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 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1584051/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
