IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready 8021q: adding VLAN 0 to HW filter on device batadv0 rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-...!: (10500 ticks this GP) idle=d2e/1/0x4000000000000004 softirq=15588/15588 fqs=0 rcu: (t=10500 jiffies g=4949 q=101) rcu: rcu_preempt kthread starved for 10500 jiffies! g4949 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 rcu: RCU grace-period kthread stack dump: rcu_preempt I29504 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3474 schedule+0x92/0x1c0 kernel/sched/core.c:3518 schedule_timeout+0x4db/0xfc0 kernel/time/timer.c:1804 rcu_gp_kthread+0xd5c/0x2190 kernel/rcu/tree.c:2202 kthread+0x354/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 NMI backtrace for cpu 1 CPU: 1 PID: 7403 Comm: syz-executor377 Not tainted 4.19.71 #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+0x172/0x1f0 lib/dump_stack.c:113 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x189/0x1d5 kernel/rcu/tree.c:1340 print_cpu_stall kernel/rcu/tree.c:1478 [inline] check_cpu_stall kernel/rcu/tree.c:1550 [inline] __rcu_pending kernel/rcu/tree.c:3293 [inline] rcu_pending kernel/rcu/tree.c:3336 [inline] rcu_check_callbacks.cold+0x5e3/0xd90 kernel/rcu/tree.c:2682 update_process_times+0x32/0x80 kernel/time/timer.c:1636 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:164 tick_sched_timer+0x47/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x33b/0xdc0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline] smp_apic_timer_interrupt+0x111/0x550 arch/x86/kernel/apic/apic.c:1092 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893 RIP: 0010:__list_del_entry_valid+0x13/0xf5 lib/list_debug.c:42 Code: 8b 75 e8 eb 9f 48 89 f7 48 89 75 e8 e8 26 28 7c fe 48 8b 75 e8 eb b2 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 56 49 89 fe <48> 83 c7 08 48 89 fa 41 55 48 c1 ea 03 41 54 80 3c 02 00 0f 85 a1 RSP: 0000:ffff8880ae907570 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff888097afb938 RCX: ffffffff858e8489 RDX: 0000000000000000 RSI: ffffffff858e893b RDI: ffff888097afb938 RBP: ffff8880ae907578 R08: ffff8880985f6580 R09: 0000000000000008 R10: ffff8880985f6f40 R11: 0000000091bbf3c9 R12: dffffc0000000000 R13: ffff888097afb680 R14: ffff888097afb938 R15: 0000000000000000 __list_del_entry include/linux/list.h:117 [inline] list_move_tail include/linux/list.h:182 [inline] hhf_dequeue+0x5aa/0xa00 net/sched/sch_hhf.c:438 dequeue_skb net/sched/sch_generic.c:277 [inline] qdisc_restart net/sched/sch_generic.c:380 [inline] __qdisc_run+0x1e7/0x1960 net/sched/sch_generic.c:398 __dev_xmit_skb net/core/dev.c:3501 [inline] __dev_queue_xmit+0x165c/0x2fe0 net/core/dev.c:3811 dev_queue_xmit+0x18/0x20 net/core/dev.c:3876 neigh_resolve_output net/core/neighbour.c:1369 [inline] neigh_resolve_output+0x5b7/0x980 net/core/neighbour.c:1349 neigh_output include/net/neighbour.h:501 [inline] ip6_finish_output2+0xb7f/0x2550 net/ipv6/ip6_output.c:120 ip6_finish_output+0x574/0xbe0 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip6_output+0x235/0x7c0 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:447 [inline] NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] mld_sendpack+0x9d3/0xeb0 net/ipv6/mcast.c:1683 mld_send_cr net/ipv6/mcast.c:1979 [inline] mld_ifc_timer_expire+0x449/0x8a0 net/ipv6/mcast.c:2478 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers kernel/time/timer.c:1682 [inline] __run_timers kernel/time/timer.c:1650 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1695 __do_softirq+0x25c/0x921 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893 RIP: 0010:PageTail include/linux/page-flags.h:151 [inline] RIP: 0010:page_cache_get_speculative include/linux/pagemap.h:195 [inline] RIP: 0010:filemap_map_pages+0x40d/0x1130 mm/filemap.c:2663 Code: ff ff ff 48 83 c0 08 48 89 85 e0 fe ff ff 48 c1 e8 03 42 80 3c 28 00 0f 85 d2 0b 00 00 48 8b 85 30 ff ff ff 31 ff 48 8b 58 08 <83> e3 01 48 89 de e8 28 30 e6 ff 48 85 db 0f 85 cb 06 00 00 e8 7a RSP: 0000:ffff88808caa7b18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffffea00023aab40 RBX: ffffea0002140f88 RCX: ffffffff818537c2 RDX: 0000000000000000 RSI: ffffffff818537cf RDI: 0000000000000000 RBP: ffff88808caa7c68 R08: ffff8880985f6580 R09: ffffed1011954f79 R10: ffffed1011954f78 R11: 0000000000000003 R12: ffffea00023aab40 R13: dffffc0000000000 R14: ffff88808caa7c40 R15: ffffea00023aab74 do_fault_around mm/memory.c:3642 [inline] do_read_fault mm/memory.c:3676 [inline] do_fault mm/memory.c:3810 [inline] handle_pte_fault mm/memory.c:4041 [inline] __handle_mm_fault+0x325d/0x3f80 mm/memory.c:4165 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204 RIP: 0033:0x401956 Code: 48 05 bb bb bb 01 48 89 04 24 e8 09 f1 ff ff 89 df e8 6e 07 00 00 bf 00 00 00 40 e8 44 34 04 00 e8 d4 f1 ff ff e8 aa f2 03 00 <85> c0 89 c3 0f 88 ae 02 00 00 74 4e c7 04 24 00 00 00 00 e8 d8 eb RSP: 002b:00007ffd10ebd8c0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000440cda RDX: 0000006ce7cbb96d RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000030d1f R08: 0000000000000001 R09: 0000000001d97880 R10: 0000000001d97b50 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000004032f0 R14: 0000000000000000 R15: 0000000000000000