kernel-packages team mailing list archive

[Mike Pastor <zolruntulope@xxxxxxxxx>]

I was instructed to test the latest development release (14.04) to
determine whether a bug (soft lockup bug), which still exists in 12.04
LTS, is in the development release and/or the mainline kernel for the
development release.

My tests suggest that the bug is fixed in 14.04 (the development
release) and in the mainline kernel for the development release.

The fix is to be applied (backported; if I understand the meaning of
"backport") to the LTS version - 12.04 LTS.

The bug, as reported, is valid, and has existed on this system for more
than a year.

The test is not conclusive, but, after 540 suspend/resumes it can be
tentatively assumed that the bug no longer exists in the development
release (14.04) or the mainline kernel for the development release. The
bug would certainly show up in 12.04 after 540 suspend/resumes.

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https://bugs.launchpad.net/bugs/1036456

Title:
  [Fujitsu LIFEBOOK AH530] BUG: soft lockup - CPU#0 stuck for 22s!

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  60% of the time computer will not resume from suspend when lid is opened.
  Display begins with ACPI errors and Device PNP0C0D:00 errors and
  then a cycle of text after the "BUG: soft lockup - CPU#0 stuck for 22s!"  error.

  Additionally,
  yelp process consumed 100% of each of the 4 processors in sequence for a long time after this event last occured.
  Terminal will not take administrator's password at all - the cursur won't move. Therefore, "sudo lspci -vnvn > lspci-vnvn.log" could not be done at all.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-29-generic-pae 3.2.0-29.46
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic-pae 3.2.24
  Uname: Linux 3.2.0-29-generic-pae i686
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: i386
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  lfeq       1628 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf0700000 irq 44'
     Mixer name	: 'Intel IbexPeak HDMI'
     Components	: 'HDA:10ec0269,10cf0200,00100004 HDA:80862804,80860101,00100000'
     Controls      : 23
     Simple ctrls  : 10
  Date: Mon Aug 13 20:28:09 2012
  HibernationDevice: RESUME=UUID=306aab40-d7f0-4c2f-95bb-bab8bcb6da07
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
  MachineType: FUJITSU LIFEBOOK AH530
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic-pae root=UUID=5e649b17-1a99-456b-bd08-ef7aec3da8c1 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-29-generic-pae N/A
   linux-backports-modules-3.2.0-29-generic-pae  N/A
   linux-firmware                                1.79
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/19/2010
  dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd.
  dmi.bios.version: Version 1.16
  dmi.board.name: FJNBB06
  dmi.board.vendor: FUJITSU
  dmi.chassis.type: 10
  dmi.chassis.vendor: FUJITSU
  dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvrVersion1.16:bd08/19/2010:svnFUJITSU:pnLIFEBOOKAH530:pvr:rvnFUJITSU:rnFJNBB06:rvr:cvnFUJITSU:ct10:cvr:
  dmi.product.name: LIFEBOOK AH530
  dmi.sys.vendor: FUJITSU

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