Re: [Mesa-dev] Sandy Bridge heisenbug

2011-04-01 Thread Ian Pilcher
Well, I've had to give up on bisecting. It turns out that I really don't have a clear definition of working/broken that can be reliably tested. With some snapshots, I get problems as soon as I log in. With others, a few clicks does it. In other cases, the GPU only hangs after I've done a bunch

Re: [Mesa-dev] Sandy Bridge heisenbug

2011-04-01 Thread Ian Pilcher
On 04/01/2011 02:09 AM, Dave Airlie wrote: > > try the latest mesa in koji, > > I' ve pushed some reverts in, > > https://bugs.freedesktop.org/show_bug.cgi?id=35853 > > is upstream bug. > That appears to have made things worse. With mesa-dri-drivers-7.11-0.3.20110330.0.fc15.x86_64 I get: Ap

Re: [Mesa-dev] Sandy Bridge heisenbug

2011-04-01 Thread Dave Airlie
On Fri, Apr 1, 2011 at 5:51 AM, Ian Pilcher wrote: > With latest batch of Fedora 15 test updates, I get GPU hangs very > shortly after logging in (with KDE desktop effects enabled). > Unfortunately, the hangs do not occur if I boot with drm.debug=14. > > Any ideas on how I can gather more informat

Re: [Mesa-dev] Sandy Bridge heisenbug

2011-03-31 Thread Chris Wilson
On Thu, 31 Mar 2011 17:54:48 -0500, Ian Pilcher wrote: > On 03/31/2011 05:20 PM, Chris Wilson wrote: > > However, if you are reasonably confident that a change in mesa provokes > > the issue, you can bisect the commit in question. That may give another > > clue as to where to look next. > > I'm w

Re: [Mesa-dev] Sandy Bridge heisenbug

2011-03-31 Thread Ian Pilcher
On 03/31/2011 05:20 PM, Chris Wilson wrote: > However, if you are reasonably confident that a change in mesa provokes > the issue, you can bisect the commit in question. That may give another > clue as to where to look next. I'm willing to take a shot. Got a link to a good HOWTO? (My experience

Re: [Mesa-dev] Sandy Bridge heisenbug

2011-03-31 Thread Chris Wilson
On Thu, 31 Mar 2011 17:08:05 -0500, Ian Pilcher wrote: > Unfortunately, that patch appears to already be in the latest Fedora > kernel, kernel-2.6.38.2-9.fc15.x86_64, and I still get the hangs with > the latest Mesa packages. (No hangs with 7.10, though.) Bah, foiled again. You can try 'echo 1

Re: [Mesa-dev] Sandy Bridge heisenbug

2011-03-31 Thread Ian Pilcher
On 03/31/2011 04:05 PM, Chris Wilson wrote: > On Thu, 31 Mar 2011 15:01:53 -0500, Ian Pilcher wrote: >> >> Mar 30 20:47:16 ian kernel: [ 233.620717] [drm:i915_hangcheck_elapsed] >> *ERROR* >> Hangcheck timer elapsed... GPU hung > > Ah. You will want > > kernel commit 91355834646328e7edc6bd25176

Re: [Mesa-dev] Sandy Bridge heisenbug

2011-03-31 Thread Chris Wilson
On Thu, 31 Mar 2011 15:01:53 -0500, Ian Pilcher wrote: > On 03/31/2011 02:53 PM, Chris Wilson wrote: > > https://bugs.freedesktop.org/show_bug.cgi?id=35820 perhaps? > > I don't think so. My system doesn't hang, and I don't get any X crash, > just messages in the syslog (see below). > > I'm not

Re: [Mesa-dev] Sandy Bridge heisenbug

2011-03-31 Thread Ian Pilcher
On 03/31/2011 02:53 PM, Chris Wilson wrote: > https://bugs.freedesktop.org/show_bug.cgi?id=35820 perhaps? I don't think so. My system doesn't hang, and I don't get any X crash, just messages in the syslog (see below). I'm not expecting a quick fix. Just hoping for some ideas on gathering the ne

Re: [Mesa-dev] Sandy Bridge heisenbug

2011-03-31 Thread Chris Wilson
On Thu, 31 Mar 2011 14:51:19 -0500, Ian Pilcher wrote: > With latest batch of Fedora 15 test updates, I get GPU hangs very > shortly after logging in (with KDE desktop effects enabled). > Unfortunately, the hangs do not occur if I boot with drm.debug=14. https://bugs.freedesktop.org/show_bug.cgi?

[Mesa-dev] Sandy Bridge heisenbug

2011-03-31 Thread Ian Pilcher
With latest batch of Fedora 15 test updates, I get GPU hangs very shortly after logging in (with KDE desktop effects enabled). Unfortunately, the hangs do not occur if I boot with drm.debug=14. Any ideas on how I can gather more information? Thanks! -- ==