kernel-packages team mailing list archive

[Hans Deragon <hans@xxxxxxxxxxx>]

On my Lenovo ThinkPad T61, I tried kernel 3.14.1-031401-generic, but at
boot it fails.  It shows me a panel stating I have problem with the
display and input devices.  I then press "enter" and another panel with
4 options shows up, including going into low graphic mode.   At this
point, the mousepad does not work and the panel does not accept my
keyboard input anymore.  I can switch to one of the consoles with CTRL-
ALT-F3 and there, my keyboard does work.

I am running the Nvidia proprietary driver but I really need it.  Since
this bug comes occasionally, say once every 2 months, there is no point
for me using the open source drivers as they would render my laptop
useless for my work.  If that is the problem causing 3.14.1 to fail.
then running a mainline kernel is not an option for me.

-- 
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1301003

Title:
  kworker runs with 40-60% CPU because of modules e1000 and/or e1000e

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Once in a blue moon, lets say once every two months, kworker runs with
  40-60% CPU because of kernel modules e1000 and/or e1000e.  Reboot the
  machine does not help.  I rebooted twice to no avail

  I then ran:

    sudo modprobe -r e1000
    sudo modprobe -r e1000e

  and the problem was gone.

  When I run the following afterwards:

    sudo modprobe e1000
    sudo modprobe e1000e

  ... the kworker ran for less than 1s and exited.

  This particular problem was already reported in bug #887739.

    https://bugs.launchpad.net/ubuntu/+source/linux/+bug/887793

  but was not the problem of the person that reported it, thus this new
  bug report.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-60-generic 3.2.0-60.91
  ProcVersionSignature: Ubuntu 3.2.0-60.91-generic 3.2.55
  Uname: Linux 3.2.0-60-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
     Subdevices: 2/2
     Subdevice #0: subdevice #0
     Subdevice #1: subdevice #1
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfe220000 irq 49'
     Mixer name	: 'Analog Devices AD1984'
     Components	: 'HDA:11d41984,17aa20bb,00100400'
     Controls      : 32
     Simple ctrls  : 20
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7KHT22WW-1.06'
     Mixer name	: 'ThinkPad EC 7KHT22WW-1.06'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Tue Apr  1 16:31:37 2014
  HibernationDevice: RESUME=UUID=3b244221-fe9e-429c-8bd3-c541dbf92fcc
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: LENOVO 646066U
  MarkForUpload: True
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcEnviron:
   LANGUAGE=en_CA:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-60-generic root=/dev/mapper/hostname-root ro quiet splash nmi_watchdog=0
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-60-generic N/A
   linux-backports-modules-3.2.0-60-generic  N/A
   linux-firmware                            1.79.11
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/27/2007
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7LET44WW (1.14 )
  dmi.board.name: 646066U
  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:bvr7LET44WW(1.14):bd06/27/2007:svnLENOVO:pn646066U:pvrThinkPadT61:rvnLENOVO:rn646066U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 646066U
  dmi.product.version: ThinkPad T61
  dmi.sys.vendor: LENOVO

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