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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 9:0:0x85dfbfff, in firefox [881], reason: Ring hung, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=94002">bug 94002</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;">QA Contact</td>
           <td>intel-gfx-bugs@lists.freedesktop.org
           </td>
           <td>
                
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Version</td>
           <td>XOrg git
           </td>
           <td>11.1
           </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 - [drm] GPU HANG: ecode 9:0:0x85dfbfff, in firefox [881], reason: Ring hung, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=94002#c9">Comment # 9</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [drm] GPU HANG: ecode 9:0:0x85dfbfff, in firefox [881], reason: Ring hung, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=94002">bug 94002</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>There were workarounds on SKL pushed in kernel, so please re-test with latest
kernel to see if it has some benefits on that work.

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

>From this error dump, hung is happening in render ring batch with active head
at 0xfff5d9cc, with 0x7a000004 (PIPE_CONTROL) as IPEHR.

Batch extract (around 0xfff5d9cc):

Bad length 7 in (null), expected 6-6
0xfff5d980:      0x7b000005: 3DPRIMITIVE: fail sequential
0xfff5d984:      0x0000000f:    vertex count
0xfff5d988:      0x00000003:    start vertex
0xfff5d98c:      0x00000000:    instance count
0xfff5d990:      0x00000001:    start instance
0xfff5d994:      0x00000000:    index bias
0xfff5d998:      0x00000000: MI_NOOP
Bad count in PIPE_CONTROL
0xfff5d99c:      0x7a000004: PIPE_CONTROL: no write, no depth stall, no RC
write flush, no inst flush
0xfff5d9a0:      0x00000000:    destination address
0xfff5d9a4:      0x00000000:    immediate dword low
0xfff5d9a8:      0x00000000:    immediate dword high
Bad count in PIPE_CONTROL
0xfff5d9b4:      0x7a000004: PIPE_CONTROL: no write, no depth stall, no RC
write flush, no inst flush
0xfff5d9b8:      0x00101c11:    destination address
0xfff5d9bc:      0x00000000:    immediate dword low
0xfff5d9c0:      0x00000000:    immediate dword high
Bad count in PIPE_CONTROL
0xfff5d9cc:      0x7a000004: PIPE_CONTROL: no write, no depth stall, no RC
write flush, no inst flush
0xfff5d9d0:      0x00000000:    destination address
0xfff5d9d4:      0x00000000:    immediate dword low
0xfff5d9d8:      0x00000000:    immediate dword high</pre>
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