<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [snb regression] Hung GPU when resuming from suspend-to-disk on kernel 3.8" href="https://bugs.freedesktop.org/show_bug.cgi?id=64725#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [snb regression] Hung GPU when resuming from suspend-to-disk on kernel 3.8" href="https://bugs.freedesktop.org/show_bug.cgi?id=64725">bug 64725</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>In v3.8, there are a few scary patches that tried to speed up resume, and in particular started to diverge the suspend/hibernate paths - such as commit 1abd02e2dd7e0bd577000301fb2fd47780637387 Author: Jesse Barnes <<a href="mailto:jbarnes@virtuousgeek.org">jbarnes@virtuousgeek.org</a>> Date: Fri Nov 2 11:14:02 2012 -0700 drm/i915: don't rewrite the GTT on resume v4 Equally there are quite a few new TLB invalidate w/a in v3.8 which might be missed for the hibernate path. If you have time for a bisect, that would be very useful. I've been successfully hibernating my own f18 SNB - but that has been on 3.9 for some time.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>