[info] Using makefile-style concurrent boot in runlevel 2. [ 61.202130][ T26] audit: type=1800 audit(1568469717.719:21): pid=9569 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 61.245338][ T26] audit: type=1800 audit(1568469717.719:22): pid=9569 uid=0 auid=4294967295 ses=4294967295 subj==unconfined 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 '10.128.10.60' (ECDSA) to the list of known hosts. syzkaller login: [ 334.440347][ T9721] IPVS: ftp: loaded support on port[0] = 21 [ 334.487020][ T9721] chnl_net:caif_netlink_parms(): no params data found [ 334.508997][ T9721] bridge0: port 1(bridge_slave_0) entered blocking state [ 334.516185][ T9721] bridge0: port 1(bridge_slave_0) entered disabled state [ 334.523702][ T9721] device bridge_slave_0 entered promiscuous mode [ 334.531085][ T9721] bridge0: port 2(bridge_slave_1) entered blocking state [ 334.538296][ T9721] bridge0: port 2(bridge_slave_1) entered disabled state [ 334.545768][ T9721] device bridge_slave_1 entered promiscuous mode [ 334.560318][ T9721] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 334.570466][ T9721] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 334.586215][ T9721] team0: Port device team_slave_0 added [ 334.592633][ T9721] team0: Port device team_slave_1 added [ 334.637624][ T9721] device hsr_slave_0 entered promiscuous mode [ 334.686456][ T9721] device hsr_slave_1 entered promiscuous mode [ 334.731301][ T9721] bridge0: port 2(bridge_slave_1) entered blocking state [ 334.738523][ T9721] bridge0: port 2(bridge_slave_1) entered forwarding state [ 334.745786][ T9721] bridge0: port 1(bridge_slave_0) entered blocking state [ 334.752867][ T9721] bridge0: port 1(bridge_slave_0) entered forwarding state [ 334.775555][ T9721] 8021q: adding VLAN 0 to HW filter on device bond0 [ 334.787474][ T9725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 334.795523][ T9725] bridge0: port 1(bridge_slave_0) entered disabled state [ 334.803408][ T9725] bridge0: port 2(bridge_slave_1) entered disabled state [ 334.811446][ T9725] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 334.822024][ T9721] 8021q: adding VLAN 0 to HW filter on device team0 [ 334.831211][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 334.839537][ T3021] bridge0: port 1(bridge_slave_0) entered blocking state [ 334.846734][ T3021] bridge0: port 1(bridge_slave_0) entered forwarding state [ 334.856792][ T9725] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 334.865057][ T9725] bridge0: port 2(bridge_slave_1) entered blocking state [ 334.872173][ T9725] bridge0: port 2(bridge_slave_1) entered forwarding state [ 334.887407][ T9725] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 334.896459][ T9725] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 334.905120][ T3520] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 334.914180][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 334.924857][ T9721] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network executing program [ 334.935874][ T9721] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 334.944417][ T9725] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 334.959266][ T9721] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 440.066006][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 440.072670][ C0] rcu: 0-...!: (1 GPs behind) idle=116/1/0x4000000000000004 softirq=9549/9550 fqs=33 [ 440.082278][ C0] (t=10501 jiffies g=9205 q=54) [ 440.087197][ C0] rcu: rcu_preempt kthread starved for 10436 jiffies! g9205 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 440.098444][ C0] rcu: RCU grace-period kthread stack dump: [ 440.104314][ C0] rcu_preempt I29520 10 2 0x80004000 [ 440.110629][ C0] Call Trace: [ 440.113999][ C0] __schedule+0x755/0x1580 [ 440.118402][ C0] ? __sched_text_start+0x8/0x8 [ 440.123237][ C0] schedule+0xd9/0x260 [ 440.127298][ C0] schedule_timeout+0x486/0xc50 [ 440.132130][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 440.137050][ C0] ? usleep_range+0x170/0x170 [ 440.141706][ C0] ? trace_hardirqs_on+0x67/0x240 [ 440.146713][ C0] ? __kasan_check_read+0x11/0x20 [ 440.151721][ C0] ? __next_timer_interrupt+0x1a0/0x1a0 [ 440.157282][ C0] ? swake_up_one+0x60/0x60 [ 440.161768][ C0] rcu_gp_kthread+0x9b2/0x18c0 [ 440.166516][ C0] ? rcu_barrier+0x310/0x310 [ 440.171095][ C0] ? trace_hardirqs_on+0x67/0x240 [ 440.176130][ C0] ? __kasan_check_read+0x11/0x20 [ 440.181174][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 440.187401][ C0] ? __kthread_parkme+0x108/0x1c0 [ 440.192405][ C0] ? __kasan_check_read+0x11/0x20 [ 440.197411][ C0] kthread+0x361/0x430 [ 440.201461][ C0] ? rcu_barrier+0x310/0x310 [ 440.206029][ C0] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 440.212252][ C0] ret_from_fork+0x24/0x30 [ 440.216678][ C0] NMI backtrace for cpu 0 [ 440.220998][ C0] CPU: 0 PID: 3021 Comm: kworker/0:2 Not tainted 5.3.0-rc8+ #0 [ 440.228524][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 440.238644][ C0] Workqueue: events iterate_cleanup_work [ 440.244255][ C0] Call Trace: [ 440.247518][ C0] [ 440.250387][ C0] dump_stack+0x172/0x1f0 [ 440.254699][ C0] nmi_cpu_backtrace.cold+0x70/0xb2 [ 440.259893][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 440.266115][ C0] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 440.271727][ C0] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 440.277687][ C0] arch_trigger_cpumask_backtrace+0x14/0x20 [ 440.283572][ C0] rcu_dump_cpu_stacks+0x183/0x1cf [ 440.288666][ C0] rcu_sched_clock_irq.cold+0x4dd/0xc13 [ 440.294193][ C0] ? raise_softirq+0x138/0x340 [ 440.298938][ C0] update_process_times+0x32/0x80 [ 440.303959][ C0] tick_sched_handle+0xa2/0x190 [ 440.308800][ C0] tick_sched_timer+0x53/0x140 [ 440.313549][ C0] __hrtimer_run_queues+0x364/0xe40 [ 440.318737][ C0] ? tick_sched_do_timer+0x1b0/0x1b0 [ 440.324016][ C0] ? hrtimer_start_range_ns+0xcb0/0xcb0 [ 440.329570][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 440.335309][ C0] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 440.341361][ C0] hrtimer_interrupt+0x314/0x770 [ 440.346361][ C0] smp_apic_timer_interrupt+0x160/0x610 [ 440.351894][ C0] apic_timer_interrupt+0xf/0x20 [ 440.356816][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 [ 440.362877][ C0] Code: 89 25 24 4d 19 09 41 bc f4 ff ff ff e8 9d 9f e9 ff 48 c7 05 0e 4d 19 09 00 00 00 00 e9 77 e9 ff ff 90 90 90 90 90 90 90 90 90 <55> 48 89 e5 65 48 8b 04 25 40 fe 01 00 65 8b 15 f4 88 8f 7e 81 e2 [ 440.382481][ C0] RSP: 0018:ffff8880ae808af0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 440.390882][ C0] RAX: 0000000000000301 RBX: ffff8880a1989978 RCX: ffffffff85c67051 [ 440.398843][ C0] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000001 [ 440.406795][ C0] RBP: ffff8880ae808b48 R08: ffff88809f8fc180 R09: 0000000000000000 [ 440.414844][ C0] R10: fffffbfff134afaf R11: ffff88809f8fc180 R12: dffffc0000000000 [ 440.422795][ C0] R13: ffff8880a1989680 R14: 0000000000000001 R15: 0000000000000000 [ 440.430756][ C0] ? apic_timer_interrupt+0xa/0x20 [ 440.435906][ C0] ? hhf_dequeue+0x5d1/0xa20 [ 440.440488][ C0] ? hhf_dequeue+0x5db/0xa20 [ 440.445110][ C0] __qdisc_run+0x1e7/0x19d0 [ 440.449616][ C0] ? dev_queue_xmit+0x18/0x20 [ 440.454279][ C0] __dev_queue_xmit+0x16f1/0x3650 [ 440.459283][ C0] ? process_backlog+0x206/0x750 [ 440.464199][ C0] ? net_rx_action+0x4d6/0x1030 [ 440.469028][ C0] ? __do_softirq+0x262/0x98c [ 440.473684][ C0] ? irq_exit+0x19b/0x1e0 [ 440.477992][ C0] ? smp_apic_timer_interrupt+0x1a3/0x610 [ 440.483693][ C0] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 440.488975][ C0] ? quarantine_put+0x11c/0x1c0 [ 440.493806][ C0] ? trace_hardirqs_on+0x67/0x240 [ 440.498985][ C0] ? __skb_ext_put+0xd9/0x210 [ 440.503648][ C0] dev_queue_xmit+0x18/0x20 [ 440.508219][ C0] ? dev_queue_xmit+0x18/0x20 [ 440.512911][ C0] br_dev_queue_push_xmit+0x3f3/0x5c0 [ 440.518295][ C0] ? __skb_ext_del+0xb0/0x2c0 [ 440.522968][ C0] ? lock_downgrade+0x920/0x920 [ 440.527843][ C0] br_nf_dev_queue_xmit+0x34e/0x1470 [ 440.533116][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 440.538838][ C0] br_nf_post_routing+0x1502/0x1d30 [ 440.544039][ C0] ? br_nf_dev_queue_xmit+0x1470/0x1470 [ 440.549569][ C0] ? mark_held_locks+0xf0/0xf0 [ 440.554313][ C0] ? nf_bridge_update_protocol+0x1d0/0x1d0 [ 440.560101][ C0] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 440.565953][ C0] nf_hook_slow+0xbc/0x1e0 [ 440.570359][ C0] br_forward_finish+0x215/0x400 [ 440.575286][ C0] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 440.580865][ C0] ? ret_from_fork+0x24/0x30 [ 440.585439][ C0] ? br_fdb_add.cold+0x8c/0x8c [ 440.590251][ C0] ? ip_vs_out+0x244/0x1700 [ 440.594744][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 440.600546][ C0] ? nf_hook_slow+0xf0/0x1e0 [ 440.605215][ C0] ? should_fail+0x1de/0x852 [ 440.609809][ C0] br_nf_hook_thresh+0x2e9/0x370 [ 440.614728][ C0] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 440.620250][ C0] ? setup_pre_routing+0x4b0/0x4b0 [ 440.625340][ C0] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 440.630865][ C0] ? br_nf_forward_finish+0x176/0xa90 [ 440.636326][ C0] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 440.642200][ C0] br_nf_forward_finish+0x66c/0xa90 [ 440.647379][ C0] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 440.652923][ C0] br_nf_forward_ip+0xc74/0x21e0 [ 440.657854][ C0] ? br_nf_forward_arp+0x1670/0x1670 [ 440.663122][ C0] ? mark_held_locks+0xf0/0xf0 [ 440.667963][ C0] ? br_nf_hook_thresh+0x370/0x370 [ 440.673133][ C0] ? __vlan_flush+0x120/0x120 [ 440.677813][ C0] nf_hook_slow+0xbc/0x1e0 [ 440.682217][ C0] __br_forward+0x393/0xb00 [ 440.686709][ C0] ? br_forward_finish+0x400/0x400 [ 440.691817][ C0] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 440.697351][ C0] deliver_clone+0x61/0xc0 [ 440.701751][ C0] br_flood+0x325/0x3d0 [ 440.705900][ C0] br_handle_frame_finish+0xb46/0x1670 [ 440.711340][ C0] ? br_handle_local_finish+0x20/0x20 [ 440.716707][ C0] ? __dev_queue_xmit+0x17e0/0x3650 [ 440.721898][ C0] ? audit_alloc_mark+0x420/0x500 [ 440.726993][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 440.732780][ C0] ? nf_hook_slow+0xf0/0x1e0 [ 440.737355][ C0] br_nf_hook_thresh+0x2e9/0x370 [ 440.742284][ C0] ? br_handle_local_finish+0x20/0x20 [ 440.747638][ C0] ? setup_pre_routing+0x4b0/0x4b0 [ 440.752737][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 440.758957][ C0] ? br_handle_local_finish+0x20/0x20 [ 440.764309][ C0] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 440.770187][ C0] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 440.776060][ C0] br_nf_pre_routing_finish_ipv6+0x6fb/0xd80 [ 440.782027][ C0] ? br_handle_local_finish+0x20/0x20 [ 440.787380][ C0] br_nf_pre_routing_ipv6+0x456/0x832 [ 440.792740][ C0] ? br_validate_ipv6+0xb80/0xb80 [ 440.797748][ C0] ? br_nf_pre_routing_finish.cold+0x124/0x124 [ 440.804066][ C0] ? br_nf_pre_routing+0x246/0x2355 [ 440.809393][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 440.815629][ C0] ? skb_pull_rcsum+0x155/0x300 [ 440.820474][ C0] br_nf_pre_routing+0x1743/0x2355 [ 440.825574][ C0] ? br_nf_pre_routing_finish+0x1730/0x1730 [ 440.832088][ C0] ? br_nf_pre_routing_finish+0x1730/0x1730 [ 440.837966][ C0] br_handle_frame+0x806/0x133e [ 440.842799][ C0] ? br_handle_frame_finish+0x1670/0x1670 [ 440.848499][ C0] ? br_handle_local_finish+0x20/0x20 [ 440.853860][ C0] ? account_entity_enqueue+0x244/0x390 [ 440.859418][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 440.865672][ C0] ? br_handle_frame_finish+0x1670/0x1670 [ 440.871406][ C0] __netif_receive_skb_core+0xfc1/0x3060 [ 440.877127][ C0] ? lock_downgrade+0x920/0x920 [ 440.881980][ C0] ? lock_downgrade+0x8d0/0x920 [ 440.886815][ C0] ? do_xdp_generic+0x50/0x50 [ 440.891478][ C0] ? trace_hardirqs_off+0x62/0x240 [ 440.896568][ C0] ? __kasan_check_read+0x11/0x20 [ 440.901576][ C0] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 440.907408][ C0] ? swake_up_one+0x4d/0x60 [ 440.911889][ C0] ? __kasan_check_read+0x11/0x20 [ 440.916903][ C0] __netif_receive_skb_one_core+0xa8/0x1a0 [ 440.922686][ C0] ? __netif_receive_skb_one_core+0xa8/0x1a0 [ 440.928643][ C0] ? __kasan_check_write+0x14/0x20 [ 440.933732][ C0] ? __netif_receive_skb_core+0x3060/0x3060 [ 440.939615][ C0] ? lock_acquire+0x190/0x410 [ 440.944270][ C0] ? process_backlog+0x195/0x750 [ 440.949187][ C0] __netif_receive_skb+0x2c/0x1d0 [ 440.954191][ C0] process_backlog+0x206/0x750 [ 440.958933][ C0] ? rcu_report_qs_rsp+0x6d/0xa0 [ 440.963875][ C0] net_rx_action+0x4d6/0x1030 [ 440.968545][ C0] ? napi_complete_done+0x4b0/0x4b0 [ 440.973817][ C0] ? sched_clock+0x2e/0x50 [ 440.978218][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 440.984440][ C0] __do_softirq+0x262/0x98c [ 440.988944][ C0] ? sched_clock_cpu+0x1b/0x1b0 [ 440.993789][ C0] irq_exit+0x19b/0x1e0 [ 440.997928][ C0] smp_apic_timer_interrupt+0x1a3/0x610 [ 441.003458][ C0] apic_timer_interrupt+0xf/0x20 [ 441.008371][ C0] [ 441.011295][ C0] RIP: 0010:__local_bh_enable_ip+0x18e/0x270 [ 441.017352][ C0] Code: 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 df 00 00 00 48 83 3d 7f 59 8d 07 00 0f 84 8f 00 00 00 fb 66 0f 1f 44 00 00 <65> 8b 05 13 63 bc 7e 85 c0 74 7f 5b 41 5c 41 5d 5d c3 80 3d c6 0b [ 441.036938][ C0] RSP: 0018:ffff88809f9c7bb0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 441.045338][ C0] RAX: 1ffffffff11a5e8c RBX: 0000000000000200 RCX: 1ffffffff134b5ee [ 441.053376][ C0] RDX: dffffc0000000000 RSI: ffffffff8177f15e RDI: ffffffff81459aba [ 441.061330][ C0] RBP: ffff88809f9c7bc8 R08: ffff88809f8fc180 R09: fffffbfff118b838 [ 441.069281][ C0] R10: fffffbfff118b837 R11: ffffffff88c5c1bb R12: ffffffff85d21651 [ 441.077244][ C0] R13: ffffffff88c5c1b8 R14: 0000000000000001 R15: dffffc0000000000 [ 441.085205][ C0] ? nf_ct_iterate_cleanup+0x1f1/0x4e0 [ 441.090643][ C0] ? trace_hardirqs_on+0x5e/0x240 [ 441.095660][ C0] ? __local_bh_enable_ip+0x15a/0x270 [ 441.101024][ C0] nf_ct_iterate_cleanup+0x217/0x4e0 [ 441.106288][ C0] ? nf_ct_alloc_hashtable+0x150/0x150 [ 441.111726][ C0] nf_ct_iterate_cleanup_net+0x133/0x190 [ 441.117338][ C0] ? nf_nat_masquerade_inet_unregister_notifiers+0x80/0x80 [ 441.124512][ C0] ? nf_ct_iterate_cleanup+0x4e0/0x4e0 [ 441.129953][ C0] ? nf_nat_masquerade_inet_unregister_notifiers+0x80/0x80 [ 441.137129][ C0] ? lock_acquire+0x190/0x410 [ 441.141794][ C0] ? process_one_work+0x8c1/0x1740 [ 441.146900][ C0] iterate_cleanup_work+0x4a/0xd7 [ 441.151918][ C0] process_one_work+0x9af/0x1740 [ 441.156855][ C0] ? pwq_dec_nr_in_flight+0x320/0x320 [ 441.162208][ C0] ? lock_acquire+0x190/0x410 [ 441.166871][ C0] worker_thread+0x98/0xe40 [ 441.171351][ C0] ? trace_hardirqs_on+0x67/0x240 [ 441.176358][ C0] kthread+0x361/0x430 [ 441.180408][ C0] ? process_one_work+0x1740/0x1740 [ 441.185589][ C0] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 441.191819][ C0] ret_from_fork+0x24/0x30