[info] Using makefile-style concurrent boot in runlevel 2. [ 51.097001][ T26] audit: type=1800 audit(1568273976.656:21): pid=9013 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 51.144982][ T26] audit: type=1800 audit(1568273976.656:22): pid=9013 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 '10.128.0.206' (ECDSA) to the list of known hosts. syzkaller login: [ 162.897103][ T9165] IPVS: ftp: loaded support on port[0] = 21 [ 162.935315][ T9165] chnl_net:caif_netlink_parms(): no params data found [ 162.953181][ T9165] bridge0: port 1(bridge_slave_0) entered blocking state [ 162.960274][ T9165] bridge0: port 1(bridge_slave_0) entered disabled state [ 162.968280][ T9165] device bridge_slave_0 entered promiscuous mode [ 162.975415][ T9165] bridge0: port 2(bridge_slave_1) entered blocking state [ 162.982527][ T9165] bridge0: port 2(bridge_slave_1) entered disabled state [ 162.989879][ T9165] device bridge_slave_1 entered promiscuous mode [ 163.002101][ T9165] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 163.012189][ T9165] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 163.026632][ T9165] team0: Port device team_slave_0 added [ 163.033240][ T9165] team0: Port device team_slave_1 added [ 163.113263][ T9165] device hsr_slave_0 entered promiscuous mode [ 163.162339][ T9165] device hsr_slave_1 entered promiscuous mode [ 163.236763][ T9165] bridge0: port 2(bridge_slave_1) entered blocking state [ 163.243866][ T9165] bridge0: port 2(bridge_slave_1) entered forwarding state [ 163.251115][ T9165] bridge0: port 1(bridge_slave_0) entered blocking state [ 163.258204][ T9165] bridge0: port 1(bridge_slave_0) entered forwarding state [ 163.279202][ T9165] 8021q: adding VLAN 0 to HW filter on device bond0 [ 163.288457][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 163.297722][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 163.305910][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 163.313359][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 163.322859][ T9165] 8021q: adding VLAN 0 to HW filter on device team0 [ 163.342751][ T2847] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 163.350986][ T2847] bridge0: port 1(bridge_slave_0) entered blocking state [ 163.358049][ T2847] bridge0: port 1(bridge_slave_0) entered forwarding state [ 163.365822][ T2847] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 163.374234][ T2847] bridge0: port 2(bridge_slave_1) entered blocking state [ 163.381246][ T2847] bridge0: port 2(bridge_slave_1) entered forwarding state [ 163.396637][ T9165] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 163.407200][ T9165] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 163.419275][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 163.427811][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 163.436166][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 163.444936][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 163.452974][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 163.460356][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 163.472599][ T9165] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 268.491995][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 268.498691][ C1] rcu: 1-...!: (10499 ticks this GP) idle=90e/1/0x4000000000000002 softirq=9954/9954 fqs=27 [ 268.508905][ C1] (t=10501 jiffies g=7097 q=158) [ 268.513904][ C1] rcu: rcu_preempt kthread starved for 10448 jiffies! g7097 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 268.525146][ C1] rcu: RCU grace-period kthread stack dump: [ 268.531101][ C1] rcu_preempt I29128 10 2 0x80004000 [ 268.537407][ C1] Call Trace: [ 268.540769][ C1] __schedule+0x877/0xc50 [ 268.545119][ C1] schedule+0x131/0x1e0 [ 268.549247][ C1] schedule_timeout+0x14f/0x240 [ 268.554164][ C1] ? run_local_timers+0x120/0x120 [ 268.559181][ C1] rcu_gp_kthread+0xef8/0x1790 [ 268.563959][ C1] kthread+0x332/0x350 [ 268.568000][ C1] ? rcu_report_qs_rsp+0x150/0x150 [ 268.573084][ C1] ? kthread_blkcg+0xe0/0xe0 [ 268.577680][ C1] ret_from_fork+0x24/0x30 [ 268.582130][ C1] NMI backtrace for cpu 1 [ 268.586436][ C1] CPU: 1 PID: 2847 Comm: kworker/1:2 Not tainted 5.3.0-rc8+ #0 [ 268.593950][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 268.604073][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 268.610032][ C1] Call Trace: [ 268.613294][ C1] [ 268.616158][ C1] dump_stack+0x1d8/0x2f8 [ 268.620460][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 268.625294][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 268.631485][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 268.637525][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 268.643479][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 268.649358][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 268.654443][ C1] rcu_sched_clock_irq+0xb95/0x16d0 [ 268.659781][ C1] ? trace_hardirqs_off+0x74/0x80 [ 268.664790][ C1] update_process_times+0x134/0x190 [ 268.669989][ C1] tick_sched_timer+0x263/0x420 [ 268.675953][ C1] ? tick_setup_sched_timer+0x2c0/0x2c0 [ 268.681492][ C1] __hrtimer_run_queues+0x403/0x850 [ 268.686700][ C1] hrtimer_interrupt+0x38c/0xda0 [ 268.691632][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 268.697157][ C1] apic_timer_interrupt+0xf/0x20 [ 268.702066][ C1] [ 268.705057][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 [ 268.711190][ C1] Code: 64 89 38 00 5b 5d c3 90 48 8b 04 24 65 48 8b 0c 25 c0 fd 01 00 65 8b 15 98 70 8e 7e f7 c2 00 01 1f 00 75 2c 8b 91 f0 12 00 00 <83> fa 02 75 21 48 8b 91 f8 12 00 00 48 8b 32 48 8d 7e 01 8b 89 f4 [ 268.730768][ C1] RSP: 0018:ffff8880a0aaf590 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 268.739161][ C1] RAX: ffffffff860c614e RBX: 1ffff11014199fd3 RCX: ffff8880a0a5c180 [ 268.747106][ C1] RDX: 0000000000000000 RSI: ffff8880a0ccfe90 RDI: ffff8880a0ccfdf8 [ 268.755052][ C1] RBP: ffff8880a0aaf640 R08: ffffffff860c5d6a R09: 0000000000000000 [ 268.762996][ C1] R10: fffffbfff117be8d R11: 0000000000000000 R12: dffffc0000000000 [ 268.770942][ C1] R13: ffff8880a0ccfb00 R14: ffff8880a0ccfe90 R15: ffff8880a0ccfe80 [ 268.778964][ C1] ? hhf_dequeue+0x15a/0xaa0 [ 268.783528][ C1] ? hhf_dequeue+0x53e/0xaa0 [ 268.788092][ C1] ? hhf_dequeue+0x53e/0xaa0 [ 268.792657][ C1] ? hhf_enqueue+0x19dc/0x2110 [ 268.797443][ C1] __qdisc_run+0x217/0x1b30 [ 268.801962][ C1] ? dev_queue_xmit+0x17/0x20 [ 268.806613][ C1] __dev_queue_xmit+0x1161/0x3020 [ 268.811619][ C1] dev_queue_xmit+0x17/0x20 [ 268.816133][ C1] neigh_resolve_output+0x60c/0x6b0 [ 268.821307][ C1] ip6_finish_output2+0x102c/0x13d0 [ 268.826483][ C1] __ip6_finish_output+0x693/0x910 [ 268.831568][ C1] ip6_finish_output+0x52/0x1e0 [ 268.836389][ C1] ? ip6_output+0x25a/0x390 [ 268.840884][ C1] ip6_output+0x26f/0x390 [ 268.845259][ C1] ndisc_send_skb+0xa35/0xe40 [ 268.849926][ C1] ndisc_send_ns+0x5ce/0x7b0 [ 268.854497][ C1] addrconf_dad_work+0xe40/0x1c20 [ 268.859498][ C1] process_one_work+0x7ef/0x10e0 [ 268.864413][ C1] worker_thread+0xc01/0x1630 [ 268.869078][ C1] kthread+0x332/0x350 [ 268.873119][ C1] ? rcu_lock_release+0x30/0x30 [ 268.877937][ C1] ? kthread_blkcg+0xe0/0xe0 [ 268.882513][ C1] ret_from_fork+0x24/0x30