[info] Using makefile-style concurrent boot in runlevel 2. [....] 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 syzkaller login: [ 58.805902] IPVS: Creating netns size=2720 id=1 [ 58.810748] IPVS: ftp: loaded support on port[0] = 21 Warning: Permanently added '10.128.15.231' (ECDSA) to the list of known hosts. 2019/04/09 21:13:32 parsed 1 programs 2019/04/09 21:13:32 executed programs: 0 [ 67.023968] IPv6: ADDRCONF(NETDEV_CHANGE): nr3: link becomes ready [ 67.033497] IPv6: ADDRCONF(NETDEV_CHANGE): nr5: link becomes ready [ 67.043683] IPv6: ADDRCONF(NETDEV_CHANGE): nr2: link becomes ready [ 67.052098] IPv6: ADDRCONF(NETDEV_CHANGE): nr4: link becomes ready [ 67.059801] IPv6: ADDRCONF(NETDEV_CHANGE): nr1: link becomes ready [ 67.066891] IPv6: ADDRCONF(NETDEV_CHANGE): nr0: link becomes ready [ 67.076621] IPVS: Creating netns size=2720 id=2 [ 67.081359] IPVS: ftp: loaded support on port[0] = 21 [ 67.101301] IPVS: Creating netns size=2720 id=3 [ 67.106547] IPVS: ftp: loaded support on port[0] = 21 [ 67.145899] chnl_net:caif_netlink_parms(): no params data found [ 67.156196] IPVS: Creating netns size=2720 id=4 [ 67.160955] IPVS: ftp: loaded support on port[0] = 21 [ 67.196737] IPVS: Creating netns size=2720 id=5 [ 67.201497] IPVS: ftp: loaded support on port[0] = 21 [ 67.243430] chnl_net:caif_netlink_parms(): no params data found [ 67.292618] chnl_net:caif_netlink_parms(): no params data found [ 67.303611] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.310306] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.317300] device bridge_slave_0 entered promiscuous mode [ 67.333979] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.341287] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.348446] device bridge_slave_1 entered promiscuous mode [ 67.362814] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 67.375148] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 67.390527] IPVS: Creating netns size=2720 id=6 [ 67.393604] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 67.394124] team0: Port device team_slave_0 added [ 67.394455] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 67.394952] team0: Port device team_slave_1 added [ 67.395192] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 67.404895] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 67.420084] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.420101] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.420685] device bridge_slave_0 entered promiscuous mode [ 67.421423] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.421448] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.422083] device bridge_slave_1 entered promiscuous mode [ 67.443657] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 67.443811] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.443859] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.444455] device bridge_slave_0 entered promiscuous mode [ 67.445204] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.445245] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.445840] device bridge_slave_1 entered promiscuous mode [ 67.450841] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 67.484049] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 67.484199] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 67.500795] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 67.501246] team0: Port device team_slave_0 added [ 67.501586] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 67.501994] team0: Port device team_slave_1 added [ 67.503339] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.503365] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.503702] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.503729] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.506933] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 67.508213] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 67.508549] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 67.533776] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 67.558163] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 67.558619] team0: Port device team_slave_0 added [ 67.578953] chnl_net:caif_netlink_parms(): no params data found [ 67.585840] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 67.586254] team0: Port device team_slave_1 added [ 67.586485] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 67.586712] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 67.601623] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 67.601786] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 67.607634] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.607654] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.607750] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.607775] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.618705] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 67.618897] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 67.623544] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.623564] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.623660] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.623685] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.666922] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.666968] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.667641] device bridge_slave_0 entered promiscuous mode [ 67.677049] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.678460] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 67.687825] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.692279] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.704349] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.724396] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.743727] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.769751] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.776274] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.845104] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.845123] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.845700] device bridge_slave_1 entered promiscuous mode [ 67.857578] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 67.858974] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 67.858977] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.876780] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.877086] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.877109] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.877357] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.877624] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.877646] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.878263] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.878660] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.879740] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 67.901351] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.902628] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 67.908018] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 67.908022] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.920101] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.926889] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.927210] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.927488] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.927745] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.927969] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.927991] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.929527] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 67.929948] team0: Port device team_slave_0 added [ 67.930303] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 67.930712] team0: Port device team_slave_1 added [ 67.930950] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 67.931191] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 67.968302] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.968565] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.968586] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.969117] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.969449] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.980892] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.981183] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.981456] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.987936] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.989226] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 67.991728] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 67.991732] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.003517] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.003974] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.004203] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.004224] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.004450] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.004668] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.004687] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.018207] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.018557] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.023257] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 68.023460] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 68.028685] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 68.042101] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.048486] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.055169] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.069454] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.117776] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.122264] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.123783] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 68.126573] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.132929] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 68.132933] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.137473] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.137689] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.137711] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.137984] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.160241] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.160518] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.160542] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.164312] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.177842] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.178142] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.180473] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.182672] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.186926] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.273854] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.538340] IPVS: ftp: loaded support on port[0] = 21 [ 68.571057] IPVS: Creating netns size=2720 id=7 [ 68.583502] IPVS: ftp: loaded support on port[0] = 21 [ 68.669266] chnl_net:caif_netlink_parms(): no params data found [ 68.710121] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.716962] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.723703] device bridge_slave_0 entered promiscuous mode [ 68.749566] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.756422] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.763267] device bridge_slave_1 entered promiscuous mode [ 68.777960] chnl_net:caif_netlink_parms(): no params data found [ 68.793267] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 68.803075] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 68.820565] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 68.827895] team0: Port device team_slave_0 added [ 68.837933] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 68.845325] team0: Port device team_slave_1 added [ 68.853650] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 68.863967] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 68.871589] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.878143] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.885371] device bridge_slave_0 entered promiscuous mode [ 68.891745] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.898267] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.905401] device bridge_slave_1 entered promiscuous mode [ 68.929958] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 68.938614] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 68.955871] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 68.962684] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 68.969739] team0: Port device team_slave_0 added [ 68.975061] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 68.981865] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 68.988956] team0: Port device team_slave_1 added [ 68.995162] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 69.002553] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 69.022042] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.029148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.035723] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.042037] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.056554] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 69.063438] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 69.078715] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.085208] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.091786] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.098135] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.155919] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.163561] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 69.171215] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.181015] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.188944] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.195996] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.204823] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.212936] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 69.225306] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 69.231383] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.237797] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.249110] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.256732] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.263063] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.270282] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.277870] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.284205] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.299031] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 69.305196] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.311904] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.326301] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.333867] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.340223] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.347493] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.355631] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.361971] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.375325] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.382979] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.391363] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.399229] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.410778] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.418536] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.426181] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.439684] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.451338] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.459021] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.487691] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.513802] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 284.625320] INFO: task syz-executor.3:6875 blocked for more than 140 seconds. [ 284.632867] Not tainted 4.11.0-rc5+ #1 [ 284.637494] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.645621] syz-executor.3 D28808 6875 6595 0x00000004 [ 284.651366] Call Trace: [ 284.654158] __schedule+0x935/0x1eb0 [ 284.657996] ? update_curr+0x299/0x6c0 [ 284.661892] ? pci_mmcfg_check_reserved+0x110/0x110 [ 284.667437] schedule+0x92/0x1b0 [ 284.670834] schedule_timeout+0x580/0xc30 [ 284.675108] ? _raw_spin_unlock_irqrestore+0x6a/0xe0 [ 284.680225] ? usleep_range+0x140/0x140 [ 284.684268] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 284.689432] ? lock_acquire+0x183/0x460 [ 284.693620] ? try_to_wake_up+0x7e/0xdc0 [ 284.697786] ? lock_acquire+0x183/0x460 [ 284.701940] ? wait_for_completion+0x8e/0x3f0 [ 284.706506] ? _raw_spin_unlock_irq+0x27/0x80 [ 284.711000] ? trace_hardirqs_on_caller+0x44c/0x5e0 [ 284.716143] wait_for_completion+0x26b/0x3f0 [ 284.721068] ? wait_for_completion+0x26b/0x3f0 [ 284.725902] ? wait_for_completion_interruptible+0x440/0x440 [ 284.732174] ? wake_up_q+0xe0/0xe0 [ 284.735871] kthread_stop+0xc2/0x610 [ 284.739988] vivid_stop_generating_vid_cap+0x195/0x6c0 [ 284.745508] ? __mutex_lock+0x38c/0x1560 [ 284.749668] vid_cap_stop_streaming+0x71/0xe0 [ 284.754199] __vb2_queue_cancel+0x99/0x6e0 [ 284.758922] vb2_core_streamoff+0x62/0x140 [ 284.763296] __vb2_cleanup_fileio+0x69/0x150 [ 284.767765] vb2_core_queue_release+0xf/0x70 [ 284.772171] _vb2_fop_release+0x1af/0x260 [ 284.776465] vb2_fop_release+0x6a/0xd0 [ 284.780368] vivid_fop_release+0x163/0x400 [ 284.784713] v4l2_release+0xeb/0x210 [ 284.788566] __fput+0x25c/0x730 [ 284.791918] ____fput+0x9/0x10 [ 284.795176] task_work_run+0xd9/0x150 [ 284.799008] exit_to_usermode_loop+0x185/0x1c0 [ 284.803598] syscall_return_slowpath+0x24f/0x2d0 [ 284.808464] entry_SYSCALL_64_fastpath+0xc4/0xc6 [ 284.813360] RIP: 0033:0x411e31 [ 284.816594] RSP: 002b:00007ffce5202990 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 284.824432] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000411e31 [ 284.831973] RDX: 0000000000000000 RSI: 0000000000740110 RDI: 0000000000000003 [ 284.839404] RBP: 0000000000000000 R08: 0000000000740108 R09: 000000000001118b [ 284.846852] R10: 00007ffce52028b0 R11: 0000000000000293 R12: 0000000000000001 [ 284.854121] R13: 00007ffce52029d0 R14: 0000000000000000 R15: 00007ffce52029e0 [ 284.861633] [ 284.861633] Showing all locks held in the system: [ 284.868006] 2 locks held by khungtaskd/980: [ 284.872328] #0: (rcu_read_lock){......}, at: [] watchdog+0x109/0x9e0 [ 284.880883] #1: (tasklist_lock){.+.+..}, at: [] debug_show_all_locks+0x70/0x280 [ 284.890680] 1 lock held by rsyslogd/6393: [ 284.894992] #0: (&f->f_pos_lock){+.+.+.}, at: [] __fdget_pos+0x84/0xb0 [ 284.903555] 2 locks held by getty/6483: [ 284.907594] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x2d/0x40 [ 284.917398] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x1d1/0x1660 [ 284.927382] 2 locks held by getty/6484: [ 284.931639] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x2d/0x40 [ 284.940767] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x1d1/0x1660 [ 284.951022] 2 locks held by getty/6485: [ 284.955305] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x2d/0x40 [ 284.964181] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x1d1/0x1660 [ 284.973776] 2 locks held by getty/6486: [ 284.977800] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x2d/0x40 [ 284.986700] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x1d1/0x1660 [ 284.996348] 2 locks held by getty/6487: [ 285.000325] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x2d/0x40 [ 285.009629] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x1d1/0x1660 [ 285.019298] 2 locks held by getty/6488: [ 285.023262] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x2d/0x40 [ 285.032341] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x1d1/0x1660 [ 285.041992] 2 locks held by getty/6489: [ 285.046041] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x2d/0x40 [ 285.055056] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x1d1/0x1660 [ 285.064865] [ 285.066537] ============================================= [ 285.066537] [ 285.074334] NMI backtrace for cpu 0 [ 285.078249] CPU: 0 PID: 980 Comm: khungtaskd Not tainted 4.11.0-rc5+ #1 [ 285.085148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 285.094582] Call Trace: [ 285.097571] dump_stack+0xe6/0x120 [ 285.101114] nmi_cpu_backtrace+0x137/0x160 [ 285.106134] ? irq_force_complete_move+0x430/0x430 [ 285.111085] nmi_trigger_cpumask_backtrace+0xf8/0x1a0 [ 285.116309] arch_trigger_cpumask_backtrace+0x14/0x20 [ 285.121766] watchdog+0x62d/0x9e0 [ 285.125246] ? trace_hardirqs_on_caller+0x44c/0x5e0 [ 285.130297] kthread+0x2c9/0x3d0 [ 285.133684] ? reset_hung_task_detector+0x10/0x10 [ 285.138684] ? kthread_create_on_node+0xa0/0xa0 [ 285.143433] ret_from_fork+0x31/0x40 [ 285.147390] Sending NMI from CPU 0 to CPUs 1: [ 285.152019] NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff85eb2376 [ 285.153040] Kernel panic - not syncing: hung_task: blocked tasks [ 285.153047] CPU: 0 PID: 980 Comm: khungtaskd Not tainted 4.11.0-rc5+ #1 [ 285.153050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 285.153052] Call Trace: [ 285.153071] dump_stack+0xe6/0x120 [ 285.153106] panic+0x1b6/0x358 [ 285.153112] ? percpu_up_read_preempt_enable.constprop.37+0xb9/0xb9 [ 285.153120] ? preempt_schedule+0x4e/0x60 [ 285.153132] watchdog+0x63e/0x9e0 [ 285.153139] ? trace_hardirqs_on_caller+0x44c/0x5e0 [ 285.153149] kthread+0x2c9/0x3d0 [ 285.153153] ? reset_hung_task_detector+0x10/0x10 [ 285.153156] ? kthread_create_on_node+0xa0/0xa0 [ 285.153163] ret_from_fork+0x31/0x40 [ 285.228180] Kernel Offset: disabled [ 285.231870] Rebooting in 86400 seconds..