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    <body><span class="vcard"><a class="email" href="mailto:yann.argotti@intel.com" title="yann <yann.argotti@intel.com>"> <span class="fn">yann</span></a>
</span> changed
          <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - non-recoverable hang/freeze following WARNING: CPU: 3 PID: 783 at drivers/gpu/drm/i915/intel_display.c:14189 intel_atomic_commit_tail+0xfd0/0xff0 [i915]"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=99057">bug 99057</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;">Keywords</td>
           <td>
                
           </td>
           <td>regression
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">i915 features</td>
           <td>
                
           </td>
           <td>GPU hang
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">i915 platform</td>
           <td>
                
           </td>
           <td>SKL
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>NEW
           </td>
           <td>NEEDINFO
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - non-recoverable hang/freeze following WARNING: CPU: 3 PID: 783 at drivers/gpu/drm/i915/intel_display.c:14189 intel_atomic_commit_tail+0xfd0/0xff0 [i915]"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=99057#c6">Comment # 6</a>
              on <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - non-recoverable hang/freeze following WARNING: CPU: 3 PID: 783 at drivers/gpu/drm/i915/intel_display.c:14189 intel_atomic_commit_tail+0xfd0/0xff0 [i915]"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=99057">bug 99057</a>
              from <span class="vcard"><a class="email" href="mailto:yann.argotti@intel.com" title="yann <yann.argotti@intel.com>"> <span class="fn">yann</span></a>
</span></b>
        <pre>(In reply to bugzilla from <a href="show_bug.cgi?id=99057#c5">comment #5</a>)
<span class="quote">> First instance in the journal there's a problem...

> [31603.149518] f25h kernel: [drm] GPU HANG: ecode 9:0:0xfffffffe, in
> gnome-shell [7105], reason: Hang on render ring, action: reset

> That comes before the cell phone photo; and the journal goes to
> [31723.152073] at which point there's a total crash and call trace. So it
> doesn't look like much information was lost in the log itself; but there was
> no way to get the GPU crash dump saved to /sys/class/drm/card0/error.</span >

<a href="mailto:bugzilla@colorremedies.com">bugzilla@colorremedies.com</a>, it could be really interesting to get this error
crash dump. Moreover, it will  useful, if you can enable a more verbose log for
drm by setting "drm.debug=0x1e log_buf_len=1M" in your boot command line and
then attached the kernel log (after issue is happening again).

I may also recommend that you use latest firmware (GuC loading is indicated as
skipped in your kernel log) ;  you can download directly from
<a href="https://01.org/linuxgraphics/intel-linux-graphics-firmwares">https://01.org/linuxgraphics/intel-linux-graphics-firmwares</a>

You may have a try by using "i915.enable_rc6=0" in your boot command line and
see if this issue is still occurring.</pre>
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