[ 43.464576] audit: type=1800 audit(1576750358.337:32): pid=7196 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 54.973989] IPVS: Creating netns size=2712 id=1 [ 54.978929] IPVS: ftp: loaded support on port[0] = 21 [ 55.602039] audit_printk_skb: 3 callbacks suppressed [ 55.607187] audit: type=1400 audit(1576750370.477:34): avc: denied { create } for pid=7397 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 [ 55.634183] audit: type=1400 audit(1576750370.507:35): avc: denied { create } for pid=7397 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 55.658721] audit: type=1400 audit(1576750370.537:36): avc: denied { create } for pid=7397 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 Warning: Permanently added '10.128.0.171' (ECDSA) to the list of known hosts. 2019/12/19 10:12:57 parsed 1 programs 2019/12/19 10:12:57 executed programs: 0 [ 62.948410] IPv6: ADDRCONF(NETDEV_CHANGE): nr4: link becomes ready [ 62.958666] IPv6: ADDRCONF(NETDEV_CHANGE): nr5: link becomes ready [ 62.971373] IPv6: ADDRCONF(NETDEV_CHANGE): nr3: link becomes ready [ 62.980287] IPv6: ADDRCONF(NETDEV_CHANGE): nr0: link becomes ready [ 62.988171] IPv6: ADDRCONF(NETDEV_CHANGE): nr2: link becomes ready [ 62.997563] IPv6: ADDRCONF(NETDEV_CHANGE): nr1: link becomes ready [ 63.016414] IPVS: Creating netns size=2712 id=2 [ 63.021281] IPVS: ftp: loaded support on port[0] = 21 [ 63.088320] IPVS: Creating netns size=2712 id=3 [ 63.094258] IPVS: ftp: loaded support on port[0] = 21 [ 63.235777] chnl_net:caif_netlink_parms(): no params data found [ 63.262828] IPVS: Creating netns size=2712 id=4 [ 63.267866] IPVS: ftp: loaded support on port[0] = 21 [ 63.477229] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.484182] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.493260] device bridge_slave_0 entered promiscuous mode [ 63.518126] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.524949] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.534562] device bridge_slave_1 entered promiscuous mode [ 63.553608] chnl_net:caif_netlink_parms(): no params data found [ 63.561744] IPVS: Creating netns size=2712 id=5 [ 63.566648] IPVS: ftp: loaded support on port[0] = 21 [ 63.655505] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 63.717755] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 63.883741] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.890526] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.900012] device bridge_slave_0 entered promiscuous mode [ 63.928063] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.934564] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.944454] IPVS: Creating netns size=2712 id=6 [ 63.945489] device bridge_slave_1 entered promiscuous mode [ 63.964411] IPVS: ftp: loaded support on port[0] = 21 [ 63.974173] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 64.021383] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 64.054185] chnl_net:caif_netlink_parms(): no params data found [ 64.110574] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 64.170811] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 64.318050] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 64.376857] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 64.384701] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 64.392578] chnl_net:caif_netlink_parms(): no params data found [ 64.435266] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 64.443373] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.450276] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.460083] device bridge_slave_0 entered promiscuous mode [ 64.512700] IPVS: Creating netns size=2712 id=7 [ 64.517546] IPVS: ftp: loaded support on port[0] = 21 [ 64.518579] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.518659] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.523938] device bridge_slave_1 entered promiscuous mode [ 64.673973] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 64.686013] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 64.696442] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 64.741607] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 64.750549] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 64.873980] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.880511] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.889811] device bridge_slave_0 entered promiscuous mode [ 64.933702] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.944296] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.954053] device bridge_slave_1 entered promiscuous mode [ 65.026802] chnl_net:caif_netlink_parms(): no params data found [ 65.066673] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 65.078609] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 65.101651] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 65.136238] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 65.242502] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 65.311817] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 65.320761] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 65.357501] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 65.475223] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 65.525646] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.532203] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.541848] device bridge_slave_0 entered promiscuous mode [ 65.563981] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.570594] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.579651] device bridge_slave_1 entered promiscuous mode [ 65.595116] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 65.634480] chnl_net:caif_netlink_parms(): no params data found [ 65.649490] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 65.669311] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 65.723883] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 65.754086] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 65.852702] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.898316] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 65.929222] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.935711] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.944593] device bridge_slave_0 entered promiscuous mode [ 65.952880] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.959345] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.968833] device bridge_slave_1 entered promiscuous mode [ 65.979020] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 65.991593] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 66.035914] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.045304] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 66.093067] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 66.163484] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 66.247057] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.261762] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 66.282347] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 66.294121] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 66.302037] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.310623] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.316972] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.331341] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.338736] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.348078] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.354505] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.369815] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 66.408176] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 66.430887] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.480189] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 66.501334] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 66.543749] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 66.558806] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.570379] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 66.586616] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 66.593842] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 66.615097] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.623647] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.630044] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.638250] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.651656] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.691253] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.698368] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.708080] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.714685] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.725546] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.774199] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 66.820921] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 66.862709] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.880088] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.886858] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.919253] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.926486] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.934306] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.940669] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.952984] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 66.987134] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.016933] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.035757] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.051614] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 67.067355] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 67.093940] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.110818] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 67.176379] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.183325] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.191967] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.237719] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 67.251532] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.252713] audit: type=1400 audit(1576750382.127:37): avc: denied { associate } for pid=7475 comm="syz-executor.5" name="syz5" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 67.311437] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.395094] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.410578] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.417307] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.430339] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.446976] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.467785] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.491204] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.497619] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.518452] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 67.573807] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.611693] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 67.629486] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.640934] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.647348] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.655215] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.663337] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.669821] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.699806] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.712778] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 67.771315] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 67.791112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.809793] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.825828] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 67.855446] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.867679] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.874321] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.910348] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.922697] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.961446] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.986022] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.992560] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.011124] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.106750] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 68.171374] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready 2019/12/19 10:13:03 executed programs: 6 [ 68.236172] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.271477] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 89.079097] hrtimer: interrupt took 53762 ns [ 173.419054] INFO: rcu_sched detected stalls on CPUs/tasks: [ 173.425266] (detected by 0, t=10502 jiffies, g=-99, c=-100, q=1) [ 173.431620] All QSes seen, last rcu_sched kthread activity 10498 (4294954487-4294943989), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 173.443649] syz-executor.5 R running task 28256 7748 7475 0x00000004 [ 173.451118] 0000000000001d33 ffff88012c007ca8 ffffffff813d414c ffffffff81615a00 [ 173.459443] 0000000041b58ab3 ffffffff868f20bf ffffffff813d3ec0 ffff88012c007c68 [ 173.467766] ffffffff81491fd4 0000000000000000 ffffffff87651000 0000000000000002 [ 173.475901] Call Trace: [ 173.478473] [] sched_show_task+0x28c/0x400 [ 173.485092] [] ? power_down+0xbf/0xbf [ 173.490529] [] ? SyS_sched_rr_get_interval+0x2b0/0x2b0 [ 173.497444] [] ? rcu_check_callbacks+0x1814/0x2010 [ 173.504005] [] rcu_check_callbacks+0x1c5c/0x2010 [ 173.510398] [] ? tick_sched_do_timer+0x80/0x80 [ 173.516617] [] update_process_times+0x34/0x60 [ 173.522744] [] tick_sched_handle.isra.19+0x44/0xe0 [ 173.529306] [] tick_sched_timer+0x64/0xd0 [ 173.535084] [] __hrtimer_run_queues+0x2d4/0xbf0 [ 173.541483] [] ? enqueue_hrtimer+0x380/0x380 [ 173.547523] [] ? ktime_get_update_offsets_now+0x139/0x350 [ 173.554690] [] ? hrtimer_interrupt+0x139/0x470 [ 173.560904] [] hrtimer_interrupt+0x19d/0x470 [ 173.566943] [] local_apic_timer_interrupt+0x6e/0xf0 [ 173.573592] [] smp_apic_timer_interrupt+0x76/0xa0 [ 173.580065] [] apic_timer_interrupt+0x8c/0xa0 [ 173.586188] [] ? _raw_spin_unlock_irqrestore+0x97/0xd0 [ 173.593869] [] force_sig_info+0x1f5/0x2a0 [ 173.599652] [] force_sig_info_fault.constprop.30+0x194/0x290 [ 173.607105] [] ? is_prefetch.isra.27+0x154/0x300 [ 173.613504] [] ? is_prefetch.isra.27+0x300/0x300 [ 173.619891] [] ? setup_sigcontext+0x7d0/0x7d0 [ 173.626023] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 173.632760] [] __bad_area_nosemaphore+0x228/0x410 [ 173.639325] [] bad_area+0x64/0x80 [ 173.644529] [] __do_page_fault+0x6f4/0x9e0 [ 173.650407] [] do_page_fault+0x4a/0x60 [ 173.655945] [] page_fault+0x28/0x30 [ 173.661301] rcu_sched kthread starved for 10498 jiffies! g18446744073709551517 c18446744073709551516 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 [ 173.673684] rcu_sched R running task 29392 8 2 0x00000000 [ 173.681139] ffff88012b07fac8 ffff88012c120400 ffff88012c120d90 ffff88012c120d68 [ 173.689232] ffff88012c120418 ffff88012b0701c8 1ffff10000000000 ffff88012b05a180 [ 173.697311] ffff88012b0701c0 ffff88012b078000 ffffed002560f001 ffff88012b078008 [ 173.705368] Call Trace: [ 173.707942] [] schedule+0x9a/0x1c0 [ 173.713116] [] schedule_timeout+0x2e5/0x670 [ 173.719081] [] ? usleep_range+0x130/0x130 [ 173.724866] [] ? prepare_to_swait+0x11e/0x220 [ 173.731862] [] ? swake_up_all+0x370/0x370 [ 173.737642] [] ? init_timer_on_stack_key+0xe0/0xe0 [ 173.744202] [] ? prepare_to_swait_event+0x6c/0xf0 [ 173.750681] [] rcu_gp_kthread+0xee2/0x1f70 [ 173.756547] [] ? pick_next_task_fair+0xa8e/0x1400 [ 173.763023] [] ? force_qs_rnp+0x400/0x400 [ 173.768907] [] ? trace_hardirqs_on_caller+0x44c/0x5e0 [ 173.775743] [] ? _raw_spin_unlock_irq+0x60/0x80 [ 173.782044] [] ? __schedule+0x1206/0x1c00 [ 173.787829] [] ? force_qs_rnp+0x400/0x400 [ 173.793790] [] kthread+0x209/0x2d0 [ 173.798966] [] ? kthread_create_on_node+0x390/0x390 [ 173.805623] [] ret_from_fork+0x22/0x50 [ 173.811146] [] ? kthread_create_on_node+0x390/0x390 [ 173.817892] sched: RT throttling activated [ 173.822149] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 173.827926] (detected by 0, t=10538 jiffies, g=2069, c=2068, q=104) [ 173.834544] All QSes seen, last rcu_preempt kthread activity 10537 (4294954526-4294943989), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 173.847703] syz-executor.5 R running task 28256 7748 7475 0x0000000c [ 173.855162] 0000000000001d33 ffff88012c007ca8 ffffffff813d414c ffffffff81615a00 [ 173.864171] 0000000041b58ab3 ffffffff868f20bf ffffffff813d3ec0 ffff88012c007c68 [ 173.872217] ffffffff81491fd4 0000000000000000 ffffffff87651000 0000000000000002 [ 173.880289] Call Trace: [ 173.882857] [] sched_show_task+0x28c/0x400 [ 173.889476] [] ? power_down+0xbf/0xbf [ 173.894908] [] ? SyS_sched_rr_get_interval+0x2b0/0x2b0 [ 173.901819] [] ? rcu_check_callbacks+0x1814/0x2010 [ 173.908381] [] rcu_check_callbacks+0x1c5c/0x2010 [ 173.914775] [] ? tick_sched_do_timer+0x80/0x80 [ 173.921600] [] update_process_times+0x34/0x60 [ 173.927843] [] tick_sched_handle.isra.19+0x44/0xe0 [ 173.934406] [] tick_sched_timer+0x64/0xd0 [ 173.940188] [] __hrtimer_run_queues+0x2d4/0xbf0 [ 173.946491] [] ? enqueue_hrtimer+0x380/0x380 [ 173.952536] [] ? ktime_get_update_offsets_now+0x139/0x350 [ 173.959717] [] ? hrtimer_interrupt+0x20d/0x470 [ 173.965929] [] hrtimer_interrupt+0x19d/0x470 [ 173.971977] [] local_apic_timer_interrupt+0x6e/0xf0 [ 173.978655] [] smp_apic_timer_interrupt+0x76/0xa0 [ 173.985139] [] apic_timer_interrupt+0x8c/0xa0 [ 173.991264] [] ? _raw_spin_unlock_irqrestore+0x97/0xd0 [ 174.000070] [] force_sig_info+0x1f5/0x2a0 [ 174.005853] [] force_sig_info_fault.constprop.30+0x194/0x290 [ 174.013287] [] ? is_prefetch.isra.27+0x154/0x300 [ 174.020108] [] ? is_prefetch.isra.27+0x300/0x300 [ 174.026499] [] ? setup_sigcontext+0x7d0/0x7d0 [ 174.032626] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 174.039362] [] __bad_area_nosemaphore+0x228/0x410 [ 174.045838] [] bad_area+0x64/0x80 [ 174.050924] [] __do_page_fault+0x6f4/0x9e0 [ 174.056792] [] do_page_fault+0x4a/0x60 [ 174.062485] [] page_fault+0x28/0x30 [ 174.067758] rcu_preempt kthread starved for 10537 jiffies! g2069 c2068 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 [ 174.077745] rcu_preempt R running task 29392 7 2 0x00000000 [ 174.085190] ffff88012b06fac8 ffff88012c120400 ffff88012c120d90 ffff88012c120d68 [ 174.093269] ffff88012c120418 ffff88012b05a188 1ffff10000000000 ffff880129d64400 [ 174.101329] ffff88012b05a180 ffff88012b068000 ffffed002560d001 ffff88012b068008 [ 174.109518] Call Trace: [ 174.112097] [] schedule+0x9a/0x1c0 [ 174.117273] [] schedule_timeout+0x2e5/0x670 [ 174.123254] [] ? usleep_range+0x130/0x130 [ 174.129038] [] ? prepare_to_swait+0x11e/0x220 [ 174.135165] [] ? swake_up_all+0x370/0x370 [ 174.140956] [] ? init_timer_on_stack_key+0xe0/0xe0 [ 174.147520] [] ? prepare_to_swait_event+0x6c/0xf0 [ 174.153995] [] rcu_gp_kthread+0xee2/0x1f70 [ 174.159866] [] ? pick_next_task_fair+0xa8e/0x1400 [ 174.167312] [] ? force_qs_rnp+0x400/0x400 [ 174.173099] [] ? trace_hardirqs_on_caller+0x44c/0x5e0 [ 174.179930] [] ? _raw_spin_unlock_irq+0x60/0x80 [ 174.186255] [] ? __schedule+0x1206/0x1c00 [ 174.192037] [] ? force_qs_rnp+0x400/0x400 [ 174.197818] [] kthread+0x209/0x2d0 [ 174.202990] [] ? kthread_create_on_node+0x390/0x390 [ 174.209643] [] ret_from_fork+0x22/0x50 [ 174.215164] [] ? kthread_create_on_node+0x390/0x390