Surprise :/, here are the steps that I took (perhaps it'll give you some information showing my mistake):
1) I downloaded and installed all the debs - note missing linux-tools: https://pastebin.canonical.com/99199/ 2) Tested: $ uname -a Linux michael-X201EP 3.11.0-12-generic #19~lp1213917v1 SMP Wed Oct 16 16:05:23 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Good (suspend/resume without kworker issues), BUT, I didn't get a wifi connection at all (even before suspend):. 3) So I apt-get -f to add linux-tools, and then ensured the lp1213917 versions were all still valid: https://pastebin.canonical.com/99211/ 4) The network issue was still there and seemed to be apparmor related: https://pastebin.canonical.com/99208/ Figuring that the network issue may be related to an apparmor update I was missing or similar, I installed the archive versions of 3.11.0-12 to verify that I'd have the same issue there (which I did - no network at all): https://pastebin.canonical.com/99210/. What I didn't do at that point, but should have in retrospect, was confirmed that suspend/resume still triggered the kworker issue. 5) I did a dist-upgrade which was huge - as I'd stopped updating after a few rounds of the bisect (I can put it on chinstrap if it's useful - note-to-self, starts at 2013-10-17 10:56:46), and sure enough, the network issue is fixed, but to my surprise, so is the kworker issue: $ uname -a Linux michael-X201EP 3.11.0-12-generic #19-Ubuntu SMP Wed Oct 9 16:20:46 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Good. If there's something obvious that I did incorrectly, or it's obvious to you where an update may have fixed the issue, please let me know. Sorry for apparently wasting time here :/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1213917 Title: kworker thread 99.8 - 100% CPU after 1st suspend - no second suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1213917/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
