[info] Using makefile-style concurrent boot in runlevel 2. [ 50.920070][ T26] audit: type=1800 audit(1568369413.372:21): pid=8951 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 50.969126][ T26] audit: type=1800 audit(1568369413.382:22): pid=8951 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.228' (ECDSA) to the list of known hosts. syzkaller login: [ 252.645812][ T9104] IPVS: ftp: loaded support on port[0] = 21 [ 252.679621][ T9104] chnl_net:caif_netlink_parms(): no params data found [ 252.698879][ T9104] bridge0: port 1(bridge_slave_0) entered blocking state [ 252.706006][ T9104] bridge0: port 1(bridge_slave_0) entered disabled state [ 252.713515][ T9104] device bridge_slave_0 entered promiscuous mode [ 252.720484][ T9104] bridge0: port 2(bridge_slave_1) entered blocking state [ 252.727596][ T9104] bridge0: port 2(bridge_slave_1) entered disabled state [ 252.735024][ T9104] device bridge_slave_1 entered promiscuous mode [ 252.746595][ T9104] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 252.756874][ T9104] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 252.770884][ T9104] team0: Port device team_slave_0 added [ 252.777133][ T9104] team0: Port device team_slave_1 added [ 252.822001][ T9104] device hsr_slave_0 entered promiscuous mode [ 252.880954][ T9104] device hsr_slave_1 entered promiscuous mode [ 252.964843][ T9104] bridge0: port 2(bridge_slave_1) entered blocking state [ 252.971936][ T9104] bridge0: port 2(bridge_slave_1) entered forwarding state [ 252.979172][ T9104] bridge0: port 1(bridge_slave_0) entered blocking state [ 252.987100][ T9104] bridge0: port 1(bridge_slave_0) entered forwarding state [ 253.007625][ T9104] 8021q: adding VLAN 0 to HW filter on device bond0 [ 253.017654][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 253.036886][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 253.044751][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 253.052771][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 253.062209][ T9104] 8021q: adding VLAN 0 to HW filter on device team0 [ 253.071532][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 253.079822][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 253.086899][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 253.095498][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 253.103821][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 253.111482][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 253.124305][ T9108] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 253.132758][ T9108] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 253.142302][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 253.153859][ T9104] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 253.164546][ T9104] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 253.175840][ T9108] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 253.183998][ T9108] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 253.192166][ T9108] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 253.204801][ T9104] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 358.240720][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 358.247355][ C1] rcu: 1-...!: (10499 ticks this GP) idle=80e/0/0x3 softirq=7835/7835 fqs=9 [ 358.256239][ C1] (t=10501 jiffies g=6513 q=219) [ 358.261251][ C1] rcu: rcu_preempt kthread starved for 10484 jiffies! g6513 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 358.273371][ C1] rcu: RCU grace-period kthread stack dump: [ 358.279266][ C1] rcu_preempt I29128 10 2 0x80004000 [ 358.285679][ C1] Call Trace: [ 358.289065][ C1] __schedule+0x877/0xc50 [ 358.293437][ C1] schedule+0x131/0x1e0 [ 358.297575][ C1] schedule_timeout+0x14f/0x240 [ 358.302465][ C1] ? run_local_timers+0x120/0x120 [ 358.307495][ C1] rcu_gp_kthread+0xef8/0x1790 [ 358.312265][ C1] kthread+0x332/0x350 [ 358.316373][ C1] ? rcu_report_qs_rsp+0x150/0x150 [ 358.321591][ C1] ? kthread_blkcg+0xe0/0xe0 [ 358.326193][ C1] ret_from_fork+0x24/0x30 [ 358.330645][ C1] NMI backtrace for cpu 1 [ 358.334959][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0-rc8+ #0 [ 358.342051][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 358.352163][ C1] Call Trace: [ 358.355429][ C1] [ 358.358370][ C1] dump_stack+0x1d8/0x2f8 [ 358.362686][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 358.367515][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 358.373852][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 358.379954][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 358.385920][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 358.391794][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 358.396890][ C1] rcu_sched_clock_irq+0xb95/0x16d0 [ 358.402123][ C1] ? trace_hardirqs_off+0x74/0x80 [ 358.407133][ C1] update_process_times+0x134/0x190 [ 358.412358][ C1] tick_sched_timer+0x263/0x420 [ 358.417192][ C1] ? tick_setup_sched_timer+0x2c0/0x2c0 [ 358.422723][ C1] __hrtimer_run_queues+0x403/0x850 [ 358.427963][ C1] hrtimer_interrupt+0x38c/0xda0 [ 358.432894][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 358.438426][ C1] apic_timer_interrupt+0xf/0x20 [ 358.443409][ C1] RIP: 0010:hhf_dequeue+0x529/0xaa0 [ 358.448594][ C1] Code: 2d 2c 67 fb 4c 8b 7d a0 48 8b 7d b0 48 89 fb 48 c1 eb 03 42 80 3c 23 00 74 09 e8 62 27 a0 fb 48 8b 7d b0 4c 8b 37 48 8b 7d c0 <4c> 89 f6 48 8b 55 a8 e8 eb 61 47 fd 84 c0 74 75 e8 f2 2b 67 fb 42 [ 358.468309][ C1] RSP: 0018:ffff8880aeb08f98 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 358.476701][ C1] RAX: 1ffff11014351222 RBX: 1ffff11014351223 RCX: ffff8880a98bc340 [ 358.484668][ C1] RDX: 0000000000000302 RSI: 0000000000000000 RDI: ffff8880a1a89078 [ 358.492709][ C1] RBP: ffff8880aeb09040 R08: ffffffff860c5d6a R09: 0000000000000000 [ 358.500711][ C1] R10: fffffbfff117be8d R11: 0000000000000000 R12: dffffc0000000000 [ 358.508672][ C1] R13: ffff8880a1a88d80 R14: ffff8880a1a89110 R15: ffff8880a1a89100 [ 358.516641][ C1] ? apic_timer_interrupt+0xa/0x20 [ 358.521739][ C1] ? hhf_dequeue+0x15a/0xaa0 [ 358.526315][ C1] ? hhf_dequeue+0x490/0xaa0 [ 358.530936][ C1] ? hhf_enqueue+0x19dc/0x2110 [ 358.535736][ C1] __qdisc_run+0x217/0x1b30 [ 358.540256][ C1] ? dev_queue_xmit+0x17/0x20 [ 358.544975][ C1] __dev_queue_xmit+0x1161/0x3020 [ 358.549984][ C1] ? _raw_spin_unlock_irqrestore+0xbc/0xe0 [ 358.555811][ C1] ? ebt_do_table+0x2614/0x2700 [ 358.560651][ C1] dev_queue_xmit+0x17/0x20 [ 358.565302][ C1] br_dev_queue_push_xmit+0x551/0x650 [ 358.570662][ C1] br_nf_dev_queue_xmit+0x312/0x1590 [ 358.575965][ C1] br_nf_post_routing+0xa5f/0xea0 [ 358.580974][ C1] ? br_nf_forward_arp+0xab0/0xab0 [ 358.586137][ C1] nf_hook_slow+0xc8/0x210 [ 358.590537][ C1] nf_hook+0x23a/0x310 [ 358.594622][ C1] ? fdb_add_hw_addr+0x220/0x220 [ 358.599608][ C1] br_forward_finish+0x7a/0xc0 [ 358.604400][ C1] ? fdb_add_hw_addr+0x220/0x220 [ 358.609327][ C1] br_nf_forward_finish+0x8f4/0xc80 [ 358.614503][ C1] ? rcu_lock_release+0x26/0x30 [ 358.619349][ C1] ? br_dev_queue_push_xmit+0x650/0x650 [ 358.624879][ C1] br_nf_forward_ip+0xed4/0x13f0 [ 358.629889][ C1] ? br_nf_pre_routing+0x1380/0x1380 [ 358.635155][ C1] nf_hook_slow+0xc8/0x210 [ 358.639593][ C1] nf_hook+0x23a/0x310 [ 358.643649][ C1] ? br_dev_queue_push_xmit+0x650/0x650 [ 358.649220][ C1] __br_forward+0x39e/0x720 [ 358.653706][ C1] ? br_dev_queue_push_xmit+0x650/0x650 [ 358.659238][ C1] br_flood+0x7af/0x840 [ 358.663428][ C1] br_handle_frame_finish+0xf37/0x1370 [ 358.668873][ C1] ? nf_hook_slow+0x17d/0x210 [ 358.673569][ C1] br_nf_hook_thresh+0x306/0x390 [ 358.678493][ C1] ? brport_get_ownership+0x80/0x80 [ 358.683676][ C1] br_nf_pre_routing_finish_ipv6+0x8ac/0xb30 [ 358.689679][ C1] ? brport_get_ownership+0x80/0x80 [ 358.694866][ C1] br_nf_pre_routing_ipv6+0x2ab/0x350 [ 358.701611][ C1] br_nf_pre_routing+0x6ca/0x1380 [ 358.706658][ C1] ? brnf_device_event+0x1f0/0x1f0 [ 358.711754][ C1] br_handle_frame+0x7d9/0xeb0 [ 358.716504][ C1] ? brport_get_ownership+0x80/0x80 [ 358.721683][ C1] ? br_pass_frame_up+0x4c0/0x4c0 [ 358.726794][ C1] __netif_receive_skb_core+0x1a7d/0x3470 [ 358.732508][ C1] __netif_receive_skb+0xc5/0x370 [ 358.737519][ C1] process_backlog+0x4d8/0x910 [ 358.742273][ C1] net_rx_action+0x5ef/0xfd0 [ 358.746859][ C1] __do_softirq+0x333/0x7c4 [ 358.751404][ C1] ? irq_exit+0x227/0x230 [ 358.755720][ C1] irq_exit+0x227/0x230 [ 358.759862][ C1] smp_apic_timer_interrupt+0x113/0x280 [ 358.765409][ C1] apic_timer_interrupt+0xf/0x20 [ 358.770391][ C1] [ 358.773331][ C1] RIP: 0010:native_safe_halt+0xe/0x10 [ 358.778697][ C1] Code: 30 fa eb ae 89 d9 80 e1 07 80 c1 03 38 c1 7c ba 48 89 df e8 74 a1 30 fa eb b0 90 90 e9 07 00 00 00 0f 00 2d 96 a0 46 00 fb f4 90 e9 07 00 00 00 0f 00 2d 86 a0 46 00 f4 c3 90 90 55 48 89 e5 [ 358.798295][ C1] RSP: 0018:ffff8880a98c7e10 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 358.806730][ C1] RAX: 1ffffffff11150f3 RBX: ffff8880a98bc340 RCX: dffffc0000000000 [ 358.814685][ C1] RDX: 0000000000000000 RSI: ffffffff812b7a1a RDI: ffffffff877be46a [ 358.822679][ C1] RBP: ffff8880a98c7e18 R08: ffffffff81790e74 R09: ffffed1015317869 [ 358.830725][ C1] R10: ffffed1015317869 R11: 0000000000000000 R12: dffffc0000000000 [ 358.838702][ C1] R13: 1ffff11015317868 R14: dffffc0000000000 R15: 0000000000000001 [ 358.846670][ C1] ? trace_hardirqs_on+0x34/0x80 [ 358.851653][ C1] ? arch_cpu_idle+0xa/0x10 [ 358.856139][ C1] ? default_idle+0x1a/0x70 [ 358.860627][ C1] ? default_idle+0x50/0x70 [ 358.865171][ C1] arch_cpu_idle+0xa/0x10 [ 358.869490][ C1] default_idle_call+0x59/0xa0 [ 358.874291][ C1] do_idle+0x140/0x6d0 [ 358.878348][ C1] cpu_startup_entry+0x25/0x30 [ 358.883108][ C1] start_secondary+0x3a5/0x430 [ 358.887875][ C1] secondary_startup_64+0xa4/0xb0