[info] Using makefile-style concurrent boot in runlevel 2. [ 51.821631][ T26] audit: type=1800 audit(1568267541.368:21): pid=9082 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 51.869483][ T26] audit: type=1800 audit(1568267541.378:22): pid=9082 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 '10.128.10.37' (ECDSA) to the list of known hosts. syzkaller login: [ 179.778109][ T9234] IPVS: ftp: loaded support on port[0] = 21 [ 179.812690][ T9234] chnl_net:caif_netlink_parms(): no params data found [ 179.834031][ T9234] bridge0: port 1(bridge_slave_0) entered blocking state [ 179.841260][ T9234] bridge0: port 1(bridge_slave_0) entered disabled state [ 179.849132][ T9234] device bridge_slave_0 entered promiscuous mode [ 179.856454][ T9234] bridge0: port 2(bridge_slave_1) entered blocking state [ 179.863601][ T9234] bridge0: port 2(bridge_slave_1) entered disabled state [ 179.871057][ T9234] device bridge_slave_1 entered promiscuous mode [ 179.883505][ T9234] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 179.893663][ T9234] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 179.908121][ T9234] team0: Port device team_slave_0 added [ 179.914818][ T9234] team0: Port device team_slave_1 added [ 179.984900][ T9234] device hsr_slave_0 entered promiscuous mode [ 180.053593][ T9234] device hsr_slave_1 entered promiscuous mode [ 180.108720][ T9234] bridge0: port 2(bridge_slave_1) entered blocking state [ 180.115841][ T9234] bridge0: port 2(bridge_slave_1) entered forwarding state [ 180.123162][ T9234] bridge0: port 1(bridge_slave_0) entered blocking state [ 180.130432][ T9234] bridge0: port 1(bridge_slave_0) entered forwarding state [ 180.152911][ T9234] 8021q: adding VLAN 0 to HW filter on device bond0 [ 180.162967][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 180.182475][ T3014] bridge0: port 1(bridge_slave_0) entered disabled state [ 180.190130][ T3014] bridge0: port 2(bridge_slave_1) entered disabled state [ 180.198222][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 180.207733][ T9234] 8021q: adding VLAN 0 to HW filter on device team0 [ 180.216507][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 180.225026][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 180.232051][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 180.249823][ T9234] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 180.260390][ T9234] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 180.272223][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 180.280859][ T3014] bridge0: port 2(bridge_slave_1) entered blocking state [ 180.287935][ T3014] bridge0: port 2(bridge_slave_1) entered forwarding state [ 180.296024][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready executing program [ 180.304364][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 180.312504][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 180.321597][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 180.334207][ T9234] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 180.341981][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 180.349844][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 285.383397][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 285.390657][ C1] (detected by 1, t=10502 jiffies, g=7525, q=67) [ 285.397267][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294965690-4294955187), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 285.410750][ C1] kworker/1:0 R running task 28072 17 2 0x80004008 [ 285.418821][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 285.425115][ C1] Call Trace: [ 285.428410][ C1] [ 285.431426][ C1] sched_show_task+0x348/0x400 [ 285.436245][ C1] rcu_sched_clock_irq+0x1597/0x16d0 [ 285.441659][ C1] update_process_times+0x134/0x190 [ 285.446937][ C1] tick_sched_timer+0x263/0x420 [ 285.451783][ C1] ? tick_setup_sched_timer+0x2c0/0x2c0 [ 285.457455][ C1] __hrtimer_run_queues+0x403/0x850 [ 285.462771][ C1] hrtimer_interrupt+0x38c/0xda0 [ 285.467798][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 285.473336][ C1] apic_timer_interrupt+0xf/0x20 [ 285.478326][ C1] RIP: 0010:native_queued_spin_lock_slowpath+0x92/0x9e0 [ 285.485257][ C1] Code: 84 c0 74 54 44 89 f9 80 e1 07 80 c1 03 38 c1 7c 47 4c 89 ff e8 5f f4 51 00 eb 3d 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f3 90 <4c> 89 ff be 04 00 00 00 e8 71 c5 51 00 42 0f b6 04 2b 84 c0 74 18 [ 285.505102][ C1] RSP: 0018:ffff8880aeb09088 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 285.513853][ C1] RAX: 0000000000000000 RBX: 1ffff11012e7e8b5 RCX: ffffffff815a93ef [ 285.521814][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880973f45a8 [ 285.529777][ C1] RBP: ffff8880aeb09100 R08: dffffc0000000000 R09: ffffed1012e7e8b6 [ 285.537761][ C1] R10: ffffed1012e7e8b6 R11: 0000000000000000 R12: ffff8880973f45b0 [ 285.545736][ C1] R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8880973f45a8 [ 285.553713][ C1] ? apic_timer_interrupt+0xa/0x20 [ 285.558840][ C1] ? native_queued_spin_lock_slowpath+0x9f/0x9e0 [ 285.565173][ C1] ? native_queued_spin_lock_slowpath+0x9f/0x9e0 [ 285.571497][ C1] ? trace_lock_acquire+0x159/0x1d0 [ 285.576699][ C1] do_raw_spin_lock+0x1d6/0x2d0 [ 285.581565][ C1] _raw_spin_lock+0x39/0x40 [ 285.586153][ C1] __dev_queue_xmit+0xde0/0x3020 [ 285.591170][ C1] ? _raw_spin_unlock_irqrestore+0xbc/0xe0 [ 285.597118][ C1] ? ebt_do_table+0x2614/0x2700 [ 285.602028][ C1] dev_queue_xmit+0x17/0x20 [ 285.606816][ C1] br_dev_queue_push_xmit+0x551/0x650 [ 285.612202][ C1] br_nf_dev_queue_xmit+0x312/0x1590 [ 285.617546][ C1] br_nf_post_routing+0xa5f/0xea0 [ 285.622619][ C1] ? br_nf_forward_arp+0xab0/0xab0 [ 285.627767][ C1] nf_hook_slow+0xc8/0x210 [ 285.632179][ C1] nf_hook+0x23a/0x310 [ 285.636241][ C1] ? fdb_add_hw_addr+0x220/0x220 [ 285.641168][ C1] br_forward_finish+0x7a/0xc0 [ 285.645918][ C1] ? fdb_add_hw_addr+0x220/0x220 [ 285.650845][ C1] br_nf_forward_finish+0x8f4/0xc80 [ 285.656035][ C1] ? rcu_lock_release+0x26/0x30 [ 285.660882][ C1] ? br_dev_queue_push_xmit+0x650/0x650 [ 285.666423][ C1] br_nf_forward_ip+0xed4/0x13f0 [ 285.671354][ C1] ? br_nf_pre_routing+0x1380/0x1380 [ 285.676634][ C1] nf_hook_slow+0xc8/0x210 [ 285.681048][ C1] nf_hook+0x23a/0x310 [ 285.685128][ C1] ? br_dev_queue_push_xmit+0x650/0x650 [ 285.690799][ C1] __br_forward+0x39e/0x720 [ 285.695293][ C1] ? br_dev_queue_push_xmit+0x650/0x650 [ 285.700833][ C1] br_flood+0x7af/0x840 [ 285.704988][ C1] br_handle_frame_finish+0xf37/0x1370 [ 285.710440][ C1] ? nf_hook_slow+0x17d/0x210 [ 285.715198][ C1] br_nf_hook_thresh+0x306/0x390 [ 285.720299][ C1] ? brport_get_ownership+0x80/0x80 [ 285.725593][ C1] br_nf_pre_routing_finish_ipv6+0x8ac/0xb30 [ 285.731669][ C1] ? brport_get_ownership+0x80/0x80 [ 285.736879][ C1] br_nf_pre_routing_ipv6+0x2ab/0x350 [ 285.742293][ C1] br_nf_pre_routing+0x6ca/0x1380 [ 285.747314][ C1] ? brnf_device_event+0x1f0/0x1f0 [ 285.752419][ C1] br_handle_frame+0x7d9/0xeb0 [ 285.757269][ C1] ? brport_get_ownership+0x80/0x80 [ 285.762464][ C1] ? br_pass_frame_up+0x4c0/0x4c0 [ 285.767548][ C1] __netif_receive_skb_core+0x1a7d/0x3470 [ 285.773389][ C1] __netif_receive_skb+0xc5/0x370 [ 285.778407][ C1] process_backlog+0x4d8/0x910 [ 285.783306][ C1] net_rx_action+0x5ef/0xfd0 [ 285.787915][ C1] __do_softirq+0x333/0x7c4 [ 285.792427][ C1] ? do_softirq_own_stack+0x2a/0x40 [ 285.797645][ C1] do_softirq_own_stack+0x2a/0x40 [ 285.802661][ C1] [ 285.805680][ C1] do_softirq+0xfd/0x190 [ 285.809919][ C1] ? local_bh_enable+0x9/0x30 [ 285.814654][ C1] __local_bh_enable_ip+0x194/0x240 [ 285.819851][ C1] local_bh_enable+0x1f/0x30 [ 285.824435][ C1] ip6_finish_output2+0x109f/0x13d0 [ 285.829632][ C1] __ip6_finish_output+0x693/0x910 [ 285.834743][ C1] ip6_finish_output+0x52/0x1e0 [ 285.839667][ C1] ? ip6_output+0x25a/0x390 [ 285.844212][ C1] ip6_output+0x26f/0x390 [ 285.848585][ C1] ndisc_send_skb+0xa35/0xe40 [ 285.853268][ C1] ndisc_send_ns+0x5ce/0x7b0 [ 285.857858][ C1] addrconf_dad_work+0xe40/0x1c20 [ 285.862919][ C1] process_one_work+0x7ef/0x10e0 [ 285.867989][ C1] worker_thread+0xc01/0x1630 [ 285.872834][ C1] kthread+0x332/0x350 [ 285.876901][ C1] ? rcu_lock_release+0x30/0x30 [ 285.881748][ C1] ? kthread_blkcg+0xe0/0xe0 [ 285.886356][ C1] ret_from_fork+0x24/0x30 [ 285.890778][ C1] rcu: rcu_preempt kthread starved for 10552 jiffies! g7525 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 285.901865][ C1] rcu: RCU grace-period kthread stack dump: [ 285.907763][ C1] rcu_preempt R running task 29080 10 2 0x80004000 [ 285.915663][ C1] Call Trace: [ 285.918948][ C1] __schedule+0x877/0xc50 [ 285.923272][ C1] schedule+0x131/0x1e0 [ 285.927584][ C1] schedule_timeout+0x14f/0x240 [ 285.932517][ C1] ? run_local_timers+0x120/0x120 [ 285.937626][ C1] rcu_gp_kthread+0xef8/0x1790 [ 285.942390][ C1] kthread+0x332/0x350 [ 285.946446][ C1] ? rcu_report_qs_rsp+0x150/0x150 [ 285.951546][ C1] ? kthread_blkcg+0xe0/0xe0 [ 285.956132][ C1] ret_from_fork+0x24/0x30