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    <body><span class="vcard"><a class="email" href="mailto:martin.peres@free.fr" title="Martin Peres <martin.peres@free.fr>"> <span class="fn">Martin Peres</span></a>
</span> changed
          <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>
          <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Priority</td>
           <td>high
           </td>
           <td>highest
           </td>
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        <div>
            <b><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#c7">Comment # 7</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 <span class="vcard"><a class="email" href="mailto:martin.peres@free.fr" title="Martin Peres <martin.peres@free.fr>"> <span class="fn">Martin Peres</span></a>
</span></b>
        <pre>(In reply to Ville Syrjala from <a href="show_bug.cgi?id=110331#c6">comment #6</a>)
<span class="quote">> (In reply to Ville Syrjala from <a href="show_bug.cgi?id=110331#c5">comment #5</a>)
> > (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.

> Yeah, no C-states visible on icl-u2. So low power watermarks and whatnot not
> getting tested at all currently.</span >

Changing the priority to highest because of the testing gap that will
potentially lead to flickering screens.</pre>
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