[ 17.118304] WARNING: CPU: 0 PID: 83 at /build/buildd/linux-3.16.0/drivers/gpu/drm/i915/intel_dp.c:3122 intel_dp_link_down+0x1a9/0x230 [i915]() [ 17.118306] Modules linked in: intel_rapl x86_pkg_temp_thermal intel_powerclamp dm_crypt snd_hda_codec_realtek coretemp snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel kvm_intel snd_hda_controller kvm snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event joydev crct10dif_pclmul snd_rawmidi crc32_pclmul ghash_clmulni_intel snd_seq aesni_intel snd_seq_device aes_x86_64 snd_timer dm_multipath lrw scsi_dh serio_raw snd bnep mei_me lpc_ich mei soundcore rfcomm gf128mul shpchp bluetooth glue_helper ablk_helper mac_hid cryptd intel_smartconnect tpm_infineon 6lowpan_iphc parport_pc ppdev lp parport squashfs overlayfs hid_logitech_dj usbhid hid uas usb_storage nls_iso8859_1 dm_mirror dm_region_hash dm_log mxm_wmi i915 igb psmouse e1000e firewire_ohci drm_kms_helper dca firewire_core drm ahci [ 17.118333] ptp crc_itu_t i2c_algo_bit libahci pps_core wmi video [ 17.118337] CPU: 0 PID: 83 Comm: kworker/0:1 Tainted: G W 3.16.0-10-generic #15-Ubuntu [ 17.118338] Hardware name: Gigabyte Technology Co., Ltd. Z87X-UD5H/Z87X-UD5H-CF, BIOS 10c 06/12/2014 [ 17.118347] Workqueue: events i915_hotplug_work_func [i915] [ 17.118349] 0000000000000009 ffff8807ee2f7c88 ffffffff82777e9f 0000000000000000 [ 17.118351] ffff8807ee2f7cc0 ffffffff8206fced ffff8807e8b20000 0000000080000002 [ 17.118352] ffff8807ee642800 0000000000000003 ffff8807ee6460d8 ffff8807ee2f7cd0 [ 17.118355] Call Trace: [ 17.118359] [] dump_stack+0x45/0x56 [ 17.118363] [] warn_slowpath_common+0x7d/0xa0 [ 17.118365] [] warn_slowpath_null+0x1a/0x20 [ 17.118375] [] intel_dp_link_down+0x1a9/0x230 [i915] [ 17.118386] [] intel_dp_complete_link_train+0x105/0x390 [i915] [ 17.118396] [] intel_dp_check_link_status+0xb8/0x1b0 [i915] [ 17.118406] [] intel_ddi_hot_plug+0x28/0x30 [i915] [ 17.118414] [] i915_hotplug_work_func+0x1f4/0x340 [i915] [ 17.118417] [] process_one_work+0x182/0x4e0 [ 17.118418] [] worker_thread+0x20c/0x6a0 [ 17.118421] [] ? __schedule+0x39d/0x890 [ 17.118423] [] ? process_one_work+0x4e0/0x4e0 [ 17.118425] [] kthread+0xdb/0x100 [ 17.118427] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 17.118429] [] ret_from_fork+0x7c/0xb0 [ 17.118431] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 17.118433] ---[ end trace eb9925ee23e16724 ]--- [ 17.319610] ------------[ cut here ]------------ [ 17.319634] WARNING: CPU: 0 PID: 83 at /build/buildd/linux-3.16.0/drivers/gpu/drm/i915/intel_dp.c:3122 intel_dp_link_down+0x1a9/0x230 [i915]() [ 17.319635] Modules linked in: intel_rapl x86_pkg_temp_thermal intel_powerclamp dm_crypt snd_hda_codec_realtek coretemp snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel kvm_intel snd_hda_controller kvm snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event joydev crct10dif_pclmul snd_rawmidi crc32_pclmul ghash_clmulni_intel snd_seq aesni_intel snd_seq_device aes_x86_64 snd_timer dm_multipath lrw scsi_dh serio_raw snd bnep mei_me lpc_ich mei soundcore rfcomm gf128mul shpchp bluetooth glue_helper ablk_helper mac_hid cryptd intel_smartconnect tpm_infineon 6lowpan_iphc parport_pc ppdev lp parport squashfs overlayfs hid_logitech_dj usbhid hid uas usb_storage nls_iso8859_1 dm_mirror dm_region_hash dm_log mxm_wmi i915 igb psmouse e1000e firewire_ohci drm_kms_helper dca firewire_core drm ahci [ 17.319659] ptp crc_itu_t i2c_algo_bit libahci pps_core wmi video [ 17.319663] CPU: 0 PID: 83 Comm: kworker/0:1 Tainted: G W 3.16.0-10-generic #15-Ubuntu [ 17.319664] Hardware name: Gigabyte Technology Co., Ltd. Z87X-UD5H/Z87X-UD5H-CF, BIOS 10c 06/12/2014 [ 17.319673] Workqueue: events i915_hotplug_work_func [i915] [ 17.319674] 0000000000000009 ffff8807ee2f7c88 ffffffff82777e9f 0000000000000000 [ 17.319676] ffff8807ee2f7cc0 ffffffff8206fced ffff8807e8b20000 0000000080000002 [ 17.319678] ffff8807ee642800 0000000000000003 ffff8807ee6460d8 ffff8807ee2f7cd0 [ 17.319680] Call Trace: [ 17.319684] [] dump_stack+0x45/0x56 [ 17.319687] [] warn_slowpath_common+0x7d/0xa0 [ 17.319689] [] warn_slowpath_null+0x1a/0x20 [ 17.319699] [] intel_dp_link_down+0x1a9/0x230 [i915] [ 17.319709] [] intel_dp_complete_link_train+0x105/0x390 [i915] [ 17.319718] [] intel_dp_check_link_status+0xb8/0x1b0 [i915] [ 17.319728] [] intel_ddi_hot_plug+0x28/0x30 [i915] [ 17.319735] [] i915_hotplug_work_func+0x1f4/0x340 [i915] [ 17.319738] [] process_one_work+0x182/0x4e0 [ 17.319740] [] worker_thread+0x6b/0x6a0 [ 17.319742] [] ? __schedule+0x39d/0x890 [ 17.319744] [] ? process_one_work+0x4e0/0x4e0 [ 17.319746] [] kthread+0xdb/0x100 [ 17.319748] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 17.319749] [] ret_from_fork+0x7c/0xb0 [ 17.319751] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 17.319752] ---[ end trace eb9925ee23e16725 ]--- [ 17.475568] ------------[ cut here ]------------ [ 17.475592] WARNING: CPU: 0 PID: 83 at /build/buildd/linux-3.16.0/drivers/gpu/drm/i915/intel_dp.c:3122 intel_dp_link_down+0x1a9/0x230 [i915]() [ 17.475593] Modules linked in: intel_rapl x86_pkg_temp_thermal intel_powerclamp dm_crypt snd_hda_codec_realtek coretemp snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel kvm_intel snd_hda_controller kvm snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event joydev crct10dif_pclmul snd_rawmidi crc32_pclmul ghash_clmulni_intel snd_seq aesni_intel snd_seq_device aes_x86_64 snd_timer dm_multipath lrw scsi_dh serio_raw snd bnep mei_me lpc_ich mei soundcore rfcomm gf128mul shpchp bluetooth glue_helper ablk_helper mac_hid cryptd intel_smartconnect tpm_infineon 6lowpan_iphc parport_pc ppdev lp parport squashfs overlayfs hid_logitech_dj usbhid hid uas usb_storage nls_iso8859_1 dm_mirror dm_region_hash dm_log mxm_wmi i915 igb psmouse e1000e firewire_ohci drm_kms_helper dca firewire_core drm ahci [ 17.475616] ptp crc_itu_t i2c_algo_bit libahci pps_core wmi video [ 17.475620] CPU: 0 PID: 83 Comm: kworker/0:1 Tainted: G W 3.16.0-10-generic #15-Ubuntu [ 17.475621] Hardware name: Gigabyte Technology Co., Ltd. Z87X-UD5H/Z87X-UD5H-CF, BIOS 10c 06/12/2014 [ 17.475630] Workqueue: events i915_hotplug_work_func [i915] [ 17.475631] 0000000000000009 ffff8807ee2f7c88 ffffffff82777e9f 0000000000000000 [ 17.475633] ffff8807ee2f7cc0 ffffffff8206fced ffff8807e8b20000 0000000080000002 [ 17.475635] ffff8807ee642800 0000000000000003 ffff8807ee6460d8 ffff8807ee2f7cd0 [ 17.475636] Call Trace: [ 17.475641] [] dump_stack+0x45/0x56 [ 17.475644] [] warn_slowpath_common+0x7d/0xa0 [ 17.475646] [] warn_slowpath_null+0x1a/0x20 [ 17.475656] [] intel_dp_link_down+0x1a9/0x230 [i915] [ 17.475666] [] intel_dp_complete_link_train+0x105/0x390 [i915] [ 17.475676] [] intel_dp_check_link_status+0xb8/0x1b0 [i915] [ 17.475685] [] intel_ddi_hot_plug+0x28/0x30 [i915] [ 17.475693] [] i915_hotplug_work_func+0x1f4/0x340 [i915] [ 17.475695] [] process_one_work+0x182/0x4e0 [ 17.475696] [] worker_thread+0x6b/0x6a0 [ 17.475699] [] ? __schedule+0x39d/0x890 [ 17.475700] [] ? process_one_work+0x4e0/0x4e0 [ 17.475703] [] kthread+0xdb/0x100 [ 17.475705] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 17.475706] [] ret_from_fork+0x7c/0xb0 [ 17.475708] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 17.475709] ---[ end trace eb9925ee23e16726 ]--- [ 17.527854] systemd-logind[2701]: New seat seat0. [ 17.528115] systemd-logind[2701]: Watching system buttons on /dev/input/event1 (Power Button) [ 17.528141] systemd-logind[2701]: Watching system buttons on /dev/input/event2 (Video Bus) [ 17.528164] systemd-logind[2701]: Watching system buttons on /dev/input/event0 (Power Button) [ 17.528831] systemd-logind[2701]: Failed to start unit user@999.service: Unknown unit: user@999.service [ 17.528834] systemd-logind[2701]: Failed to start user service: Unknown unit: user@999.service [ 17.529187] systemd-logind[2701]: New session c1 of user ubuntu. [ 17.529719] systemd-logind[2701]: New session c2 of user ubuntu. [ 17.530204] systemd-logind[2701]: New session c3 of user ubuntu. [ 17.530707] systemd-logind[2701]: New session c4 of user ubuntu. [ 17.531194] systemd-logind[2701]: New session c5 of user ubuntu. [ 17.531673] systemd-logind[2701]: New session c6 of user ubuntu. [ 17.672453] [drm] HPD interrupt storm detected on connector DP-1: switching from hotplug detection to polling [ 17.688673] e1000e 0000:00:19.0: irq 48 for MSI/MSI-X [ 17.789263] e1000e 0000:00:19.0: irq 48 for MSI/MSI-X [ 17.789334] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready [ 17.881331] init: alsa-restore main process (2254) terminated with status 99 [ 18.034717] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 18.288647] WARNING! power/level is deprecated; use power/control instead [ 18.298399] usblp 3-10.4:1.0: usblp1: USB Bidirectional printer dev 6 if 0 alt 1 proto 2 vid 0x03F0 pid 0x0817 [ 18.298414] usbcore: registered new interface driver usblp [ 18.501299] systemd-logind[2701]: New session c7 of user ubuntu. [ 18.501313] systemd-logind[2701]: Linked /tmp/.X11-unix/X0 to /run/user/999/X11-display. [ 19.260226] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 19.260248] xhci_hcd 0000:00:14.0: Setup ERROR: setup context command for slot 4. [ 19.260250] usb 3-10.1: hub failed to enable device, error -22 [ 19.348015] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 19.348056] xhci_hcd 0000:00:14.0: Setup ERROR: setup context command for slot 4. [ 19.348057] usb 3-10.1: hub failed to enable device, error -22 [ 19.435953] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 19.452904] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807e81e8300 [ 19.452906] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807e81e8348 [ 19.453088] usb 3-10.1: ep 0x81 - rounding interval to 128 microframes, ep desc says 255 microframes [ 19.453090] usb 3-10.1: ep 0x2 - rounding interval to 128 microframes, ep desc says 255 microframes [ 20.696354] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 20.696381] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready [ 27.461302] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 27.461343] xhci_hcd 0000:00:14.0: Setup ERROR: setup context command for slot 4. [ 27.461345] usb 3-10.1: hub failed to enable device, error -22 [ 27.549109] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 27.549146] xhci_hcd 0000:00:14.0: Setup ERROR: setup context command for slot 4. [ 27.549148] usb 3-10.1: hub failed to enable device, error -22 [ 27.637035] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 27.653935] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807e81e8300 [ 27.653937] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807e81e8348 [ 27.654085] usb 3-10.1: ep 0x81 - rounding interval to 128 microframes, ep desc says 255 microframes [ 27.654095] usb 3-10.1: ep 0x2 - rounding interval to 128 microframes, ep desc says 255 microframes [ 37.409317] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 37.409359] xhci_hcd 0000:00:14.0: Setup ERROR: setup context command for slot 4. [ 37.409361] usb 3-10.1: hub failed to enable device, error -22 [ 37.497063] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 37.497110] xhci_hcd 0000:00:14.0: Setup ERROR: setup context command for slot 4. [ 37.497113] usb 3-10.1: hub failed to enable device, error -22 [ 37.584993] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 37.601842] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807e81e8300 [ 37.601844] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807e81e8348 [ 37.601847] usb 3-10.1: ep 0x81 - rounding interval to 128 microframes, ep desc says 255 microframes [ 37.601966] usb 3-10.1: ep 0x2 - rounding interval to 128 microframes, ep desc says 255 microframes [ 119.487402] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 119.487427] xhci_hcd 0000:00:14.0: Setup ERROR: setup context command for slot 4. [ 119.487429] usb 3-10.1: hub failed to enable device, error -22 [ 119.575139] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 119.575174] xhci_hcd 0000:00:14.0: Setup ERROR: setup context command for slot 4. [ 119.575176] usb 3-10.1: hub failed to enable device, error -22 [ 119.663036] usb 3-10.1: reset high-speed USB device number 4 using xhci_hcd [ 119.679831] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807e81e8300 [ 119.679833] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807e81e8348 [ 119.679965] usb 3-10.1: ep 0x81 - rounding interval to 128 microframes, ep desc says 255 microframes [ 119.679968] usb 3-10.1: ep 0x2 - rounding interval to 128 microframes, ep desc says 255 microframes