[info] Using makefile-style concurrent boot in runlevel 2. [ 52.731688][ T26] audit: type=1800 audit(1568358060.127:21): pid=9094 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 52.778785][ T26] audit: type=1800 audit(1568358060.137:22): pid=9094 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 '10.128.0.247' (ECDSA) to the list of known hosts. syzkaller login: [ 135.480783][ T9247] IPVS: ftp: loaded support on port[0] = 21 [ 135.514153][ T9247] chnl_net:caif_netlink_parms(): no params data found [ 135.533293][ T9247] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.540704][ T9247] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.548171][ T9247] device bridge_slave_0 entered promiscuous mode [ 135.555627][ T9247] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.562680][ T9247] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.570224][ T9247] device bridge_slave_1 entered promiscuous mode [ 135.582406][ T9247] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 135.592606][ T9247] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 135.607401][ T9247] team0: Port device team_slave_0 added [ 135.613643][ T9247] team0: Port device team_slave_1 added [ 135.666126][ T9247] device hsr_slave_0 entered promiscuous mode [ 135.704973][ T9247] device hsr_slave_1 entered promiscuous mode [ 135.749559][ T9247] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.756629][ T9247] bridge0: port 2(bridge_slave_1) entered forwarding state [ 135.763867][ T9247] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.770932][ T9247] bridge0: port 1(bridge_slave_0) entered forwarding state [ 135.792599][ T9247] 8021q: adding VLAN 0 to HW filter on device bond0 [ 135.802376][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 135.812446][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.820133][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.830572][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 135.840191][ T9247] 8021q: adding VLAN 0 to HW filter on device team0 [ 135.849075][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 135.858238][ T23] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.865291][ T23] bridge0: port 1(bridge_slave_0) entered forwarding state [ 135.874473][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 135.883308][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.890408][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 135.905373][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 135.913684][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 135.922843][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 135.931907][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 135.940772][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 135.950333][ T9247] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 135.962920][ T9247] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 241.004708][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 241.011521][ C0] rcu: 0-...!: (1 GPs behind) idle=a32/0/0x3 softirq=9517/9517 fqs=2 [ 241.019742][ C0] (t=10501 jiffies g=7589 q=67) [ 241.024659][ C0] rcu: rcu_preempt kthread starved for 10498 jiffies! g7589 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 241.035902][ C0] rcu: RCU grace-period kthread stack dump: [ 241.041817][ C0] rcu_preempt I28768 10 2 0x80004000 [ 241.048204][ C0] Call Trace: [ 241.051603][ C0] __schedule+0x877/0xc50 [ 241.055913][ C0] schedule+0x131/0x1e0 [ 241.060043][ C0] schedule_timeout+0x14f/0x240 [ 241.064971][ C0] ? run_local_timers+0x120/0x120 [ 241.070006][ C0] rcu_gp_kthread+0xef8/0x1790 [ 241.074828][ C0] kthread+0x332/0x350 [ 241.078894][ C0] ? rcu_report_qs_rsp+0x150/0x150 [ 241.083988][ C0] ? kthread_blkcg+0xe0/0xe0 [ 241.088642][ C0] ret_from_fork+0x24/0x30 [ 241.093105][ C0] NMI backtrace for cpu 0 [ 241.097446][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.0-rc8+ #0 [ 241.104521][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 241.116555][ C0] Call Trace: [ 241.119817][ C0] [ 241.122734][ C0] dump_stack+0x1d8/0x2f8 [ 241.127037][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 241.131859][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 241.138055][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 241.144104][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 241.150060][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 241.155927][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 241.161024][ C0] rcu_sched_clock_irq+0xb95/0x16d0 [ 241.166251][ C0] ? trace_hardirqs_off+0x74/0x80 [ 241.171251][ C0] update_process_times+0x134/0x190 [ 241.176453][ C0] tick_sched_timer+0x263/0x420 [ 241.181279][ C0] ? tick_setup_sched_timer+0x2c0/0x2c0 [ 241.186801][ C0] __hrtimer_run_queues+0x403/0x850 [ 241.191981][ C0] hrtimer_interrupt+0x38c/0xda0 [ 241.196900][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 241.202419][ C0] apic_timer_interrupt+0xf/0x20 [ 241.207397][ C0] RIP: 0010:__list_add_valid+0x2b/0xc0 [ 241.212838][ C0] Code: 48 89 e5 41 57 41 56 41 55 41 54 53 49 89 d6 49 89 f4 49 89 ff 49 bd 00 00 00 00 00 fc ff df 48 8d 5a 08 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 26 c5 58 fe 48 8b 13 4c 39 e2 75 [ 241.232417][ C0] RSP: 0018:ffff8880aea09728 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13 [ 241.240800][ C0] RAX: 1ffff1101199f90b RBX: ffff88808ccfc858 RCX: ffffffff88875a00 [ 241.248754][ C0] RDX: ffff88808ccfc850 RSI: ffff88808ccfc850 RDI: ffff88808ccfc7b8 [ 241.256699][ C0] RBP: ffff8880aea09750 R08: ffffffff860c5d6a R09: 0000000000000000 [ 241.264660][ C0] R10: fffffbfff117be8d R11: 0000000000000000 R12: ffff88808ccfc850 [ 241.272607][ C0] R13: dffffc0000000000 R14: ffff88808ccfc850 R15: ffff88808ccfc7b8 [ 241.280599][ C0] ? apic_timer_interrupt+0xa/0x20 [ 241.285793][ C0] ? hhf_dequeue+0x15a/0xaa0 [ 241.290366][ C0] hhf_dequeue+0x535/0xaa0 [ 241.294789][ C0] __qdisc_run+0x217/0x1b30 [ 241.299324][ C0] ? dev_queue_xmit+0x17/0x20 [ 241.303974][ C0] __dev_queue_xmit+0x1161/0x3020 [ 241.309017][ C0] ? ip6_finish_output2+0xdc6/0x13d0 [ 241.314275][ C0] dev_queue_xmit+0x17/0x20 [ 241.318770][ C0] ip6_finish_output2+0xff2/0x13d0 [ 241.323855][ C0] __ip6_finish_output+0x693/0x910 [ 241.328939][ C0] ip6_finish_output+0x52/0x1e0 [ 241.333761][ C0] ? ip6_output+0x25a/0x390 [ 241.338245][ C0] ip6_output+0x26f/0x390 [ 241.342591][ C0] mld_sendpack+0x770/0xb90 [ 241.347092][ C0] mld_ifc_timer_expire+0x820/0xb70 [ 241.352273][ C0] ? mld_gq_timer_expire+0x80/0x80 [ 241.357358][ C0] call_timer_fn+0x95/0x170 [ 241.361836][ C0] ? mld_gq_timer_expire+0x80/0x80 [ 241.366934][ C0] __run_timers+0x79e/0x970 [ 241.371415][ C0] ? check_preemption_disabled+0x47/0x2a0 [ 241.377107][ C0] ? check_preemption_disabled+0x47/0x2a0 [ 241.382801][ C0] run_timer_softirq+0x4a/0x90 [ 241.387553][ C0] __do_softirq+0x333/0x7c4 [ 241.392216][ C0] ? irq_exit+0x227/0x230 [ 241.396543][ C0] irq_exit+0x227/0x230 [ 241.400672][ C0] smp_apic_timer_interrupt+0x113/0x280 [ 241.406193][ C0] apic_timer_interrupt+0xf/0x20 [ 241.411098][ C0] [ 241.414012][ C0] RIP: 0010:native_safe_halt+0xe/0x10 [ 241.419362][ C0] 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 [ 241.439025][ C0] RSP: 0018:ffffffff88807dc0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 241.447424][ C0] RAX: 1ffffffff11150f3 RBX: ffffffff88875a00 RCX: dffffc0000000000 [ 241.455719][ C0] RDX: 0000000000000000 RSI: ffffffff812b7a1a RDI: ffffffff877be46a [ 241.463664][ C0] RBP: ffffffff88807dc8 R08: ffffffff81790e74 R09: fffffbfff110eb41 [ 241.471621][ C0] R10: fffffbfff110eb41 R11: 0000000000000000 R12: dffffc0000000000 [ 241.479566][ C0] R13: 1ffffffff110eb40 R14: dffffc0000000000 R15: 0000000000000000 [ 241.487530][ C0] ? trace_hardirqs_on+0x34/0x80 [ 241.492493][ C0] ? arch_cpu_idle+0xa/0x10 [ 241.496975][ C0] ? default_idle+0x1a/0x70 [ 241.501578][ C0] ? default_idle+0x50/0x70 [ 241.506054][ C0] arch_cpu_idle+0xa/0x10 [ 241.510367][ C0] default_idle_call+0x59/0xa0 [ 241.515163][ C0] do_idle+0x140/0x6d0 [ 241.519222][ C0] ? debug_smp_processor_id+0x1c/0x20 [ 241.524567][ C0] cpu_startup_entry+0x25/0x30 [ 241.529307][ C0] rest_init+0x29d/0x2b0 [ 241.533624][ C0] arch_call_rest_init+0xe/0x10 [ 241.538460][ C0] start_kernel+0x6f5/0x7f6 [ 241.542953][ C0] x86_64_start_reservations+0x18/0x2e [ 241.548385][ C0] x86_64_start_kernel+0x7a/0x7d [ 241.555347][ C0] secondary_startup_64+0xa4/0xb0