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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 - ubuntu 14.04 laptop restarts desktop session immediately on resume after suspend"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97981">bug 97981</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;">i915 features</td>
<td>
</td>
<td>GPU hang
</td>
</tr>
<tr>
<td style="text-align:right;">Version</td>
<td>XOrg git
</td>
<td>unspecified
</td>
</tr>
<tr>
<td style="text-align:right;">i915 platform</td>
<td>
</td>
<td>HSW
</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;">Assignee</td>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
<td>idr@freedesktop.org
</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;">Product</td>
<td>DRI
</td>
<td>Mesa
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - ubuntu 14.04 laptop restarts desktop session immediately on resume after suspend"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97981#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - ubuntu 14.04 laptop restarts desktop session immediately on resume after suspend"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97981">bug 97981</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 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: 4.4.0-38-generic
Platform: Haswell-ULT (pci id: 0x0a16)
Mesa: [Please confirm your mesa version]
>From this error dump, hung is happening in render ring batch with active head
at 0x00dd02ec, with 0x7a000003 (PIPE_CONTROL) as IPEHR.
Batch extract (around 0x00dd02ec):
0x00dd02bc: 0x7b000005: 3DPRIMITIVE:
0x00dd02c0: 0x00000004: tri list sequential
0x00dd02c4: 0x00000006: vertex count
0x00dd02c8: 0x00000000: start vertex
0x00dd02cc: 0x00000001: instance count
0x00dd02d0: 0x00000000: start instance
0x00dd02d4: 0x00000000: index bias
0x00dd02d8: 0x7a000003: PIPE_CONTROL
0x00dd02dc: 0x00101c11: no write, cs stall, render target cache flush,
instruction cache invalidate, texture cache invalidate, vf fetch invalidate,
depth cache flush,
0x00dd02e0: 0x00000000: destination address
0x00dd02e4: 0x00000000: immediate dword low
0x00dd02e8: 0x00000000: immediate dword high
0x00dd02ec: 0x780e0000: 3DSTATE_CC_STATE_POINTERS
0x00dd02f0: 0x00007f01: pointer to COLOR_CALC_STATE at 0x00007f00
(changed)
0x00dd02f4: 0x7a000003: PIPE_CONTROL
0x00dd02f8: 0x00101000: no write, cs stall, render target cache flush,
0x00dd02fc: 0x00000000: destination address
0x00dd0300: 0x00000000: immediate dword low
0x00dd0304: 0x00000000: immediate dword high</pre>
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