linux-traipu team mailing list archive

[Marco M Scannadinari <1043755@xxxxxxxxxxxxxxxxxx>]

** Also affects: chromium-v8
   Importance: Undecided
       Status: New

** Also affects: chromium-browser
   Importance: Undecided
       Status: New

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AL - BR, which is subscribed to Chromium Browser.
https://bugs.launchpad.net/bugs/1043755

Title:
  "Watchdog detected hard lockup on cpu 0" on shutdown

Status in Chromium Browser:
  New
Status in V8 JavaScript Engine:
  New
Status in AMD fglrx video driver:
  New
Status in Light Display Manager:
  New
Status in The Linux Kernel:
  New
Status in X.Org X server:
  New
Status in “lightdm” package in Ubuntu:
  New

Bug description:
  Ocasionally, when I shut down, I am sent to the plymouth splash screen as usual, however the ubuntu logo and the progress dots are static - they are not moving. This has been happening more recently over the past week.
  The hard drive LED on my case is not lit up at all when this happens.

  EDIT:
  More info has been uncovered, after quietsplash was turned off at shutdown and boot, these logs were in my view:

  "At /build/buildd/linux-3.2.0/kernel/watchdog.c:241 watchdog_overflow_callback+0x9a/0xc0 ()
  Watchdog detected hard lockup on cpu 0"

  ...And something about "BUG: Kernel Overflow" or something like that.

  
  These bugs appear to by synonymous with my problem http://lkml.indiana.edu/hypermail/linux/kernel/1107.1/02053.html
  and https://bugzilla.redhat.com/show_bug.cgi?id=822287.

  
  This is the code that is supposed to trigger it http://lxr.free-electrons.com/source/kernel/watchdog.c#L214.

  Attatched:
  Xorg.log
  Syslog.log

  Motherboard ASUS M5A78L -M LX V2
  GPU Sapphire Radeon HD 6570 WITH UBUNTU-PACKAGED FGLRX INSTALLED DRIVER
  CPU AMD Athlon II X2 255 3.2GHz
  HD WD Caviar 500GB
  Monitor Benq G2255

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: plymouth 0.8.2-2ubuntu30
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
  Uname: Linux 3.2.0-29-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: amd64
  Date: Thu Aug 30 11:42:47 2012
  DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: System manufacturer System Product Name
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic root=UUID=e97b3482-c14c-4320-b621-19dbc962822b ro
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic root=UUID=e97b3482-c14c-4320-b621-19dbc962822b ro
  SourcePackage: plymouth
  TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/26/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0902
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: M5A78L-M LX V2
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0902:bd03/26/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM5A78L-MLXV2:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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