<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)" href="https://bugs.freedesktop.org/show_bug.cgi?id=54226#c42">Comment # 42</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)" href="https://bugs.freedesktop.org/show_bug.cgi?id=54226">bug 54226</a> from <a class="email" href="mailto:yarvin@yarchive.net" title="Norman Yarvin <yarvin@yarchive.net>"> Norman Yarvin</a> <pre>I'm seeing this bug, or something like it, on an older chip (G965, desktop version): Feb 19 22:05:56 muttonhead kernel: [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung Feb 19 22:05:56 muttonhead kernel: [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state Feb 19 22:05:56 muttonhead kernel: [drm:kick_ring] *ERROR* Kicking stuck wait on render ring Feb 19 22:05:57 muttonhead kernel: [drm:i915_reset] *ERROR* Failed to reset chip. after which the mouse pointer sticks in one spot (with most other things working), and then when I shut down X, the console fails to appear, requiring a reboot. Not knowing that the given file path was under /sys/kernel, I failed to capture the error state, but will do so next time this happens (which is maybe every other day). This is with a 3.7 kernel (Gentoo); before 3.7, the driver was stable. I don't know what the 'generation' numbers in the driver mean, but I'm guessing that generation 6 is later, so many of the suggested fixes would not make any difference on this machine.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>