Lockups

Chris cpollock at embarqmail.com
Wed Jan 14 02:16:59 UTC 2015


On Wed, 2015-01-14 at 00:03 +0000, sktsee wrote:
> On Mon, 12 Jan 2015 20:27:22 -0600, Chris wrote:
> 
> > In regards to my previous post about booting another kernel I noticed in
> > my syslog snip from 7-8pm this popped up again:
> > 
> > Jan 12 19:43:52 localhost kernel: [11781.820024]
> > [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render
> > ring idle
> > 
> > I have no idea what this means but it's been in my syslog each time the
> > system locks up no matter what kernel version I'm running. Can someone
> > enlighten me?
> > 
> > 
> It looks like the error is with the Intel i915 graphics (drm - direct 
> rendering manager) on your system. 
> 
> Here's a couple out of many bug reports about it:
> https://bugs.freedesktop.org/show_bug.cgi?id=75394
> https://bugs.freedesktop.org/show_bug.cgi?id=70151
> 
> Even though some people report that new kernels solve the problem, many 
> others are still wrestling with the lockups. 
> 
> This link from Ubuntu forums provides a possible workaround:
> http://ubuntuforums.org/showthread.php?t=2208072
> 
> Poster suggests switching to a older acceleration method (from newer "sna" 
> to older "uxa".
> 
> Also, if this is an upgraded machine, you may want to verify that the 
> installed versions of the xorg packages are correct.
> 
> -- 
> sktsee
> 
> 
Thanks for the links, the first bug report I've added to as it fits
exactly the same issue as I have, the 2nd is different from what I can
see as well as the fix at Ubuntu forums. Since this happened again
yesterday I added another comment to the first one and since the 3.14
kernel didn't seem to fix it I went back to the newest 3.13 kernel since
it's not from a Ubuntu PPA. Not an upgraded box, this is a totally new
14.04.1 LTS that I installed around October after my Mandriva box fried.

Chris

-- 
Chris
KeyID 0xE372A7DA98E6705C
31.11°N 97.89°W (Elev. 1092 ft)
20:08:31 up 23:17, 1 user, load average: 0.32, 0.47, 0.72
Ubuntu 14.04.1 LTS, kernel 3.13.0-44-generic




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