<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [SKL] igt/kms_plane/plane-position-covered-pipe-b-plane-2 fail and cause system crash" href="https://bugs.freedesktop.org/show_bug.cgi?id=92181#c14">Comment # 14</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [SKL] igt/kms_plane/plane-position-covered-pipe-b-plane-2 fail and cause system crash" href="https://bugs.freedesktop.org/show_bug.cgi?id=92181">bug 92181</a> from <a class="email" href="mailto:matthew.d.roper@intel.com" title="Matt Roper <matthew.d.roper@intel.com>"> Matt Roper</a> <pre>(In reply to Patrik Jakobsson from <a href="show_bug.cgi?id=92181#c13">comment #13</a>) > I haven't tested in a week but last time I looked I found that this is a > regression and bisected it to: > commit 942840371cde152fe57c15e0e8483b760e7763e3 > Author: Matt Roper <<a href="mailto:matthew.d.roper@intel.com">matthew.d.roper@intel.com</a>> > Date: Mon Sep 21 17:21:48 2015 -0700 > > It seems that at some point we're unreferencing a framebuffer that is in use. Has fb reference counting always been an issue since this bug was opened back in September or is that a relatively recent discovery? I just fixed a bug that could lead to refcount problems with <a href="http://patchwork.freedesktop.org/patch/68713/">http://patchwork.freedesktop.org/patch/68713/</a> although I feel like that bug was introduced too recently to be the original root cause here. I'm wondering if it could be multiple bugs contributing to the behavior seeing rather than a single bug.</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> </ul> </body> </html>