watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [swapper/1:0] Modules linked in: irq event stamp: 56239 hardirqs last enabled at (56239): [] default_idle+0x1c/0x360 arch/x86/kernel/process.c:580 hardirqs last disabled at (56238): [] do_idle+0x145/0x760 kernel/sched/idle.c:250 softirqs last enabled at (56228): [] __do_softirq+0x6cd/0x98c kernel/softirq.c:319 softirqs last disabled at (56213): [] invoke_softirq kernel/softirq.c:373 [inline] softirqs last disabled at (56213): [] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0-rc8+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:list_empty include/linux/list.h:268 [inline] RIP: 0010:hhf_dequeue+0x58/0xa20 net/sched/sch_hhf.c:427 Code: 48 c1 e8 03 4c 01 e0 48 89 45 c0 49 8d 85 90 03 00 00 48 89 45 c8 48 c1 e8 03 48 89 45 b8 e8 2f 0a ac fb 48 8b 45 c0 80 38 00 <0f> 85 a8 07 00 00 48 8b 75 d0 49 8b 85 80 03 00 00 49 89 f6 48 39 RSP: 0018:ffff8880ae909488 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffffed1013a30108 RBX: ffff88809d1807b8 RCX: ffffffff85c670f9 RDX: 0000000000000100 RSI: ffffffff85c66ad1 RDI: ffff88809d1807c0 RBP: ffff8880ae9094d8 R08: ffff8880a98c6340 R09: 0000000000000000 R10: fffffbfff134afaf R11: ffff8880a98c6340 R12: dffffc0000000000 R13: ffff88809d1804c0 R14: ffff88809d180858 R15: ffff88809d180850 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffb5b433140 CR3: 00000000a909d000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dequeue_skb net/sched/sch_generic.c:258 [inline] qdisc_restart net/sched/sch_generic.c:361 [inline] __qdisc_run+0x1e7/0x19d0 net/sched/sch_generic.c:379 __dev_xmit_skb net/core/dev.c:3533 [inline] __dev_queue_xmit+0x16f1/0x3650 net/core/dev.c:3838 dev_queue_xmit+0x18/0x20 net/core/dev.c:3902 neigh_resolve_output net/core/neighbour.c:1490 [inline] neigh_resolve_output+0x5a5/0x970 net/core/neighbour.c:1470 neigh_output include/net/neighbour.h:511 [inline] ip6_finish_output2+0x1034/0x2520 net/ipv6/ip6_output.c:116 __ip6_finish_output+0x444/0xa50 net/ipv6/ip6_output.c:142 ip6_finish_output+0x38/0x1f0 net/ipv6/ip6_output.c:152 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x235/0x7c0 net/ipv6/ip6_output.c:175 dst_output include/net/dst.h:436 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] ndisc_send_skb+0xf29/0x1450 net/ipv6/ndisc.c:504 ndisc_send_rs+0x134/0x6d0 net/ipv6/ndisc.c:698 addrconf_rs_timer+0x30f/0x680 net/ipv6/addrconf.c:3879 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1322 expire_timers kernel/time/timer.c:1366 [inline] __run_timers kernel/time/timer.c:1685 [inline] __run_timers kernel/time/timer.c:1653 [inline] run_timer_softirq+0x697/0x17a0 kernel/time/timer.c:1698 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:537 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 Code: 88 63 6e fa eb 8a 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 24 0b 4a 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 14 0b 4a 00 fb f4 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 2e 23 22 fa e8 f9 RSP: 0018:ffff8880a98dfd68 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff11a5e8d RBX: ffff8880a98c6340 RCX: 1ffffffff134b5ee RDX: dffffc0000000000 RSI: ffffffff8177f15e RDI: ffffffff873e150c RBP: ffff8880a98dfd98 R08: ffff8880a98c6340 R09: ffffed1015318c69 R10: ffffed1015318c68 R11: ffff8880a98c6347 R12: dffffc0000000000 R13: ffffffff89a57d78 R14: 0000000000000000 R15: 0000000000000001 arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:571 default_idle_call+0x84/0xb0 kernel/sched/idle.c:94 cpuidle_idle_call kernel/sched/idle.c:154 [inline] do_idle+0x413/0x760 kernel/sched/idle.c:263 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:354 start_secondary+0x315/0x430 arch/x86/kernel/smpboot.c:264 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:241 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60