[Kernel-packages] [Bug 1213917] Re: kworker thread consuming 99.8 - 100% CPU after update

2013-08-19 Thread Joseph Salisbury
We can perform a kernel bisect to identify the commit that introduced this regression. Do you happen to know the last kernel version that did not exhibit this bug? If not, can you test the following kernels: v3.11-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11-rc1-saucy/ v3.11-rc2: htt

[Kernel-packages] [Bug 1213917] Re: kworker thread consuming 99.8 - 100% CPU after update

2013-08-19 Thread Joseph Salisbury
Also, this issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report[0]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug. Please follow the instructions

[Kernel-packages] [Bug 1213917] Re: kworker thread consuming 99.8 - 100% CPU after update

2013-08-19 Thread Michael Nelson
** Description changed: After updating today (hadn't updated for a while), my fan won't stop and top is showing: - PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND - 4 root 20 0

[Kernel-packages] [Bug 1213917] Re: kworker thread consuming 99.8 - 100% CPU after update

2013-08-19 Thread Michael Nelson
OK, I've just tested 3 times, and this issue seems to be triggered by suspend/resume, which works fine the first time, but after the first resume, the kworker CPU consumption starts and the next suspend fails (bug 1214071). I'll update to 3.11 and check if I can reproduce it there. -- You receiv

Re: [Kernel-packages] [Bug 1213917] Re: kworker thread consuming 99.8 - 100% CPU after update

2013-08-19 Thread Michael Nelson
On Mon, Aug 19, 2013 at 7:27 PM, Joseph Salisbury < joseph.salisb...@canonical.com> wrote: > Would it be possible for you to test the latest upstream kernel? Refer > to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest > v3.11 kernel[0]. > Yes - although since rebooting it's n

[Kernel-packages] [Bug 1213917] Re: kworker thread consuming 99.8 - 100% CPU after update

2013-08-19 Thread Joseph Salisbury
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.11 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 t