kernel-packages team mailing list archive

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

Pieter, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.11-rc5

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

** This bug is no longer a duplicate of bug 887793
   Kworker constantly taking about 100% CPU

** Tags added: needs-kernel-logs

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/717919

Title:
  ACPI + kworker high interrupts.

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Installed new kernel on ubuntu 10.10
  $ uname -a
  Linux pieters-laptop 2.6.37-020637-generic #201101050908 SMP Wed Jan 5 09:09:44 UTC 2011 x86_64 GNU/Linux

  Now in top, kworker using 1cpu all the time
    PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
      4 root      20   0     0    0    0 R   91  0.0   4:37.71 kworker/0:0 

  Powertop
  Top causes for wakeups:
    80.7% (2486.2)   [acpi] <interrupt>

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