<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BAT] igt@gem_exec_suspend@basic-s3 - incomplete Softdog" href="https://bugs.freedesktop.org/show_bug.cgi?id=104310#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BAT] igt@gem_exec_suspend@basic-s3 - incomplete Softdog" href="https://bugs.freedesktop.org/show_bug.cgi?id=104310">bug 104310</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>Possibly: commit 16c8619a7c53fe05526c31d4758be0eeabd16364 Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> Date: Tue Dec 19 22:09:16 2017 +0000 drm/i915: Avoid context dereference inside execlists_submission_tasklet A lesson that has to be relearnt over and over again is that the request does not keep a reference to the context and so we cannot freely dereference the context from inside the execlists_submission_tasklet. In particular, we try to do so in the new GEM_TRACE() so convert those over to the port->context_id we keep for GEM debugging. This means the tracing now depends on DRM_I915_GEM_DEBUG. Fixes: bccd3b831185 ("drm/i915: Use trace_printk to provide a death rattle for GEM") References: <a class="bz_bug_link bz_status_NEW " title="NEW - [CI] igt@pm_rpm@system-suspend - incomplete - system hang/timeout" href="show_bug.cgi?id=104066">https://bugs.freedesktop.org/show_bug.cgi?id=104066</a> References: <a class="bz_bug_link bz_status_NEW " title="NEW - [BAT] [BDW only] igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c -incomplete timeout/system hang?" href="show_bug.cgi?id=104162">https://bugs.freedesktop.org/show_bug.cgi?id=104162</a> References: <a class="bz_bug_link bz_status_NEW " title="NEW - [CI] igt@drv_suspend@fence-restore-tiled2untiled - incomplete" href="show_bug.cgi?id=104242">https://bugs.freedesktop.org/show_bug.cgi?id=104242</a> References: <a class="bz_bug_link bz_status_NEW " title="NEW - [BAT] igt@gem_exec_suspend@basic-s3 - incomplete Softdog" href="show_bug.cgi?id=104310">https://bugs.freedesktop.org/show_bug.cgi?id=104310</a> 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>> Cc: Joonas Lahtinen <<a href="mailto:joonas.lahtinen@linux.intel.com">joonas.lahtinen@linux.intel.com</a>> Cc: Tvrtko Ursulin <<a href="mailto:tvrtko.ursulin@intel.com">tvrtko.ursulin@intel.com</a>> Reviewed-by: Michel Thierry <<a href="mailto:michel.thierry@intel.com">michel.thierry@intel.com</a>> Link: <a href="https://patchwork.freedesktop.org/patch/msgid/20171219220916.30882-1-chris@chris-wilson.co.uk">https://patchwork.freedesktop.org/patch/msgid/20171219220916.30882-1-chris@chris-wilson.co.uk</a></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> <li>You are on the CC list for the bug.</li> </ul> </body> </html>