[ 5.486887] iwl4965: Intel(R) Wireless WiFi 4965 driver for Linux, in-tree:
[ 5.486890] iwl4965: Copyright(c) 2003-2011 Intel Corporation
[ 5.486946] iwl4965 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[ 5.487047] iwl4965 0000:03:00.0: Detected Intel(R) Wireless WiFi Link 4965AGN, REV=0x4
[ 5.526695] iwl4965 0000:03:00.0: device EEPROM VER=0x36, CALIB=0x5
[ 5.549134] iwl4965 0000:03:00.0: Tunable channels: 13 802.11bg, 19 802.11a channels
[ 5.549177] iwl4965 0000:03:00.0: irq 48 for MSI/MSI-X
[ 5.556780] iwl4965 0000:03:00.0: loaded firmware version 228.61.2.24
[ 5.560832] Non-volatile memory driver v1.3
[ 5.567176] thinkpad_acpi: ThinkPad ACPI Extras v0.25
[ 5.567179] thinkpad_acpi: http://ibm-acpi.sf.net/
[ 5.567180] thinkpad_acpi: ThinkPad BIOS 7LETC9WW (2.29 ), EC 7KHT24WW-1.08
[ 5.567182] thinkpad_acpi: Lenovo ThinkPad T61, model 7661AU5
[ 5.572832] thinkpad_acpi: detected a 16-level brightness capable ThinkPad
[ 5.573307] thinkpad_acpi: ACPI backlight control delay disabled
[ 5.573461] thinkpad_acpi: radio switch found; radios are enabled
[ 5.573471] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
[ 5.573472] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
[ 5.575697] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[ 5.579459] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one
[ 5.579576] thinkpad_acpi: Console audio control enabled, mode: monitor (read only)
[ 5.581640] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input8
[ 5.589295] ieee80211 phy0: Selected rate control algorithm 'iwl-4965-rs'
[ 5.618179] hda_intel: probe_mask set to 0x1 for device 17aa:20ac
[ 5.618240] snd_hda_intel 0000:00:1b.0: irq 49 for MSI/MSI-X
[ 5.735375] device-mapper: multipath: version 1.6.0 loaded
[ 6.014934] autoconfig: line_outs=1 (0x12/0x0/0x0/0x0/0x0) type:speaker
[ 6.014939] speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 6.014941] hp_outs=1 (0x11/0x0/0x0/0x0/0x0)
[ 6.014942] mono: mono_out=0x0
[ 6.014943] dig-out=0x1b/0x0
[ 6.014944] inputs:
[ 6.014946] Internal Mic=0x15
[ 6.014947] Dock Mic=0x1c
[ 6.014949] Mic=0x14
[ 6.035042] input: HDA Intel Front Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[ 6.038739] input: HDA Intel Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[ 6.038849] input: HDA Intel Dock Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
[ 6.093466] init: failsafe main process (660) killed by TERM signal
[ 6.098035] init: samba-ad-dc main process (728) terminated with status 1
[ 6.163988] psmouse serio2: alps: Unknown ALPS touchpad: E7=10 00 64, EC=10 00 64
[ 6.266684] cfg80211: World regulatory domain updated:
[ 6.266688] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 6.266691] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 6.266693] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 6.266694] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 6.266696] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 6.266698] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 6.290043] pcmcia_socket pcmcia_socket0: cs: memory probe 0x0c0000-0x0fffff:
[ 6.290051] excluding 0xc0000-0xcffff 0xe0000-0xfffff
[ 6.290079] pcmcia_socket pcmcia_socket0: cs: memory probe 0xa0000000-0xa0ffffff:
[ 6.290088] excluding 0xa0000000-0xa0ffffff
[ 6.290104] pcmcia_socket pcmcia_socket0: cs: memory probe 0x60000000-0x60ffffff:
[ 6.290113] excluding 0x60000000-0x60ffffff
[ 6.622180] usbcore: registered new interface driver btusb
[ 6.771147] e1000e 0000:00:19.0: irq 45 for MSI/MSI-X
[ 6.874026] e1000e 0000:00:19.0: irq 45 for MSI/MSI-X
[ 6.874160] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 6.874491] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 7.118992] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 7.119267] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 7.320050] init: plymouth-upstart-bridge main process ended, respawning
[ 7.326796] init: plymouth-upstart-bridge main process (1448) terminated with status 1
[ 7.326811] init: plymouth-upstart-bridge main process ended, respawning
[ 7.351257] thinkpad_ec: module verification failed: signature and/or required key missing - tainting kernel
[ 7.351732] thinkpad_ec: thinkpad_ec 0.41 loaded.
[ 7.352552] tp_smapi 0.41 loading...
[ 7.352679] tp_smapi successfully loaded (smapi_port=0xb2).
[ 7.516753] init: plymouth-stop pre-start process (1555) terminated with status 1
[ 7.689395] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3
[ 7.924028] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/serio2/input/input6
[ 11.209326] wlan0: authenticate with 08:96:d7:5e:d8:af
[ 11.226795] wlan0: send auth to 08:96:d7:5e:d8:af (try 1/3)
[ 11.228944] wlan0: send auth to 08:96:d7:5e:d8:af (try 2/3)
[ 11.276342] wlan0: authenticated
[ 11.280061] wlan0: associate with 08:96:d7:5e:d8:af (try 1/3)
[ 11.289324] wlan0: RX AssocResp from 08:96:d7:5e:d8:af (capab=0x431 status=0 aid=3)
[ 11.317179] wlan0: associated
[ 11.317220] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 11.317279] cfg80211: Calling CRDA for country: DE
[ 11.323463] cfg80211: Regulatory domain changed to country: DE
[ 11.323466] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 11.323468] cfg80211: (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 11.323470] cfg80211: (5150000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 11.323472] cfg80211: (5250000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 11.323474] cfg80211: (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm)
[ 11.323476] cfg80211: (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
[ 12.340168] wlan0: deauthenticating from 08:96:d7:5e:d8:af by local choice (reason=2)
[ 12.383569] wlan0: authenticate with 08:96:d7:5e:d8:af
[ 12.402468] wlan0: send auth to 08:96:d7:5e:d8:af (try 1/3)
[ 12.403051] cfg80211: Calling CRDA to update world regulatory domain
[ 12.405951] cfg80211: World regulatory domain updated:
[ 12.405954] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 12.405957] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 12.405959] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 12.405960] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 12.405962] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 12.405964] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 12.406108] wlan0: authenticated
[ 12.408136] wlan0: associate with 08:96:d7:5e:d8:af (try 1/3)
[ 12.419351] wlan0: RX AssocResp from 08:96:d7:5e:d8:af (capab=0x431 status=0 aid=3)
[ 12.444293] wlan0: associated
[ 12.444365] cfg80211: Calling CRDA for country: DE
[ 12.447253] cfg80211: Regulatory domain changed to country: DE
[ 12.447257] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 12.447259] cfg80211: (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 12.447260] cfg80211: (5150000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 12.447262] cfg80211: (5250000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 12.447264] cfg80211: (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm)
[ 12.447266] cfg80211: (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
[ 15.563776] ISO 9660 Extensions: Microsoft Joliet Level 1
[ 15.571246] ISOFS: changing to secondary root
[ 29.820054] [drm] stuck on render ring
[ 29.820059] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 29.820061] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
[ 29.820062] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
[ 29.820063] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
[ 29.820064] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
[ 29.820979] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x13bf000 ctx 0) at 0x13bff04
[ 29.896093] [drm] GMBUS [i915 gmbus vga] timed out, falling back to bit banging on pin 2
[ 30.332090] [drm:i915_reset] *ERROR* Failed to reset chip.
[ 31.692087] ------------[ cut here ]------------
[ 31.692136] WARNING: CPU: 0 PID: 1455 at /build/buildd/linux-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x68/0x70 [i915]()
[ 31.692137] PLL state assertion failure (expected on, current off)
[ 31.692183] Modules linked in: nls_utf8 isofs ctr ccm tp_smapi(OX) thinkpad_ec(OX) btusb snd_hda_codec_analog dm_multipath scsi_dh coretemp kvm_intel kvm joydev snd_hda_intel snd_hda_codec serio_raw snd_hwdep snd_pcm arc4 thinkpad_acpi nvram snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq iwl4965 pcmcia snd_seq_device snd_timer iwlegacy mac80211 snd bnep rfcomm bluetooth yenta_socket lpc_ich pcmcia_rsrc pcmcia_core cfg80211 soundcore binfmt_misc mac_hid parport_pc ppdev lp parport dm_mirror dm_region_hash dm_log firewire_ohci i915 psmouse firewire_core crc_itu_t ahci libahci i2c_algo_bit drm_kms_helper e1000e drm ptp pps_core wmi video
[ 31.692187] CPU: 0 PID: 1455 Comm: Xorg Tainted: G OX 3.13.0-37-generic #64-Ubuntu
[ 31.692189] Hardware name: LENOVO 7661AU5/7661AU5, BIOS 7LETC9WW (2.29 ) 03/18/2011
[ 31.692194] 0000000000000009 ffff8800b8045928 ffffffff8171ed09 ffff8800b8045970
[ 31.692197] ffff8800b8045960 ffffffff8106773d 0000000000000001 ffff880035e86800
[ 31.692200] ffff880135771000 0000000000000000 0000000000000000 ffff8800b80459c0
[ 31.692201] Call Trace:
[ 31.692209] [<ffffffff8171ed09>] dump_stack+0x45/0x56
[ 31.692213] [<ffffffff8106773d>] warn_slowpath_common+0x7d/0xa0
[ 31.692216] [<ffffffff810677ac>] warn_slowpath_fmt+0x4c/0x50
[ 31.692253] [<ffffffffa019ed7c>] ? gen4_read32+0x3c/0xb0 [i915]
[ 31.692268] [<ffffffffa015ff98>] assert_pll+0x68/0x70 [i915]
[ 31.692282] [<ffffffffa0165db0>] intel_crtc_load_lut+0x1b0/0x1d0 [i915]
[ 31.692285] [<ffffffff81725542>] ? mutex_lock+0x12/0x2f
[ 31.692291] [<ffffffffa0073ad3>] drm_fb_helper_setcmap+0x3d3/0x490 [drm_kms_helper]
[ 31.692306] [<ffffffffa016be18>] ? intel_crtc_set_config+0x668/0x9a0 [i915]
[ 31.692310] [<ffffffff813cebfa>] fb_set_cmap+0x6a/0x140
[ 31.692312] [<ffffffff813d659c>] fbcon_set_palette+0x13c/0x170
[ 31.692314] [<ffffffff813da091>] fbcon_switch+0x3b1/0x550
[ 31.692317] [<ffffffff8145fa99>] redraw_screen+0x189/0x240
[ 31.692318] [<ffffffff813d759a>] fbcon_blank+0x20a/0x2d0
[ 31.692321] [<ffffffff8109827d>] ? ttwu_do_activate.constprop.74+0x5d/0x70
[ 31.692323] [<ffffffff814605b8>] do_unblank_screen+0xb8/0x1f0
[ 31.692326] [<ffffffff8145631a>] complete_change_console+0x5a/0xe0
[ 31.692327] [<ffffffff8145734a>] vt_ioctl+0xfaa/0x11c0
[ 31.692330] [<ffffffff8123a6b9>] ? ext4_file_write+0x99/0x400
[ 31.692333] [<ffffffff8144ad3d>] tty_ioctl+0x26d/0xbb0
[ 31.692336] [<ffffffff811fecf1>] ? fsnotify+0x241/0x320
[ 31.692339] [<ffffffff811d03a0>] do_vfs_ioctl+0x2e0/0x4c0
[ 31.692341] [<ffffffff811bf761>] ? __sb_end_write+0x31/0x60
[ 31.692343] [<ffffffff811bd2d2>] ? vfs_write+0x192/0x1f0
[ 31.692345] [<ffffffff811d0601>] SyS_ioctl+0x81/0xa0
[ 31.692346] [<ffffffff811bdc29>] ? SyS_write+0x49/0xa0
[ 31.692348] [<ffffffff8172f82d>] system_call_fastpath+0x1a/0x1f
[ 31.692349] ---[ end trace 840be70c95c7af37 ]---
[ 31.692375] ------------[ cut here ]------------
[ 31.692389] WARNING: CPU: 0 PID: 1455 at /build/buildd/linux-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x68/0x70 [i915]()
[ 31.692389] PLL state assertion failure (expected on, current off)
[ 31.692409] Modules linked in: nls_utf8 isofs ctr ccm tp_smapi(OX) thinkpad_ec(OX) btusb snd_hda_codec_analog dm_multipath scsi_dh coretemp kvm_intel kvm joydev snd_hda_intel snd_hda_codec serio_raw snd_hwdep snd_pcm arc4 thinkpad_acpi nvram snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq iwl4965 pcmcia snd_seq_device snd_timer iwlegacy mac80211 snd bnep rfcomm bluetooth yenta_socket lpc_ich pcmcia_rsrc pcmcia_core cfg80211 soundcore binfmt_misc mac_hid parport_pc ppdev lp parport dm_mirror dm_region_hash dm_log firewire_ohci i915 psmouse firewire_core crc_itu_t ahci libahci i2c_algo_bit drm_kms_helper e1000e drm ptp pps_core wmi video
[ 31.692410] CPU: 0 PID: 1455 Comm: Xorg Tainted: G W OX 3.13.0-37-generic #64-Ubuntu
[ 31.692411] Hardware name: LENOVO 7661AU5/7661AU5, BIOS 7LETC9WW (2.29 ) 03/18/2011
[ 31.692412] 0000000000000009 ffff8800b80459f8 ffffffff8171ed09 ffff8800b8045a40
[ 31.692414] ffff8800b8045a30 ffffffff8106773d 0000000000000001 ffff880035e86800
[ 31.692415] ffff880135771000 0000000000000000 0000000000000000 ffff8800b8045a90
[ 31.692416] Call Trace:
[ 31.692417] [<ffffffff8171ed09>] dump_stack+0x45/0x56
[ 31.692419] [<ffffffff8106773d>] warn_slowpath_common+0x7d/0xa0
[ 31.692420] [<ffffffff810677ac>] warn_slowpath_fmt+0x4c/0x50
[ 31.692436] [<ffffffffa019ed7c>] ? gen4_read32+0x3c/0xb0 [i915]
[ 31.692451] [<ffffffffa015ff98>] assert_pll+0x68/0x70 [i915]
[ 31.692465] [<ffffffffa0165db0>] intel_crtc_load_lut+0x1b0/0x1d0 [i915]
[ 31.692467] [<ffffffff81725542>] ? mutex_lock+0x12/0x2f
[ 31.692471] [<ffffffffa0073ad3>] drm_fb_helper_setcmap+0x3d3/0x490 [drm_kms_helper]
[ 31.692474] [<ffffffff813cebfa>] fb_set_cmap+0x6a/0x140
[ 31.692476] [<ffffffff813d659c>] fbcon_set_palette+0x13c/0x170
[ 31.692477] [<ffffffff8145e8a0>] set_palette+0x40/0x60
[ 31.692479] [<ffffffff8145faa4>] redraw_screen+0x194/0x240
[ 31.692480] [<ffffffff813d759a>] fbcon_blank+0x20a/0x2d0
[ 31.692482] [<ffffffff8109827d>] ? ttwu_do_activate.constprop.74+0x5d/0x70
[ 31.692484] [<ffffffff814605b8>] do_unblank_screen+0xb8/0x1f0
[ 31.692486] [<ffffffff8145631a>] complete_change_console+0x5a/0xe0
[ 31.692487] [<ffffffff8145734a>] vt_ioctl+0xfaa/0x11c0
[ 31.692489] [<ffffffff8123a6b9>] ? ext4_file_write+0x99/0x400
[ 31.692491] [<ffffffff8144ad3d>] tty_ioctl+0x26d/0xbb0
[ 31.692493] [<ffffffff811fecf1>] ? fsnotify+0x241/0x320
[ 31.692495] [<ffffffff811d03a0>] do_vfs_ioctl+0x2e0/0x4c0
[ 31.692496] [<ffffffff811bf761>] ? __sb_end_write+0x31/0x60
[ 31.692498] [<ffffffff811bd2d2>] ? vfs_write+0x192/0x1f0
[ 31.692500] [<ffffffff811d0601>] SyS_ioctl+0x81/0xa0
[ 31.692501] [<ffffffff811bdc29>] ? SyS_write+0x49/0xa0
[ 31.692502] [<ffffffff8172f82d>] system_call_fastpath+0x1a/0x1f
[ 31.692503] ---[ end trace 840be70c95c7af38 ]---
[ 31.695040] ------------[ cut here ]------------
[ 31.695054] WARNING: CPU: 0 PID: 1455 at /build/buildd/linux-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x68/0x70 [i915]()
[ 31.695055] PLL state assertion failure (expected on, current off)
[ 31.695074] Modules linked in: nls_utf8 isofs ctr ccm tp_smapi(OX) thinkpad_ec(OX) btusb snd_hda_codec_analog dm_multipath scsi_dh coretemp kvm_intel kvm joydev snd_hda_intel snd_hda_codec serio_raw snd_hwdep snd_pcm arc4 thinkpad_acpi nvram snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq iwl4965 pcmcia snd_seq_device snd_timer iwlegacy mac80211 snd bnep rfcomm bluetooth yenta_socket lpc_ich pcmcia_rsrc pcmcia_core cfg80211 soundcore binfmt_misc mac_hid parport_pc ppdev lp parport dm_mirror dm_region_hash dm_log firewire_ohci i915 psmouse firewire_core crc_itu_t ahci libahci i2c_algo_bit drm_kms_helper e1000e drm ptp pps_core wmi video
[ 31.695075] CPU: 0 PID: 1455 Comm: Xorg Tainted: G W OX 3.13.0-37-generic #64-Ubuntu
[ 31.695076] Hardware name: LENOVO 7661AU5/7661AU5, BIOS 7LETC9WW (2.29 ) 03/18/2011
[ 31.695078] 0000000000000009 ffff8800b8045b20 ffffffff8171ed09 ffff8800b8045b68
[ 31.695079] ffff8800b8045b58 ffffffff8106773d 0000000000000001 ffff880035e86800
[ 31.695081] ffff880135771000 0000000000000000 0000000000000000 ffff8800b8045bb8
[ 31.695081] Call Trace:
[ 31.695082] [<ffffffff8171ed09>] dump_stack+0x45/0x56
[ 31.695084] [<ffffffff8106773d>] warn_slowpath_common+0x7d/0xa0
[ 31.695085] [<ffffffff810677ac>] warn_slowpath_fmt+0x4c/0x50
[ 31.695101] [<ffffffffa019ed7c>] ? gen4_read32+0x3c/0xb0 [i915]
[ 31.695116] [<ffffffffa015ff98>] assert_pll+0x68/0x70 [i915]
[ 31.695130] [<ffffffffa0165db0>] intel_crtc_load_lut+0x1b0/0x1d0 [i915]
[ 31.695132] [<ffffffff81725542>] ? mutex_lock+0x12/0x2f
[ 31.695137] [<ffffffffa0073ad3>] drm_fb_helper_setcmap+0x3d3/0x490 [drm_kms_helper]
[ 31.695139] [<ffffffff810754ff>] ? try_to_del_timer_sync+0x4f/0x70
[ 31.695141] [<ffffffff8107556a>] ? del_timer_sync+0x4a/0x60
[ 31.695143] [<ffffffff8109827d>] ? ttwu_do_activate.constprop.74+0x5d/0x70
[ 31.695145] [<ffffffff813cebfa>] fb_set_cmap+0x6a/0x140
[ 31.695147] [<ffffffff813d659c>] fbcon_set_palette+0x13c/0x170
[ 31.695148] [<ffffffff8145e8a0>] set_palette+0x40/0x60
[ 31.695150] [<ffffffff814605e6>] do_unblank_screen+0xe6/0x1f0
[ 31.695151] [<ffffffff8145631a>] complete_change_console+0x5a/0xe0
[ 31.695153] [<ffffffff8145734a>] vt_ioctl+0xfaa/0x11c0
[ 31.695154] [<ffffffff8123a6b9>] ? ext4_file_write+0x99/0x400
[ 31.695157] [<ffffffff8144ad3d>] tty_ioctl+0x26d/0xbb0
[ 31.695158] [<ffffffff811fecf1>] ? fsnotify+0x241/0x320
[ 31.695160] [<ffffffff811d03a0>] do_vfs_ioctl+0x2e0/0x4c0
[ 31.695162] [<ffffffff811bf761>] ? __sb_end_write+0x31/0x60
[ 31.695164] [<ffffffff811bd2d2>] ? vfs_write+0x192/0x1f0
[ 31.695165] [<ffffffff811d0601>] SyS_ioctl+0x81/0xa0
[ 31.695167] [<ffffffff811bdc29>] ? SyS_write+0x49/0xa0
[ 31.695168] [<ffffffff8172f82d>] system_call_fastpath+0x1a/0x1f
[ 31.695169] ---[ end trace 840be70c95c7af39 ]---