Created attachment 101804 [details] Xorg.conf to use sna acceleration and speed up login in dmesg [621699.944514] [drm] stuck on render ring [621699.944525] [drm] GPU crash dump saved to /sys/class/drm/card0/error [621699.944528] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [621699.944530] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel [621699.944533] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [621699.944535] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. [621699.956269] [drm:i915_reset] *ERROR* Failed to reset chip: -19
Created attachment 101805 [details] crashdump
Created attachment 101826 [details] [review] Only reuse already active batches. I just want to check how painful this is in practice first.
Throughput testing of that patch seems fine. Please see if it prevents the incoherent read.
commit 157e22cb8e96b0a9ffa7d58625fe2396f6084ff9 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Thu Jun 26 20:19:52 2014 +0100 sna: Only reuse pinned batches for 830/845 Trying to fly too close to the sun. :( Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80558 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Please do reopen if the problem persists. Thanks for the bug report.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.