip6_finish_output2+0x1091/0x25b0 net/ipv6/ip6_output.c:117 __ip6_finish_output+0x442/0xab0 net/ipv6/ip6_output.c:143 ip6_finish_output+0x34/0x1f0 net/ipv6/ip6_output.c:153 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x239/0x810 net/ipv6/ip6_output.c:176 dst_output include/net/dst.h:435 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] mld_sendpack+0x961/0xdf0 net/ipv6/mcast.c:1682 mld_send_cr net/ipv6/mcast.c:1978 [inline] mld_ifc_timer_expire+0x42e/0x920 net/ipv6/mcast.c:2477 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1405 expire_timers kernel/time/timer.c:1450 [inline] __run_timers kernel/time/timer.c:1774 [inline] __run_timers kernel/time/timer.c:1741 [inline] run_timer_softirq+0x623/0x1600 kernel/time/timer.c:1787 __do_softirq+0x26c/0x9f7 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x192/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:546 [inline] smp_apic_timer_interrupt+0x19e/0x600 arch/x86/kernel/apic/apic.c:1140 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 04 78 58 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d f4 77 58 00 fb f4 cc 41 56 41 55 41 54 55 53 e8 83 f0 90 f9 e8 9e cc c9 fb 0f 1f RSP: 0018:ffffc90000d3fdb8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1329807 RBX: ffff8880a95f0340 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff8880a95f0c04 RBP: dffffc0000000000 R08: ffff8880a95f0340 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffed10152be068 R13: 0000000000000001 R14: ffffffff8a894b40 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:144 [inline] default_idle+0x49/0x350 arch/x86/kernel/process.c:697 cpuidle_idle_call kernel/sched/idle.c:154 [inline] do_idle+0x393/0x690 kernel/sched/idle.c:269 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:361 start_secondary+0x2f8/0x410 arch/x86/kernel/smpboot.c:268 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:242 neighbour: ndisc_cache: neighbor table overflow!