<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][SHARDS] igt@* - incomplete - NMI backtrace for cpu \d skipped: idling at acpi_processor_ffh_cstate_enter" href="https://bugs.freedesktop.org/show_bug.cgi?id=110331#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][SHARDS] igt@* - incomplete - NMI backtrace for cpu \d skipped: idling at acpi_processor_ffh_cstate_enter" href="https://bugs.freedesktop.org/show_bug.cgi?id=110331">bug 110331</a> from <a class="email" href="mailto:ville.syrjala@linux.intel.com" title="Ville Syrjala <ville.syrjala@linux.intel.com>"> Ville Syrjala</a> <pre>(In reply to Martin Peres from <a href="show_bug.cgi?id=110331#c3">comment #3</a>) > Let's monitor the failure rate now that the following commit has landed: > > <a href="https://cgit.freedesktop.org/drm/drm-intel/commit/?h=topic/core-for">https://cgit.freedesktop.org/drm/drm-intel/commit/?h=topic/core-for</a>- > CI&id=b573fba52f339dc4fadef7282af4a9413fd6173d > > CL HACK: Disable ACPI idle drivertopic/core-for-CI > There were few system hung observed while running i915_pm_rpm igt test. > FDO <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED FIXED - [CI][BAT] igt@*pm_rpm@* - incomplete" href="show_bug.cgi?id=108840">https://bugs.freedesktop.org/show_bug.cgi?id=108840</a> > Root cause is believed to due to page fault in ACPI idle driver. > (FDO <a href="show_bug.cgi?id=110331#c18">comment 18</a>). > It has been suggested by Daniel Vetter to disable ACPI idle > driver for Core-for-CI, only for ICL. > > This hacky patch is only for ICL processor and for Core-for-CI branch. > > v2: Fixed compilation errors raised by lkp. > commit message improvement. > > Cc: <a href="mailto:martin.peres@intel.com">martin.peres@intel.com</a> > Cc: <a href="mailto:daniel.vetter@intel.com">daniel.vetter@intel.com</a> > > Signed-off-by: Anshuman Gupta <<a href="mailto:anshuman.gupta@intel.com">anshuman.gupta@intel.com</a>> > Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> > Link: > <a href="https://patchwork.freedesktop.org/patch/msgid/1554791361-27684-1-git-send">https://patchwork.freedesktop.org/patch/msgid/1554791361-27684-1-git-send</a>- > <a href="mailto:email-anshuman.gupta@intel.com">email-anshuman.gupta@intel.com</a> Ugh. I think this means we've effectively disabled all C-states in CI. Last I looked intel_idle icl support wasn't upstream yet.</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>