kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Did this issue start happening after an update/upgrade?  Was there a
prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.6 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-yakkety


** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1584051

Title:
  BUG: soft lockup - CPU#0 stuck for 22s! [kswapd0:33]

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  This is an upgrade of LXLE (lxle.net) from 12.04 to 14.04.
  The installation has been done by leaving the /home partition intact and installing the 14.04 upon the re-formatted /boot and /root and /swap partitions. The size of all the partitions have been kept the same.

  I get this error soon after I start up the Notebook pretty much 70% of
  the times. And it comes up multiple times while the Notebook is on.
  What follows are random spikes of CPU load with few seconds of
  freezes.

  However, when I use Chromium, thing get worst. CPU spikes are longer
  and it often requires a restart.

  Chromium details:

  --------------------
  Chromium	49.0.2623.108 (Developer Build) Ubuntu 14.04 (32-bit)
  Revision	d65a1c2f313b54fb0b90bb8a1082e4f5ecba2dda
  OS	Linux 
  Blink	537.36 (@d65a1c2f313b54fb0b90bb8a1082e4f5ecba2dda)
  JavaScript	V8 4.9.385.33
  Flash	11.2.999.999
  User Agent	Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/49.0.2623.108 Chrome/49.0.2623.108 Safari/537.36
  Command Line	/usr/lib/chromium-browser/chromium-browser --ppapi-flash-path=/usr/lib/adobe-flashplugin/libpepflashplayer.so --ppapi-flash-version --enable-pinch --window-depth=24 --flag-switches-begin --disable-quic --flag-switches-end
  Executable Path	/usr/lib/chromium-browser/chromium-browser
  Profile Path	/home/msal/.config/chromium/Default
  Variations	cf5ed6e1-3f4a17df
  f1eb96ab-3f4a17df
  775ebbd7-3f4a17df
  f5dd6118-2f5721af
  4ea303a6-3f4a17df
  dbffab5d-f51b51
  c8b9b12d-d93a0620
  867c4c68-3f4a17df
  a70306ec-3f4a17df
  --------------------

  
  Attached in the Apport .crash report

  Thanks

  M.

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