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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 - [drm] GPU HANG: ecode 7:0:0x85dffffc, in chromium [6879], reason: Ring hung, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=92262">bug 92262</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;">Component</td>
           <td>DRM/Intel
           </td>
           <td>Drivers/DRI/i915
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Version</td>
           <td>unspecified
           </td>
           <td>11.0
           </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>

         <tr>
           <td style="text-align:right;">QA Contact</td>
           <td>intel-gfx-bugs@lists.freedesktop.org
           </td>
           <td>
                
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [drm] GPU HANG: ecode 7:0:0x85dffffc, in chromium [6879], reason: Ring hung, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=92262#c4">Comment # 4</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [drm] GPU HANG: ecode 7:0:0x85dffffc, in chromium [6879], reason: Ring hung, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=92262">bug 92262</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.

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

Kernel: 4.1.8-1-lts
Platform: Haswell ULT (pci id: 0x0a26)
Mesa: 11.0.2

>From this error dump, hung is happening in render ring batch with active head
at 0x0070d700, with 0x7a000003 (PIPE_CONTROL) as IPEHR.

We can note also:
ERROR: 0x00000105
    TLB page fault error (GTT entry not valid)
    Invalid page directory entry error
    Cacheline containing a PD was marked as invalid


Batch extract (around 0x0070d700):

0x0070d6d0:      0x7b000005: 3DPRIMITIVE:
0x0070d6d4:      0x0000000f:    rect list sequential
0x0070d6d8:      0x00000003:    vertex count
0x0070d6dc:      0x00000000:    start vertex
0x0070d6e0:      0x00000001:    instance count
0x0070d6e4:      0x00000000:    start instance
0x0070d6e8:      0x00000000:    index bias
0x0070d6ec:      0x7a000003: PIPE_CONTROL
0x0070d6f0:      0x00101c11:    no write, cs stall, render target cache flush,
instruction cache invalidate, texture cache invalidate, vf fetch invalidate,
depth cache flush,
0x0070d6f4:      0x00000000:    destination address
0x0070d6f8:      0x00000000:    immediate dword low
0x0070d6fc:      0x00000000:    immediate dword high
0x0070d700:      0x78210000: 3DSTATE_VIEWPORT_STATE_POINTERS_SF_CLIP
0x0070d704:      0x00006f40:    pointer to SF_CLIP viewport
0x0070d708:      0x78240000: 3DSTATE_BLEND_STATE_POINTERS
0x0070d70c:      0x00006f01:    pointer to BLEND_STATE at 0x00006f00 (changed)</pre>
        </div>
      </p>


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