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["Tm_T \(Jussi Kekkonen\)" <jussi.kekkonen@xxxxxxxxx>]

Also maybe worth noting that I'm using Kubuntu.

my syslog get following entries when the lockup happens:

Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405831] ------------[ cut here ]------------
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405879] WARNING: CPU: 0 PID: 1602 at /build/buildd/linux-3.16.0/drivers/gpu/drm/i915/intel_display.c:3324
 intel_crtc_wait_for_pending_flips+0x16c/0x180 [i915]()
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405881] Modules linked in: asix usbnet mii hid_logitech_dj hid_generic xt_CHECKSUM iptable_mangle ipt_MAS
QUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tabl
es bridge stp llc ctr ccm pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) joydev intel_rapl arc4 x86_pkg_temp_thermal hid_rmi intel_pow
erclamp coretemp dell_wmi sparse_keymap kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel dell_laptop uvcvideo dcdbas videobuf2_vmalloc 
videobuf2_memops videobuf2_core v4l2_common aesni_intel videodev aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd hid_multitouch media iwlmvm sn
d_soc_rt5640 snd_soc_rl6231 snd_soc_core mac80211 snd_compress snd_pcm_dmaengine btusb snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic 
iwlwifi serio_raw snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep cfg80211 snd_pcm mei_me mei shpchp lpc_ich snd_seq_midi snd_seq_midi_event 
snd_rawmidi snd_seq snd_seq_device snd_timer snd rfcomm soundcore dw_dmac snd_soc_sst_acpi bnep i2c_hid dw_dmac_core i2c_designware_platform 8250_dw i
2c_designware_core spi_pxa2xx_platform intel_smartconnect bluetooth 6lowpan_iphc mac_hid binfmt_misc parport_pc ppdev i8k lp parport usbhid hid i915 i
2c_algo_bit drm_kms_helper psmouse ahci drm libahci wmi sdhci_acpi sdhci video
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405952] CPU: 0 PID: 1602 Comm: Xorg Tainted: G           OE 3.16.0-23-generic #31-Ubuntu
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405954] Hardware name: Dell Inc. XPS13 9333/0D13CR, BIOS A04 03/19/2014
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405955]  0000000000000009 ffff8800bd587c18 ffffffff8177fcbc 0000000000000000
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405959]  ffff8800bd587c50 ffffffff8106fd8d 0000000000000000 ffff880213e74000
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405961]  ffff880210718210 ffff880210ae5000 ffff880210ae5000 ffff8800bd587c60
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405965] Call Trace:
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405973]  [<ffffffff8177fcbc>] dump_stack+0x45/0x56
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405979]  [<ffffffff8106fd8d>] warn_slowpath_common+0x7d/0xa0
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.405982]  [<ffffffff8106fe6a>] warn_slowpath_null+0x1a/0x20
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406004]  [<ffffffffc01e8ffc>] intel_crtc_wait_for_pending_flips+0x16c/0x180 [i915]
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406010]  [<ffffffff810b9590>] ? prepare_to_wait_event+0x100/0x100
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406029]  [<ffffffffc01ebac3>] intel_crtc_disable_planes+0x33/0x1c0 [i915]
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406032]  [<ffffffff81784e5b>] ? __ww_mutex_lock+0x1b/0xb0
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406050]  [<ffffffffc01eca17>] haswell_crtc_disable+0x57/0x2e0 [i915]
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406053]  [<ffffffff81785ab2>] ? mutex_lock+0x12/0x30
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406072]  [<ffffffffc01ed457>] intel_crtc_update_dpms+0x67/0xa0 [i915]
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406091]  [<ffffffffc01f1ac9>] intel_connector_dpms+0x59/0x70 [i915]
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406110]  [<ffffffffc0119e19>] drm_mode_obj_set_property_ioctl+0x399/0x3a0 [drm]
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406125]  [<ffffffffc0119e50>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406137]  [<ffffffffc0108a4f>] drm_ioctl+0x1df/0x680 [drm]
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406143]  [<ffffffff811f4bc8>] do_vfs_ioctl+0x2c8/0x4a0
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406146]  [<ffffffff811e31a1>] ? __sb_end_write+0x31/0x60
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406149]  [<ffffffff811f4e21>] SyS_ioctl+0x81/0xa0
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406152]  [<ffffffff81787ced>] system_call_fastpath+0x1a/0x1f
Oct 27 10:47:12 jkekkonen-XPS kernel: [20998.406154] ---[ end trace fa8daa4bcece2f9f ]---

-- 
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https://bugs.launchpad.net/bugs/1384342

Title:
  kernel messages intel_crtc_wait_for_pending_flips correlate to compiz
  hang

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I am fairly frequently (maybe once every 2 days) seeing screen
  lockups.  The system is fine, and then screen locks up. mouse is still
  movable and even changes icon based on content under it (ie mouse over
  link changes to pointing hand).  Programs are still running (often
  this occurs during a google hangout, and the hangout, audio and mic
  seem to work fine).

  Today when this happened I had more patience and hit ctrl-alt-f1, and then subsequently saw that dmesg had:
  [82218.556025] ------------[ cut here ]------------
  [82218.556074] WARNING: CPU: 0 PID: 8799 at /build/buildd/linux-3.16.0/drivers/gpu/drm/i915/intel_display.c:3324 intel_crtc_wait_for_pending_flips+0x16c/0x180 [i915]()
  [82218.556095] Modules linked in: xt_conntrack ipt_REJECT overlayfs pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables rfcomm bnep binfmt_misc dm_crypt uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media dm_multipath scsi_dh coretemp kvm_intel kvm arc4 joydev iwldvm mac80211 serio_raw btusb bluetooth pcmcia 6lowpan_iphc thinkpad_acpi snd_seq_midi snd_seq_midi_event nvram snd_hda_codec_conexant snd_hda_codec_generic r852 sm_common lpc_ich nand snd_rawmidi nand_ecc nand_bch snd_hda_intel bch nand_ids snd_hda_controller snd_hda_codec snd_hwdep mtd snd_seq iwlwifi r592 memstick snd_pcm
  [82218.556112]  yenta_socket pcmcia_rsrc pcmcia_core cfg80211 snd_seq_device shpchp snd_timer mei_me mei snd soundcore mac_hid parport_pc ppdev tp_smapi(OE) thinkpad_ec(OE) lp parport btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath linear hid_generic usbhid hid psmouse firewire_ohci ahci libahci firewire_core sdhci_pci sdhci crc_itu_t i915 wmi e1000e i2c_algo_bit drm_kms_helper video drm ptp pps_core pata_acpi [last unloaded: ipmi_msghandler]
  [82218.556114] CPU: 0 PID: 8799 Comm: kworker/0:1 Tainted: G        W  OE 3.16.0-23-generic #30-Ubuntu
  [82218.556115] Hardware name: LENOVO 7417CTO/7417CTO, BIOS 7UET94WW (3.24 ) 10/17/2012
  [82218.556119] Workqueue: events console_callback
  [82218.556122]  0000000000000009 ffff880016a3faf8 ffffffff8177fcbc 0000000000000000
  [82218.556123]  ffff880016a3fb30 ffffffff8106fd8d 0000000000000000 ffff880035a5a000
  [82218.556124]  ffff880035948210 ffff880035826800 ffff880035826800 ffff880016a3fb40
  [82218.556125] Call Trace:
  [82218.556130]  [<ffffffff8177fcbc>] dump_stack+0x45/0x56
  [82218.556133]  [<ffffffff8106fd8d>] warn_slowpath_common+0x7d/0xa0
  [82218.556135]  [<ffffffff8106fe6a>] warn_slowpath_null+0x1a/0x20
  [82218.556153]  [<ffffffffc015dffc>] intel_crtc_wait_for_pending_flips+0x16c/0x180 [i915]
  [82218.556156]  [<ffffffff810b9590>] ? prepare_to_wait_event+0x100/0x100
  [82218.556175]  [<ffffffffc0160ac3>] intel_crtc_disable_planes+0x33/0x1c0 [i915]
  [82218.556177]  [<ffffffff81784e5b>] ? __ww_mutex_lock+0x1b/0xb0
  [82218.556196]  [<ffffffffc0160ca1>] i9xx_crtc_disable+0x51/0x3f0 [i915]
  [82218.556220]  [<ffffffffc0162457>] intel_crtc_update_dpms+0x67/0xa0 [i915]
  [82218.556237]  [<ffffffffc0166ac9>] intel_connector_dpms+0x59/0x70 [i915]
  [82218.556245]  [<ffffffffc00c4901>] drm_fb_helper_dpms.isra.5+0xc1/0x100 [drm_kms_helper]
  [82218.556251]  [<ffffffffc00c4971>] drm_fb_helper_blank+0x31/0x90 [drm_kms_helper]
  [82218.556254]  [<ffffffff81415d47>] fb_blank+0x57/0xc0
  [82218.556256]  [<ffffffff8140c87b>] fbcon_blank+0xfb/0x300
  [82218.556258]  [<ffffffff8108b4a2>] ? __queue_delayed_work+0x182/0x1c0
  [82218.556259]  [<ffffffff8108b7b9>] ? try_to_grab_pending+0xa9/0x160
  [82218.556262]  [<ffffffff8107cbdb>] ? lock_timer_base.isra.34+0x2b/0x50
  [82218.556264]  [<ffffffff8107dd1f>] ? try_to_del_timer_sync+0x4f/0x70
  [82218.556266]  [<ffffffff81497ba3>] do_blank_screen+0x1d3/0x280
  [82218.556267]  [<ffffffff8149a348>] console_callback+0x68/0x160
  [82218.556269]  [<ffffffff8108d8e2>] process_one_work+0x182/0x4e0
  [82218.556270]  [<ffffffff8108dcab>] worker_thread+0x6b/0x6a0
  [82218.556272]  [<ffffffff8178294d>] ? __schedule+0x39d/0x890
  [82218.556273]  [<ffffffff8108dc40>] ? process_one_work+0x4e0/0x4e0
  [82218.556275]  [<ffffffff81094aeb>] kthread+0xdb/0x100
  [82218.556277]  [<ffffffff81094a10>] ? kthread_create_on_node+0x1c0/0x1c0
  [82218.556278]  [<ffffffff81787c3c>] ret_from_fork+0x7c/0xb0
  [82218.556280]  [<ffffffff81094a10>] ? kthread_create_on_node+0x1c0/0x1c0
  [82218.556281] ---[ end trace b9c751133032cf61 ]---

  /var/log/Xorg.0.log had:
  [ 83252.384] (EE) Backtrace:
  [ 83253.063] (EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x7f80649a0666]
  [ 83253.063] (EE) 1: /usr/bin/X (0x7f80647ea000+0x1ba869) [0x7f80649a4869]
  [ 83253.063] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7f806251f000+0x36da0) [0x7f8062555da0]
  [ 83253.063] (EE) 3: /usr/bin/X (0x7f80647ea000+0x1378ec) [0x7f80649218ec]
  [ 83253.063] (EE) 4: /usr/bin/X (0x7f80647ea000+0x137d0c) [0x7f8064921d0c]
  [ 83253.063] (EE) 5: /usr/bin/X (0x7f80647ea000+0x137243) [0x7f8064921243]
  [ 83253.064] (EE) 6: /usr/bin/X (0x7f80647ea000+0xe9fa8) [0x7f80648d3fa8]
  [ 83253.064] (EE) 7: /usr/bin/X (0x7f80647ea000+0x1358fc) [0x7f806491f8fc]
  [ 83253.064] (EE) 8: /usr/bin/X (0x7f80647ea000+0x5b3b7) [0x7f80648453b7]
  [ 83253.064] (EE) 9: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5) [0x7f8062540ec5]
  [ 83253.064] (EE) 10: /usr/bin/X (0x7f80647ea000+0x456ae) [0x7f806482f6ae]
  [ 83253.064] (EE)
  [ 83253.115] (EE) Segmentation fault at address 0x10


  Normally, I'm generally able to switch consoles in and out of X
  without problem. I do not know if the above trace is related to X
  being locked or not.

  I'll also attach the /var/log/Xorg.0.log.old that had some information
  in it also andapparent segfault.  That said, I think all log
  information is tens of seconds after the lock up and might be a result
  of me ctrl-alt-1 <-> ctrl-alt-f7 while system was in a borked state.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-23-generic 3.16.0-23.30
  ProcVersionSignature: Ubuntu 3.16.0-23.30-generic 3.16.4
  Uname: Linux 3.16.0-23-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC0D0c:   smoser     4134 F...m pulseaudio
   /dev/snd/pcmC0D0p:   smoser     4134 F...m pulseaudio
   /dev/snd/controlC0:  smoser     4134 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Oct 22 10:29:16 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2011-10-19 (1099 days ago)
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: LENOVO 7417CTO
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-23-generic root=UUID=f9832678-e9fb-41c5-8edb-5edd5200ed0a ro quiet splash nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-23-generic N/A
   linux-backports-modules-3.16.0-23-generic  N/A
   linux-firmware                             1.136
  SourcePackage: linux
  UpgradeStatus: Upgraded to utopic on 2013-05-20 (520 days ago)
  dmi.bios.date: 10/17/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7UET94WW (3.24 )
  dmi.board.name: 7417CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7UET94WW(3.24):bd10/17/2012:svnLENOVO:pn7417CTO:pvrThinkPadT400:rvnLENOVO:rn7417CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7417CTO
  dmi.product.version: ThinkPad T400
  dmi.sys.vendor: LENOVO

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