<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [snb] GPU Hangs since Kernel-4.2 upgrade (global/aliasing ppgtt issue?)" href="https://bugs.freedesktop.org/show_bug.cgi?id=91894#c12">Comment # 12</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [snb] GPU Hangs since Kernel-4.2 upgrade (global/aliasing ppgtt issue?)" href="https://bugs.freedesktop.org/show_bug.cgi?id=91894">bug 91894</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>Hmm. Can you verify that running with 0875546c5318c85c13d07014af5350e9000bc9e9^ (i.e. the commit before the bisect result) is stable (say over the course of a few days)? The patch you just tested suggests that it is not a result of the lack of aliased GGTT entries, which is perhaps the most obvious effect of the bisected commit. Spotted one fumble in the patch, but that was fixed in commit 5e562f1dddfa3242cede5ec49888260a856a9da2 Author: Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>> Date: Thu Apr 30 11:02:31 2015 +0300 drm/i915: Clear vma->bound on unbinding in v4.2-rc1. Do you suspend/resume the system before the hang appears?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>