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[Bug 1286192] Re: [Lenovo IdeaPad Flex 14 NoteBook] Full System freeze

 

this bug is still present in ubuntu 14.10 and ubuntu 15.04 beta, if you
open two o three apps it will stop working, it happened to me with
telegram, and firefox opening new tabs...

** Tags added: vivid

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https://bugs.launchpad.net/bugs/1286192

Title:
  [Lenovo IdeaPad Flex 14 NoteBook] Full System freeze

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  System completely freezes randomly, mostly when running firefox.

  without intervention It happens in 2 stages:

  1. first it locks everything up, except for my mouse and keyboard.
  2. shortly after that the mouse and keyboard lock up and my system freezes.

  If i can still use my keyboard in stage 1 and press ctr + alt + F2 I
  get these messages in the console:

  Feb 28 14:07:21 Shinobu kernel: [ 1625.147864] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
  Feb 28 14:07:21 Shinobu kernel: [ 1625.147868] [drm] capturing error event; look for more information in /sys/kernel/debug/dri/0/i915_error_state
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152227] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152242] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152256] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152281] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152294] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152307] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152320] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152334] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152347] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152360] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152385] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152399] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152423] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152437] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152462] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152475] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152488] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152513] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152526] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152540] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152553] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152578] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152603] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152628] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152642] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152655] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152668] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt
  Feb 28 14:07:21 Shinobu kernel: [ 1625.152682] [drm:ivybridge_irq_handler] *ERROR* Unclaimed register before interrupt

  After switching back to the gui with ctr+alt+F7 the system will again
  continue to run normally (I no expert but i looks like it).

  Added the full kernlog file

  If you need more info let me know.

  I have run memtest86+

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-17-generic 3.11.0-17.31
  ProcVersionSignature: Ubuntu 3.11.0-17.31-generic 3.11.10.3
  Uname: Linux 3.11.0-17-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  tim        2110 F.... pulseaudio
   /dev/snd/controlC0:  tim        2110 F.... pulseaudio
  CRDA:
   country EU:
   	(2402 - 2482 @ 40), (N/A, 20)
   	(5170 - 5250 @ 40), (N/A, 20)
   	(5250 - 5330 @ 40), (N/A, 20), DFS
   	(5490 - 5710 @ 40), (N/A, 27), DFS
  Date: Fri Feb 28 16:14:30 2014
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=16b344f2-3571-48f1-b3b8-05ae5d1fdd41
  InstallationDate: Installed on 2014-01-30 (28 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: LENOVO 20308
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-17-generic root=UUID=b9e3017d-62f9-4be2-8815-30a30f6b9e88 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-17-generic N/A
   linux-backports-modules-3.11.0-17-generic  N/A
   linux-firmware                             1.116.2
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/31/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8ACN07WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Strawberry 4A
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900003Std
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo Ideapad Flex 14
  dmi.modalias: dmi:bvnLENOVO:bvr8ACN07WW:bd07/31/2013:svnLENOVO:pn20308:pvrLenovoIdeapadFlex14:rvnLENOVO:rnStrawberry4A:rvr31900003Std:cvnLENOVO:ct10:cvrLenovoIdeapadFlex14:
  dmi.product.name: 20308
  dmi.product.version: Lenovo Ideapad Flex 14
  dmi.sys.vendor: LENOVO

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