On Thu, Jan 03, 2013 at 06:11:23PM -0500, J. Bruce Fields wrote: > On Thu, Jan 03, 2013 at 04:16:24PM -0500, Josh Boyer wrote: > > On Thu, Jan 3, 2013 at 3:46 PM, J. Bruce Fields <bfields@xxxxxxxxxxxx> wrote: > > > I got a crash after a few minutes of running 3.8.0-rc2, was able to > > > switch to a vt and look at dmesg: > > > > > > [ 490.962545] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung > > > [ 490.963019] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state > > > [ 492.961446] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung > > > [ 492.965613] [drm:i915_reset] *ERROR* GPU hanging too fast, declaring wedged! > > > [ 492.965621] [drm:i915_reset] *ERROR* Failed to reset chip. > > > > > > Previously I was on 3.6.10-2.fc17.x86_64, which didn't have any such > > > problem. > > > > I'm not questioning that you haven't seen that error in F17, but we have > > had quite a few bug reports with similar error messages for a while now. > > Apparently there are lots of ways GPUs can get hung, so they might be > > different from what you're seeing. Just wanted to point out that it > > might not be a new 3.8 change that caused it. > > OK, sure. It reproduced very quickly after the upgrade, so I assumed it > was a regression. > > I'm running 3.7.0 now which hasn't shown any problem. > > I'll try a newer kernel again to see if it's really that easy for me to > reproduce. If you hit this again (even better if you have a way to reproduce) please grab the i915_error_state file from debugfs and file a bug on bugs.freedesktop.org against DRM - DRI (Intel). We do know of a few recent issues introduced around 3.7 kernels, preliminary patches are floating around. The error state should be good enough to decide whether you're hitting the same issues. Thanks, Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
