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      <base href="https://bugs.freedesktop.org/">
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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_NEW "
   title="NEW - GPU HANG: ecode 0:0x86cd3cff, in Civ5XP [24060], reason: Ring hung, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91681">bug 91681</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;">Version</td>
           <td>XOrg git
           </td>
           <td>unspecified
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">QA Contact</td>
           <td>intel-gfx-bugs@lists.freedesktop.org
           </td>
           <td>
                
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Component</td>
           <td>DRM/Intel
           </td>
           <td>Drivers/DRI/i915
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Assignee</td>
           <td>intel-gfx-bugs@lists.freedesktop.org
           </td>
           <td>idr@freedesktop.org
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Product</td>
           <td>DRI
           </td>
           <td>Mesa
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - GPU HANG: ecode 0:0x86cd3cff, in Civ5XP [24060], reason: Ring hung, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91681#c1">Comment # 1</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - GPU HANG: ecode 0:0x86cd3cff, in Civ5XP [24060], reason: Ring hung, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91681">bug 91681</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>We seem to have neglected the bug a bit, apologies.

There were improvements pushed in kernel and Mesa that will benefit to your
system, so please re-test with latest kernel & Mesa to see if this issue is
still occurring.
 (you may also collect and attach logs collected thanks to apitrace:
<a href="http://apitrace.github.io/">http://apitrace.github.io/</a>)

In parallel, assigning to Mesa product (please let me know if I am mistaken
with this GPU Hang).

Kernel: 3.13.0-62-generic
Platform: Broadwell-U (pci id: 0x1616)
Mesa: [Please confirm your mesa version]

>From this error dump, hung is happening in render ring batch with active head
at 0x314c251c, with 0x79120000 (3DSTATE_PUSH_CONSTANT_ALLOC_VS) as IPEHR.

Batch extract (around 0x314c251c):

Bad length 7 in (null), expected 6-6
0x314c24ec:      0x7b000005: 3DPRIMITIVE: fail sequential
0x314c24f0:      0x00000104:    vertex count
0x314c24f4:      0x00000816:    start vertex
0x314c24f8:      0x00006a92:    instance count
0x314c24fc:      0x00000001:    start instance
0x314c2500:      0x00000000:    index bias
0x314c2504:      0x00000000: MI_NOOP
0x314c2508:      0x78230000: 3D UNKNOWN: 3d_965 opcode = 0x7823
0x314c250c:      0x00005840: MI_NOOP
0x314c2510:      0x78210000: 3D UNKNOWN: 3d_965 opcode = 0x7821
0x314c2514:      0x00005440: MI_NOOP
0x314c2518:      0x79120000: 3DSTATE_PUSH_CONSTANT_ALLOC_VS
0x314c251c:      0x0000000a:    dword 1
0x314c2520:      0x79150000: 3DSTATE_PUSH_CONSTANT_ALLOC_GS
0x314c2524:      0x000a000a:    dword 1
0x314c2528:      0x79160000: 3DSTATE_PUSH_CONSTANT_ALLOC_PS
0x314c252c:      0x0014000c:    dword 1</pre>
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      </p>


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