On Mon, Dec 15, 2014 at 11:59:27AM -0600, Chris wrote: > On Mon, 2014-12-15 at 08:58 -0800, Greg KH wrote: > > On Mon, Dec 15, 2014 at 08:02:13AM -0600, Chris wrote: > > > I'm hoping I can get some advice/help here on this list with the above > > > problem that is causing system lockups. I didn't want to post to the > > > main list as I'm not sure it would be appropriate, I'm not even sure > > > it's appropriate here but I'll give it a try. If someone has a better > > > list to post to please let me know. > > > > > > I have noticed the lockups periodically since 09/13/2014. I can't > > > remember what kernel version was in use then possibly kernel > > > 3.13.0-35-generic or -36. It has continued periodically through versions > > > -39; -40 and now to -43. The last time this has happened was Dec 13 > > > 14:40:57 localhost kernel: [154858.820009] [drm:i915_hangcheck_ > > > elapsed] *ERROR* Hangcheck timer elapsed... render ring idle. At times > > > when it locks up I will have a cursor on a black screen and will have to > > > press the power button to restart other times it will lockup whenever > > > I'm in an application. At that time I can usually CTRL>ALT-F1 log in and > > > run 'sudo reboot' to restart the system. > > > > > > Kernel version information is: > > > > > > Linux version 3.13.0-43-generic (buildd@tipua) (gcc version 4.8.2 > > > (Ubuntu 4.8.2-19ubuntu1) ) #72-Ubuntu SMP Mon Dec 8 19:35:06 UTC 2014 > > > (Ubuntu 3.13.0-43.72-generic 3.13.11.11) > > > > That's a very old distro-specific kernel, try building a kernel.org > > release (like 3.18) and see if the problem is still there or not. No > > one in the community can help with old, distro-specific kernels, except > > for the distro itself. > > > > There are lots of Intel graphic driver changes happening in the kernel, > > I strongly recommend updating if you have an issue with your hardware. > > I got 2 _hours_ battery life extension in the 3.17 kernel alone due to > > Intel driver fixes. > > > > good luck, > > > > greg k-h > > > That's what I thought Greg but wanted to make sure. AFAIK I'm not having > any hardware related issues but I would like to know what the 'Hangcheck > timer' is. Possibly you can enlighten me? That looks like a driver-specific timer, the code would tell you more, take a look at it! greg k-h _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
