Warning: Permanently added '10.128.1.17' (ECDSA) to the list of known hosts. [ 43.861423] random: sshd: uninitialized urandom read (32 bytes read) [ 43.983639] audit: type=1400 audit(1567948552.283:36): avc: denied { map } for pid=6944 comm="syz-executor111" path="/root/syz-executor111964465" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 44.220949] IPVS: ftp: loaded support on port[0] = 21 [ 45.038808] chnl_net:caif_netlink_parms(): no params data found [ 45.067555] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.074487] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.081686] device bridge_slave_0 entered promiscuous mode [ 45.088522] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.095023] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.101970] device bridge_slave_1 entered promiscuous mode [ 45.116830] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 45.125851] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 45.142111] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 45.149262] team0: Port device team_slave_0 added [ 45.154864] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 45.162006] team0: Port device team_slave_1 added [ 45.167363] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 45.174739] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 45.232153] device hsr_slave_0 entered promiscuous mode [ 45.270408] device hsr_slave_1 entered promiscuous mode [ 45.320491] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 45.327377] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 45.339958] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.346420] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.353335] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.359697] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.386485] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 45.393566] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.401342] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.409243] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.429253] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.436402] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.446166] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 45.452365] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.460400] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.467969] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.474365] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.483051] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.490815] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.497143] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.512496] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 45.520491] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.532222] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 45.542946] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 45.554044] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 45.562173] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.569123] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.576793] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.584222] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 45.596176] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 45.605735] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 150.670038] INFO: rcu_preempt self-detected stall on CPU [ 150.675579] 1-...: (1 GPs behind) idle=4ca/140000000000001/0 softirq=10255/10259 fqs=24 [ 150.683875] (t=10500 jiffies g=1056 c=1055 q=14) [ 150.688797] rcu_preempt kthread starved for 10452 jiffies! g1056 c1055 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 [ 150.699273] rcu_preempt R running task 29776 8 2 0x80000000 [ 150.706455] Call Trace: [ 150.709030] __schedule+0x7b8/0x1cd0 [ 150.712729] ? pci_mmcfg_check_reserved+0x150/0x150 [ 150.717728] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 150.722818] schedule+0x92/0x1c0 [ 150.726164] schedule_timeout+0x43e/0xe10 [ 150.730297] ? usleep_range+0x130/0x130 [ 150.734255] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 150.739337] ? prepare_to_swait+0xcc/0x100 [ 150.743552] ? call_timer_fn+0x670/0x670 [ 150.747598] rcu_gp_kthread+0xbf4/0x1ec0 [ 150.751652] ? force_qs_rnp+0x4d0/0x4d0 [ 150.755617] kthread+0x319/0x430 [ 150.758969] ? force_qs_rnp+0x4d0/0x4d0 [ 150.762930] ? kthread_create_on_node+0xd0/0xd0 [ 150.767584] ret_from_fork+0x24/0x30 [ 150.771418] NMI backtrace for cpu 1 [ 150.775205] CPU: 1 PID: 18 Comm: kworker/1:0 Not tainted 4.14.142 #0 [ 150.781673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 150.791023] Workqueue: ipv6_addrconf addrconf_dad_work [ 150.796281] Call Trace: [ 150.798946] [ 150.801082] dump_stack+0x138/0x197 [ 150.804694] nmi_cpu_backtrace.cold+0x57/0x94 [ 150.809169] ? irq_force_complete_move.cold+0x7d/0x7d [ 150.814338] nmi_trigger_cpumask_backtrace+0x141/0x189 [ 150.819610] arch_trigger_cpumask_backtrace+0x14/0x20 [ 150.824785] rcu_dump_cpu_stacks+0x186/0x1d2 [ 150.829183] rcu_check_callbacks.cold+0x43d/0xd0a [ 150.834010] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 150.839452] update_process_times+0x31/0x70 [ 150.843756] tick_sched_handle+0x85/0x160 [ 150.847892] tick_sched_timer+0x43/0x130 [ 150.851936] __hrtimer_run_queues+0x270/0xbc0 [ 150.856413] ? tick_sched_do_timer+0xe0/0xe0 [ 150.860803] ? hrtimer_start_range_ns+0x10d0/0x10d0 [ 150.865815] hrtimer_interrupt+0x1d8/0x5d0 [ 150.870046] smp_apic_timer_interrupt+0x11c/0x5e0 [ 150.874877] apic_timer_interrupt+0x96/0xa0 [ 150.879180] RIP: 0010:hhf_dequeue+0xa6/0xa60 [ 150.883564] RSP: 0018:ffff8880aef06dc0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 [ 150.891254] RAX: 0000000000000000 RBX: ffff8880916d41f8 RCX: 0000000000000000 [ 150.898507] RDX: 0000000000000100 RSI: ffff8880916d4290 RDI: ffff8880916d4208 [ 150.905761] RBP: ffff8880aef06e10 R08: 0000000000000000 R09: ffff8880a9d5eef0 [ 150.913030] R10: ffff8880a9d5eed0 R11: ffff8880a9d5e4c0 R12: dffffc0000000000 [ 150.920294] R13: ffff8880916d4000 R14: ffff8880916d4290 R15: ffff8880916d4280 [ 150.927578] __qdisc_run+0x2b8/0xe00 [ 150.931280] __dev_queue_xmit+0x1571/0x25e0 [ 150.935582] ? br_nf_pre_routing+0xdce/0x12c7 [ 150.940058] ? nf_hook_slow+0xaf/0x1b0 [ 150.943928] ? br_handle_frame+0x80c/0x1110 [ 150.948233] ? __netif_receive_skb_core+0x789/0x2ca0 [ 150.953321] ? netdev_pick_tx+0x300/0x300 [ 150.957451] ? save_trace+0x290/0x290 [ 150.961228] ? kthread+0x319/0x430 [ 150.964751] ? __lock_is_held+0xb6/0x140 [ 150.968898] ? check_preemption_disabled+0x3c/0x250 [ 150.973902] dev_queue_xmit+0x18/0x20 [ 150.977688] ? dev_queue_xmit+0x18/0x20 [ 150.981647] br_dev_queue_push_xmit+0x367/0x530 [ 150.986299] ? trace_hardirqs_on+0xd/0x10 [ 150.990431] br_nf_dev_queue_xmit+0x307/0x1440 [ 150.994991] ? lock_downgrade+0x6e0/0x6e0 [ 150.999117] br_nf_post_routing+0xb80/0xf00 [ 151.003421] ? br_nf_dev_queue_xmit+0x1440/0x1440 [ 151.008245] ? ipv6_skip_exthdr+0x430/0x4d0 [ 151.012549] ? br_nf_pre_routing_finish_bridge+0x9f0/0x9f0 [ 151.018162] nf_hook_slow+0xaf/0x1b0 [ 151.021863] br_forward_finish+0x1b7/0x320 [ 151.026078] ? br_dev_queue_push_xmit+0x530/0x530 [ 151.030917] ? __lock_is_held+0xb6/0x140 [ 151.034961] ? check_preemption_disabled+0x3c/0x250 [ 151.039957] ? br_fdb_add.cold+0x84/0x84 [ 151.044000] ? nf_hook_slow+0xcc/0x1b0 [ 151.047874] br_nf_hook_thresh+0x25b/0x2e0 [ 151.052098] ? save_trace+0x290/0x290 [ 151.055887] ? setup_pre_routing+0x410/0x410 [ 151.060275] ? find_held_lock+0x35/0x130 [ 151.064320] ? br_dev_queue_push_xmit+0x530/0x530 [ 151.069145] br_nf_forward_finish+0x264/0x640 [ 151.073620] ? br_dev_queue_push_xmit+0x530/0x530 [ 151.078443] br_nf_forward_ip+0x5fc/0x11d0 [ 151.082661] ? br_nf_forward_finish+0x640/0x640 [ 151.087317] ? br_handle_vlan+0x4ea/0xab0 [ 151.091453] ? br_nf_hook_thresh+0x2e0/0x2e0 [ 151.095846] nf_hook_slow+0xaf/0x1b0 [ 151.099545] __br_forward+0x312/0x9c0 [ 151.103352] ? br_forward_finish+0x320/0x320 [ 151.107762] ? br_dev_queue_push_xmit+0x530/0x530 [ 151.112756] deliver_clone+0x61/0xc0 [ 151.116460] br_flood+0x43c/0x530 [ 151.119917] br_handle_frame_finish+0xaf0/0x1830 [ 151.124661] ? save_trace+0x290/0x290 [ 151.128455] ? br_handle_local_finish+0x20/0x20 [ 151.133112] ? nf_hook_slow+0xcc/0x1b0 [ 151.136982] br_nf_hook_thresh+0x25b/0x2e0 [ 151.141200] ? setup_pre_routing+0x410/0x410 [ 151.145587] ? __lock_is_held+0xb6/0x140 [ 151.149631] ? br_handle_local_finish+0x20/0x20 [ 151.154283] br_nf_pre_routing_finish_ipv6+0x621/0xc50 [ 151.159541] ? br_handle_local_finish+0x20/0x20 [ 151.164197] ? lock_downgrade+0x6e0/0x6e0 [ 151.168341] br_nf_pre_routing_ipv6+0x417/0x790 [ 151.172994] ? br_validate_ipv6+0xa00/0xa00 [ 151.177295] ? __lock_is_held+0xb6/0x140 [ 151.181336] ? brnf_device_event.cold+0x29/0x29 [ 151.186014] ? skb_pull_rcsum+0x130/0x2c0 [ 151.190173] br_nf_pre_routing+0xdce/0x12c7 [ 151.194483] ? br_nf_pre_routing_finish+0x15b0/0x15b0 [ 151.199664] nf_hook_slow+0xaf/0x1b0 [ 151.203365] br_handle_frame+0x80c/0x1110 [ 151.207500] ? br_handle_frame_finish+0x1830/0x1830 [ 151.212536] ? __lock_is_held+0xb6/0x140 [ 151.216578] ? check_preemption_disabled+0x3c/0x250 [ 151.221579] ? br_handle_local_finish+0x20/0x20 [ 151.226229] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 151.231660] ? br_handle_frame_finish+0x1830/0x1830 [ 151.236661] __netif_receive_skb_core+0x789/0x2ca0 [ 151.241572] ? trace_hardirqs_on+0x10/0x10 [ 151.245789] ? save_trace+0x290/0x290 [ 151.249572] ? enqueue_to_backlog+0xcc0/0xcc0 [ 151.254061] ? process_backlog+0x43e/0x730 [ 151.258279] ? lock_acquire+0x16f/0x430 [ 151.262240] __netif_receive_skb+0x2c/0x1b0 [ 151.266545] ? __netif_receive_skb+0x2c/0x1b0 [ 151.271023] process_backlog+0x21f/0x730 [ 151.275069] ? mark_held_locks+0xb1/0x100 [ 151.279206] net_rx_action+0x490/0xf80 [ 151.283078] ? napi_complete_done+0x4f0/0x4f0 [ 151.287585] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 151.293022] __do_softirq+0x244/0x9a0 [ 151.296807] ? ip6_finish_output2+0x9c0/0x21b0 [ 151.301375] do_softirq_own_stack+0x2a/0x40 [ 151.305678] [ 151.307896] do_softirq.part.0+0x10e/0x160 [ 151.312118] __local_bh_enable_ip+0x154/0x1a0 [ 151.316595] ip6_finish_output2+0x9f3/0x21b0 [ 151.320987] ? ip6_forward_finish+0x480/0x480 [ 151.325461] ? lock_downgrade+0x6e0/0x6e0 [ 151.329593] ip6_finish_output+0x4f4/0xb50 [ 151.333811] ? ip6_finish_output+0x4f4/0xb50 [ 151.338207] ip6_output+0x20f/0x6d0 [ 151.341817] ? ip6_finish_output+0xb50/0xb50 [ 151.346208] ? __lock_is_held+0xb6/0x140 [ 151.350254] ? ip6_fragment+0x32c0/0x32c0 [ 151.354384] ndisc_send_skb+0xb56/0x11e0 [ 151.358445] ? ndisc_error_report+0x190/0x190 [ 151.362928] ndisc_send_ns+0x360/0x7e0 [ 151.366799] ? ndisc_netdev_event+0x3b0/0x3b0 [ 151.371276] ? trace_hardirqs_on_caller+0x400/0x590 [ 151.376274] ? addrconf_dad_work+0x97c/0xff0 [ 151.380667] ? trace_hardirqs_on+0xd/0x10 [ 151.384802] ? __local_bh_enable_ip+0x99/0x1a0 [ 151.389382] addrconf_dad_work+0xa40/0xff0 [ 151.393605] ? addrconf_dad_completed+0xa70/0xa70 [ 151.398437] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 151.403868] process_one_work+0x863/0x1600 [ 151.408089] ? pwq_dec_nr_in_flight+0x2e0/0x2e0 [ 151.412747] worker_thread+0x5d9/0x1050 [ 151.416714] kthread+0x319/0x430 [ 151.420065] ? process_one_work+0x1600/0x1600 [ 151.424539] ? kthread_create_on_node+0xd0/0xd0 [ 151.429191] ret_from_fork+0x24/0x30 [ 151.440018] INFO: rcu_sched detected stalls on CPUs/tasks: [ 151.445675] 1-...: (1 GPs behind) idle=4ca/140000000000000/0 softirq=10252/10259 fqs=24 [ 151.453979] (detected by 0, t=10578 jiffies, g=755, c=754, q=1) [ 151.460124] Sending NMI from CPU 0 to CPUs 1: [ 151.465411] NMI backtrace for cpu 1 [ 151.465414] CPU: 1 PID: 18 Comm: kworker/1:0 Not tainted 4.14.142 #0 [ 151.465417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 151.465420] Workqueue: ipv6_addrconf addrconf_dad_work [ 151.465424] task: ffff8880a9d5e4c0 task.stack: ffff8880a9d68000 [ 151.465426] RIP: 0010:__sanitizer_cov_trace_pc+0x9/0x60 [ 151.465428] RSP: 0018:ffff8880aef06db8 EFLAGS: 00000246 [ 151.465432] RAX: ffff8880a9d5e4c0 RBX: ffff8880916d41f8 RCX: 0000000000000000 [ 151.465435] RDX: 0000000000000007 RSI: ffff8880916d4290 RDI: ffff8880916d42ac [ 151.465437] RBP: ffff8880aef06e10 R08: 0000000000000000 R09: ffff8880a9d5eef0 [ 151.465440] R10: ffff8880a9d5eed0 R11: ffff8880a9d5e4c0 R12: dffffc0000000000 [ 151.465443] R13: ffff8880916d4000 R14: 0000000000000002 R15: ffff8880916d4280 [ 151.465446] FS: 0000000000000000(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 [ 151.465448] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 151.465451] CR2: 00000000004c7308 CR3: 000000000766a000 CR4: 00000000001406e0 [ 151.465454] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 151.465456] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 151.465458] Call Trace: [ 151.465459] [ 151.465461] ? hhf_dequeue+0x53e/0xa60 [ 151.465463] __qdisc_run+0x2b8/0xe00 [ 151.465465] __dev_queue_xmit+0x1571/0x25e0 [ 151.465467] ? br_nf_pre_routing+0xdce/0x12c7 [ 151.465469] ? nf_hook_slow+0xaf/0x1b0 [ 151.465471] ? br_handle_frame+0x80c/0x1110 [ 151.465473] ? __netif_receive_skb_core+0x789/0x2ca0 [ 151.465475] ? netdev_pick_tx+0x300/0x300 [ 151.465477] ? save_trace+0x290/0x290 [ 151.465478] ? kthread+0x319/0x430 [ 151.465480] ? __lock_is_held+0xb6/0x140 [ 151.465483] ? check_preemption_disabled+0x3c/0x250 [ 151.465484] dev_queue_xmit+0x18/0x20 [ 151.465486] ? dev_queue_xmit+0x18/0x20 [ 151.465488] br_dev_queue_push_xmit+0x367/0x530 [ 151.465490] ? trace_hardirqs_on+0xd/0x10 [ 151.465492] br_nf_dev_queue_xmit+0x307/0x1440 [ 151.465494] ? lock_downgrade+0x6e0/0x6e0 [ 151.465496] br_nf_post_routing+0xb80/0xf00 [ 151.465498] ? br_nf_dev_queue_xmit+0x1440/0x1440 [ 151.465500] ? ipv6_skip_exthdr+0x430/0x4d0 [ 151.465503] ? br_nf_pre_routing_finish_bridge+0x9f0/0x9f0 [ 151.465504] nf_hook_slow+0xaf/0x1b0 [ 151.465506] br_forward_finish+0x1b7/0x320 [ 151.465509] ? br_dev_queue_push_xmit+0x530/0x530 [ 151.465511] ? __lock_is_held+0xb6/0x140 [ 151.465513] ? check_preemption_disabled+0x3c/0x250 [ 151.465515] ? br_fdb_add.cold+0x84/0x84 [ 151.465517] ? nf_hook_slow+0xcc/0x1b0 [ 151.465519] br_nf_hook_thresh+0x25b/0x2e0 [ 151.465521] ? save_trace+0x290/0x290 [ 151.465523] ? setup_pre_routing+0x410/0x410 [ 151.465525] ? find_held_lock+0x35/0x130 [ 151.465527] ? br_dev_queue_push_xmit+0x530/0x530 [ 151.465529] br_nf_forward_finish+0x264/0x640 [ 151.465531] ? br_dev_queue_push_xmit+0x530/0x530 [ 151.465533] br_nf_forward_ip+0x5fc/0x11d0 [ 151.465535] ? br_nf_forward_finish+0x640/0x640 [ 151.465537] ? br_handle_vlan+0x4ea/0xab0 [ 151.465539] ? br_nf_hook_thresh+0x2e0/0x2e0 [ 151.465541] nf_hook_slow+0xaf/0x1b0 [ 151.465543] __br_forward+0x312/0x9c0 [ 151.465545] ? br_forward_finish+0x320/0x320 [ 151.465547] ? br_dev_queue_push_xmit+0x530/0x530 [ 151.465548] deliver_clone+0x61/0xc0 [ 151.465550] br_flood+0x43c/0x530 [ 151.465552] br_handle_frame_finish+0xaf0/0x1830 [ 151.465554] ? save_trace+0x290/0x290 [ 151.465556] ? br_handle_local_finish+0x20/0x20 [ 151.465558] ? nf_hook_slow+0xcc/0x1b0 [ 151.465560] br_nf_hook_thresh+0x25b/0x2e0 [ 151.465562] ? setup_pre_routing+0x410/0x410 [ 151.465564] ? __lock_is_held+0xb6/0x140 [ 151.465566] ? br_handle_local_finish+0x20/0x20 [ 151.465568] br_nf_pre_routing_finish_ipv6+0x621/0xc50 [ 151.465570] ? br_handle_local_finish+0x20/0x20 [ 151.465572] ? lock_downgrade+0x6e0/0x6e0 [ 151.465574] br_nf_pre_routing_ipv6+0x417/0x790 [ 151.465576] ? br_validate_ipv6+0xa00/0xa00 [ 151.465578] ? __lock_is_held+0xb6/0x140 [ 151.465580] ? brnf_device_event.cold+0x29/0x29 [ 151.465582] ? skb_pull_rcsum+0x130/0x2c0 [ 151.465584] br_nf_pre_routing+0xdce/0x12c7 [ 151.465587] ? br_nf_pre_routing_finish+0x15b0/0x15b0 [ 151.465588] nf_hook_slow+0xaf/0x1b0 [ 151.465590] br_handle_frame+0x80c/0x1110 [ 151.465592] ? br_handle_frame_finish+0x1830/0x1830 [ 151.465594] ? __lock_is_held+0xb6/0x140 [ 151.465596] ? check_preemption_disabled+0x3c/0x250 [ 151.465598] ? br_handle_local_finish+0x20/0x20 [ 151.465601] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 151.465603] ? br_handle_frame_finish+0x1830/0x1830 [ 151.465605] __netif_receive_skb_core+0x789/0x2ca0 [ 151.465607] ? trace_hardirqs_on+0x10/0x10 [ 151.465608] ? save_trace+0x290/0x290 [ 151.465610] ? enqueue_to_backlog+0xcc0/0xcc0 [ 151.465612] ? process_backlog+0x43e/0x730 [ 151.465613] ? lock_acquire+0x16f/0x430 [ 151.465615] __netif_receive_skb+0x2c/0x1b0 [ 151.465617] ? __netif_receive_skb+0x2c/0x1b0 [ 151.465618] process_backlog+0x21f/0x730 [ 151.465620] ? mark_held_locks+0xb1/0x100 [ 151.465621] net_rx_action+0x490/0xf80 [ 151.465623] ? napi_complete_done+0x4f0/0x4f0 [ 151.465625] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 151.465627] __do_softirq+0x244/0x9a0 [ 151.465628] ? ip6_finish_output2+0x9c0/0x21b0 [ 151.465630] do_softirq_own_stack+0x2a/0x40 [ 151.465631] [ 151.465633] do_softirq.part.0+0x10e/0x160 [ 151.465634] __local_bh_enable_ip+0x154/0x1a0 [ 151.465636] ip6_finish_output2+0x9f3/0x21b0 [ 151.465638] ? ip6_forward_finish+0x480/0x480 [ 151.465640] ? lock_downgrade+0x6e0/0x6e0 [ 151.465641] ip6_finish_output+0x4f4/0xb50 [ 151.465643] ? ip6_finish_output+0x4f4/0xb50 [ 151.465645] ip6_output+0x20f/0x6d0 [ 151.465646] ? ip6_finish_output+0xb50/0xb50 [ 151.465648] ? __lock_is_held+0xb6/0x140 [ 151.465650] ? ip6_fragment+0x32c0/0x32c0 [ 151.465651] ndisc_send_skb+0xb56/0x11e0 [ 151.465653] ? ndisc_error_report+0x190/0x190 [ 151.465654] ndisc_send_ns+0x360/0x7e0 [ 151.465656] ? ndisc_netdev_event+0x3b0/0x3b0 [ 151.465658] ? trace_hardirqs_on_caller+0x400/0x590 [ 151.465660] ? addrconf_dad_work+0x97c/0xff0 [ 151.465661] ? trace_hardirqs_on+0xd/0x10 [ 151.465663] ? __local_bh_enable_ip+0x99/0x1a0 [ 151.465665] addrconf_dad_work+0xa40/0xff0 [ 151.465667] ? addrconf_dad_completed+0xa70/0xa70 [ 151.465669] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 151.465670] process_one_work+0x863/0x1600 [ 151.465672] ? pwq_dec_nr_in_flight+0x2e0/0x2e0 [ 151.465674] worker_thread+0x5d9/0x1050 [ 151.465675] kthread+0x319/0x430 [ 151.465677] ? process_one_work+0x1600/0x1600 [ 151.465679] ? kthread_create_on_node+0xd0/0xd0 [ 151.465680] ret_from_fork+0x24/0x30 [ 151.465681] Code: 4c 89 35 eb 3f be 07 41 be f4 ff ff ff e8 13 3c ee ff 48 c7 05 d5 3f be 07 00 00 00 00 e9 2f ec ff ff 65 48 8b 04 25 40 ee 01 00 <48> 85 c0 74 1a 65 8b 15 4b fb a4 7e 81 e2 00 01 1f 00 75 0b 8b [ 151.465751] rcu_sched kthread starved for 10531 jiffies! g755 c754 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 [ 152.121806] rcu_sched R running task 29824 9 2 0x80000000 [ 152.129018] Call Trace: [ 152.131611] __schedule+0x7b8/0x1cd0 [ 152.135319] ? pci_mmcfg_check_reserved+0x150/0x150 [ 152.140326] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 152.145425] schedule+0x92/0x1c0 [ 152.148788] schedule_timeout+0x43e/0xe10 [ 152.152931] ? usleep_range+0x130/0x130 [ 152.156895] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 152.161990] ? prepare_to_swait+0xcc/0x100 [ 152.166219] ? call_timer_fn+0x670/0x670 [ 152.170277] rcu_gp_kthread+0xbf4/0x1ec0 [ 152.174350] ? force_qs_rnp+0x4d0/0x4d0 [ 152.178322] kthread+0x319/0x430 [ 152.181687] ? force_qs_rnp+0x4d0/0x4d0 [ 152.185656] ? kthread_create_on_node+0xd0/0xd0 [ 152.190320] ret_from_fork+0x24/0x30