<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][RESUME] igt@gem_exec_schedule@preempt* - skip - Test requirement: gem_scheduler_has_preemption(fd), SKIP" href="https://bugs.freedesktop.org/show_bug.cgi?id=111712#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][RESUME] igt@gem_exec_schedule@preempt* - skip - Test requirement: gem_scheduler_has_preemption(fd), SKIP" href="https://bugs.freedesktop.org/show_bug.cgi?id=111712">bug 111712</a> from <a class="email" href="mailto:martin.peres@free.fr" title="Martin Peres <martin.peres@free.fr>"> Martin Peres</a> <pre>Probably caused by <a href="https://cgit.freedesktop.org/drm-tip/commit/?id=ee73e2795b416b829f0e00e7c43154922dff495b">https://cgit.freedesktop.org/drm-tip/commit/?id=ee73e2795b416b829f0e00e7c43154922dff495b</a> author Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> 2019-09-12 14:23:13 +0100 committer Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> 2019-09-12 20:45:23 +0100 commit ee73e2795b416b829f0e00e7c43154922dff495b drm/i915/tgl: Disable preemption while being debugged We see failures where the context continues executing past a preemption event, eventually leading to situations where a request has executed before we have event submitted it to HW! It seems like tgl is ignoring our RING_TAIL updates, but more likely is that there is a missing update required for our semaphore waits around preemption. v2: And disable internal semaphore usage Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> Cc: Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>> Acked-by: Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>> Link: <a href="https://patchwork.freedesktop.org/patch/msgid/20190912132313.12751-1-chris@chris-wilson.co.uk">https://patchwork.freedesktop.org/patch/msgid/20190912132313.12751-1-chris@chris-wilson.co.uk</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>