[[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2.
[ 50.983695][ T26] audit: type=1800 audit(1568483070.786:21): pid=9007 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0
[ 51.031862][ T26] audit: type=1800 audit(1568483070.796:22): pid=9007 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[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.0.203' (ECDSA) to the list of known hosts.
syzkaller login: [ 244.057585][ T9157] IPVS: ftp: loaded support on port[0] = 21
[ 244.094699][ T9157] chnl_net:caif_netlink_parms(): no params data found
[ 244.114437][ T9157] bridge0: port 1(bridge_slave_0) entered blocking state
[ 244.121693][ T9157] bridge0: port 1(bridge_slave_0) entered disabled state
[ 244.129073][ T9157] device bridge_slave_0 entered promiscuous mode
[ 244.136040][ T9157] bridge0: port 2(bridge_slave_1) entered blocking state
[ 244.143152][ T9157] bridge0: port 2(bridge_slave_1) entered disabled state
[ 244.150555][ T9157] device bridge_slave_1 entered promiscuous mode
[ 244.162652][ T9157] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 244.172724][ T9157] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 244.186607][ T9157] team0: Port device team_slave_0 added
[ 244.192834][ T9157] team0: Port device team_slave_1 added
[ 244.247920][ T9157] device hsr_slave_0 entered promiscuous mode
[ 244.316883][ T9157] device hsr_slave_1 entered promiscuous mode
[ 244.370981][ T9157] bridge0: port 2(bridge_slave_1) entered blocking state
[ 244.378073][ T9157] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 244.385321][ T9157] bridge0: port 1(bridge_slave_0) entered blocking state
[ 244.392383][ T9157] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 244.414303][ T9157] 8021q: adding VLAN 0 to HW filter on device bond0
[ 244.423638][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 244.443097][ T5] bridge0: port 1(bridge_slave_0) entered disabled state
[ 244.450744][ T5] bridge0: port 2(bridge_slave_1) entered disabled state
[ 244.458675][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 244.468013][ T9157] 8021q: adding VLAN 0 to HW filter on device team0
[ 244.477394][ T3646] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 244.485627][ T3646] bridge0: port 1(bridge_slave_0) entered blocking state
[ 244.492685][ T3646] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 244.500164][ T3646] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 244.508902][ T3646] bridge0: port 2(bridge_slave_1) entered blocking state
[ 244.515921][ T3646] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 244.531427][ T9157] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network
[ 244.541988][ T9157] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 244.554124][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 244.562430][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 244.570663][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
executing program
[ 244.579022][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 244.587151][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 244.594602][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 244.608291][ T9157] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 349.696492][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 349.703124][ C1] rcu: 1-...!: (10500 ticks this GP) idle=f2e/0/0x3 softirq=7920/7920 fqs=0
[ 349.711939][ C1] (t=10501 jiffies g=6549 q=67)
[ 349.716854][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g6549 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
[ 349.728095][ C1] rcu: RCU grace-period kthread stack dump:
[ 349.733970][ C1] rcu_preempt I29080 10 2 0x80004000
[ 349.740293][ C1] Call Trace:
[ 349.743683][ C1] __schedule+0x877/0xc50
[ 349.747995][ C1] schedule+0x131/0x1e0
[ 349.752136][ C1] schedule_timeout+0x14f/0x240
[ 349.757012][ C1] ? run_local_timers+0x120/0x120
[ 349.762046][ C1] rcu_gp_kthread+0xef8/0x1790
[ 349.766830][ C1] kthread+0x332/0x350
[ 349.770874][ C1] ? rcu_report_qs_rsp+0x150/0x150
[ 349.775958][ C1] ? kthread_blkcg+0xe0/0xe0
[ 349.780555][ C1] ret_from_fork+0x24/0x30
[ 349.784966][ C1] NMI backtrace for cpu 1
[ 349.789273][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0-rc8+ #0
[ 349.796365][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 349.806395][ C1] Call Trace:
[ 349.809658][ C1]
[ 349.812530][ C1] dump_stack+0x1d8/0x2f8
[ 349.816851][ C1] nmi_cpu_backtrace+0xaf/0x1a0
[ 349.821684][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290
[ 349.827854][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 349.833896][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290
[ 349.839848][ C1] arch_trigger_cpumask_backtrace+0x10/0x20
[ 349.845716][ C1] rcu_dump_cpu_stacks+0x15a/0x220
[ 349.850803][ C1] rcu_sched_clock_irq+0xb95/0x16d0
[ 349.856007][ C1] ? trace_hardirqs_off+0x74/0x80
[ 349.861008][ C1] update_process_times+0x134/0x190
[ 349.866202][ C1] tick_sched_timer+0x263/0x420
[ 349.871032][ C1] ? tick_setup_sched_timer+0x2c0/0x2c0
[ 349.876579][ C1] __hrtimer_run_queues+0x403/0x850
[ 349.881757][ C1] hrtimer_interrupt+0x38c/0xda0
[ 349.886677][ C1] smp_apic_timer_interrupt+0x109/0x280
[ 349.892206][ C1] apic_timer_interrupt+0xf/0x20
[ 349.897183][ C1] RIP: 0010:hhf_dequeue+0x4bb/0xaa0
[ 349.902358][ C1] Code: 8d 7b 08 48 89 f8 48 c1 e8 03 42 80 3c 20 00 4c 8b 7d a0 74 05 e8 a5 27 a0 fb 4c 8b 73 08 48 89 d8 48 c1 e8 03 42 80 3c 20 00 <74> 08 48 89 df e8 8b 27 a0 fb 48 8b 1b 48 8d 7b 08 48 89 f8 48 c1
[ 349.921936][ C1] RSP: 0018:ffff8880aeb09760 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 349.930319][ C1] RAX: 1ffff1101157f6a7 RBX: ffff88808abfb538 RCX: ffff8880a98bc340
[ 349.938277][ C1] RDX: 0000000000000502 RSI: 0000000000000000 RDI: ffff88808abfb540
[ 349.946222][ C1] RBP: ffff8880aeb09808 R08: ffffffff860c5d6a R09: 0000000000000000
[ 349.954180][ C1] R10: fffffbfff117be8d R11: 0000000000000000 R12: dffffc0000000000
[ 349.962129][ C1] R13: ffff88808abfb240 R14: ffff88808abfb5d0 R15: ffff88808abfb5c0
[ 349.970083][ C1] ? apic_timer_interrupt+0xa/0x20
[ 349.975168][ C1] ? hhf_dequeue+0x15a/0xaa0
[ 349.979867][ C1] __qdisc_run+0x217/0x1b30
[ 349.984386][ C1] ? dev_queue_xmit+0x17/0x20
[ 349.989060][ C1] __dev_queue_xmit+0x1161/0x3020
[ 349.994106][ C1] ? ip6_finish_output2+0xdc6/0x13d0
[ 349.999390][ C1] dev_queue_xmit+0x17/0x20
[ 350.003867][ C1] ip6_finish_output2+0xff2/0x13d0
[ 350.008955][ C1] __ip6_finish_output+0x693/0x910
[ 350.014044][ C1] ip6_finish_output+0x52/0x1e0
[ 350.018867][ C1] ? ip6_output+0x25a/0x390
[ 350.023343][ C1] ip6_output+0x26f/0x390
[ 350.027689][ C1] mld_sendpack+0x770/0xb90
[ 350.032173][ C1] mld_ifc_timer_expire+0x820/0xb70
[ 350.037349][ C1] ? mld_gq_timer_expire+0x80/0x80
[ 350.042436][ C1] call_timer_fn+0x95/0x170
[ 350.046926][ C1] ? mld_gq_timer_expire+0x80/0x80
[ 350.052014][ C1] __run_timers+0x79e/0x970
[ 350.056530][ C1] ? check_preemption_disabled+0x47/0x2a0
[ 350.062223][ C1] ? check_preemption_disabled+0x47/0x2a0
[ 350.067928][ C1] run_timer_softirq+0x4a/0x90
[ 350.072669][ C1] __do_softirq+0x333/0x7c4
[ 350.077186][ C1] ? irq_exit+0x227/0x230
[ 350.081504][ C1] irq_exit+0x227/0x230
[ 350.085650][ C1] smp_apic_timer_interrupt+0x113/0x280
[ 350.091169][ C1] apic_timer_interrupt+0xf/0x20
[ 350.096078][ C1]
[ 350.098991][ C1] RIP: 0010:native_safe_halt+0xe/0x10
[ 350.104347][ C1] Code: 30 fa eb ae 89 d9 80 e1 07 80 c1 03 38 c1 7c ba 48 89 df e8 44 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
[ 350.123966][ C1] RSP: 0018:ffff8880a98c7e10 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 350.132350][ C1] RAX: 1ffffffff11150f3 RBX: ffff8880a98bc340 RCX: dffffc0000000000
[ 350.140295][ C1] RDX: 0000000000000000 RSI: ffffffff812b7a1a RDI: ffffffff877be46a
[ 350.148344][ C1] RBP: ffff8880a98c7e18 R08: ffffffff81790e44 R09: ffffed1015317869
[ 350.156301][ C1] R10: ffffed1015317869 R11: 0000000000000000 R12: dffffc0000000000
[ 350.164248][ C1] R13: 1ffff11015317868 R14: dffffc0000000000 R15: 0000000000000001
[ 350.172216][ C1] ? trace_hardirqs_on+0x34/0x80
[ 350.177174][ C1] ? arch_cpu_idle+0xa/0x10
[ 350.181653][ C1] ? default_idle+0x1a/0x70
[ 350.186129][ C1] ? default_idle+0x50/0x70
[ 350.190630][ C1] arch_cpu_idle+0xa/0x10
[ 350.194934][ C1] default_idle_call+0x59/0xa0
[ 350.199762][ C1] do_idle+0x140/0x6d0
[ 350.203811][ C1] cpu_startup_entry+0x25/0x30
[ 350.209158][ C1] start_secondary+0x3a5/0x430
[ 350.213922][ C1] secondary_startup_64+0xa4/0xb0