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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Happened again while chromium-browser+html5 video playing:
uname -a
Linux monikerpc 3.16.0-28-generic #37-Ubuntu SMP Tue Dec 9 11:06:13 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Dec 17 03:19:04 monikerpc kernel: [37302.783271] Watchdog[11948]: segfault at 0 ip 00007f96e0495428 sp 00007f96d0705520 error 6 in libcontent.so[7f96dfbde000+1244000]
Dec 17 03:19:05 monikerpc kernel: [37304.037743] radeon 0000:00:01.0: ring 3 stalled for more than 10756msec
Dec 17 03:19:05 monikerpc kernel: [37304.037815] radeon 0000:00:01.0: GPU lockup (waiting for 0x0000000000cce1e1 last fence id 0x0000000000cce1e0 on ring 3)
Dec 17 03:19:05 monikerpc kernel: [37304.037825] radeon 0000:00:01.0: failed to get a new IB (-35)
Dec 17 03:19:07 monikerpc kernel: [37305.371204] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset the VCPU!!!
Dec 17 03:19:08 monikerpc kernel: [37306.383394] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset the VCPU!!!
Dec 17 03:19:09 monikerpc kernel: [37307.395586] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset the VCPU!!!

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https://bugs.launchpad.net/bugs/1401226

Title:
  1002:9830 [Lenovo IdeaPad S415 Touch] Hard locks on heavy resource
  usage

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  1) lsb_release -rd
  Description:	Ubuntu 14.04.1 LTS
  Release:	14.04

  2) Linux monikerpc 3.16.0-25-generic #33-Ubuntu SMP Fri Nov 7 01:53:40
  UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

  3) What is expected to happen is when one watches pepper flash content
  via chromium, it does not hard lock the computer.

  4) What happens is it does as per attached kern.log. This typically
  happens every 2-3 days.

  I just updated the BIOS. If it continues, I'll do a mainline test next:
  sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
  8CCN34WW(V3.04)
  10/14/2014

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-25-generic 3.16.0-25.33~14.04.2
  ProcVersionSignature: Ubuntu 3.16.0-25.33~14.04.2-generic 3.16.7
  Uname: Linux 3.16.0-25-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Dec 10 12:54:15 2014
  InstallationDate: Installed on 2014-06-21 (171 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)
  ---
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  moniker    2402 F.... pulseaudio
   /dev/snd/controlC0:  moniker    2402 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=df17fdb9-57a4-4302-856e-3cd656848355
  InstallationDate: Installed on 2014-06-21 (171 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: LENOVO 20319
  Package: linux (not installed)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-25-generic root=UUID=a2db89ed-d599-4138-8838-0b950b6c3fbb ro quiet splash crashkernel=384M-:128M vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-25.33~14.04.2-generic 3.16.7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-25-generic N/A
   linux-backports-modules-3.16.0-25-generic  N/A
   linux-firmware                             1.127.10
  Tags:  trusty
  Uname: Linux 3.16.0-25-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 11/14/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8CCN29WW(V2.03)
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Lenovo IdeaPad S415 Touch
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900058Std
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo IdeaPad S415 Touch
  dmi.modalias: dmi:bvnLENOVO:bvr8CCN29WW(V2.03):bd11/14/2013:svnLENOVO:pn20319:pvrLenovoIdeaPadS415Touch:rvnLENOVO:rnLenovoIdeaPadS415Touch:rvr31900058Std:cvnLENOVO:ct10:cvrLenovoIdeaPadS415Touch:
  dmi.product.name: 20319
  dmi.product.version: Lenovo IdeaPad S415 Touch
  dmi.sys.vendor: LENOVO

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