Both of those are failures after a stale back buffer.
commit 79fc9a923cdfa4218868f4c371ca80fd40f41253 Author: Chris Wilson <email address hidden> Date: Tue Aug 18 09:21:20 2015 +0100
sna/dri2: Immediately complete a stale swap if any are queued
Both of these patches are for very recent changes, so still onwards towards resolving the original issue...
Both of those are failures after a stale back buffer.
commit 79fc9a923cdfa42 18868f4c371ca80 fd40f41253
Author: Chris Wilson <email address hidden>
Date: Tue Aug 18 09:21:20 2015 +0100
sna/dri2: Immediately complete a stale swap if any are queued
Both of these patches are for very recent changes, so still onwards towards resolving the original issue...