<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#c3">Comment # 3</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:martin.peres@free.fr" title="Martin Peres <martin.peres@free.fr>"> Martin Peres</a> <pre>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-CI&id=b573fba52f339dc4fadef7282af4a9413fd6173d">https://cgit.freedesktop.org/drm/drm-intel/commit/?h=topic/core-for-CI&id=b573fba52f339dc4fadef7282af4a9413fd6173d</a> 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-email-anshuman.gupta@intel.com">https://patchwork.freedesktop.org/patch/msgid/1554791361-27684-1-git-send-email-anshuman.gupta@intel.com</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>