<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [IGT][BDW] kms_frontbuffer_tracking@fbc-*draw* has inconsistent results" href="https://bugs.freedesktop.org/show_bug.cgi?id=101623#c10">Comment # 10</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [IGT][BDW] kms_frontbuffer_tracking@fbc-*draw* has inconsistent results" href="https://bugs.freedesktop.org/show_bug.cgi?id=101623">bug 101623</a> from <a class="email" href="mailto:marta.lofstedt@intel.com" title="Marta Löfstedt <marta.lofstedt@intel.com>"> Marta Löfstedt</a> <pre>If I run the kms_frontbuffer_tracking tests from the current IGT on a 4.2 vanilla kernel (4.2 was release around the time when igt@64590c7b7 was merged) all tests fail. If I run igt@64590c7b7 on 4.2 kernel some of the pinpointed test consistently fail others consistently pass. If I run igt@64590c7b7 on 4.13-rc3 kernel all kms_frontbuffer_tracking tests fail. So, in a we do indeed have a regression here. However, it seems that both the tests and the kernel have diverged so much during 2 years that it will not make sense to do a bisect. Instead I will need to do some timing experiments to see what is actually going on.</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>