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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 9:0:0x87f9bffb"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94022">bug 94022</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;">Product</td>
<td>DRI
</td>
<td>Mesa
</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;">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 9:0:0x87f9bffb"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94022#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm] GPU HANG: ecode 9:0:0x87f9bffb"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94022">bug 94022</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 (since the one you are using
4.5.0-994-generic), so please re-test with latest kernel and without using
i915.preliminary_hw_support=1 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 0xfd47559c, with 0x78260000 (3DSTATE_BINDING_TABLE_POINTERS_VS) as IPEHR.
Batch extract (around 0xfd47559c):
0xfd475568: 0x78170009: 3D UNKNOWN: 3d_965 opcode = 0x7817
0xfd47556c: 0x00000000: MI_NOOP
0xfd475570: 0x00000001: MI_NOOP
0xfd475574: 0x00000000: MI_NOOP
0xfd475578: 0x00000000: MI_NOOP
0xfd47557c: 0x00000000: MI_NOOP
0xfd475580: 0x00000000: MI_NOOP
0xfd475584: 0xfd476960: UNKNOWN
0xfd475588: 0x00000000: MI_NOOP
0xfd47558c: 0x00000000: MI_NOOP
0xfd475590: 0x00000000: MI_NOOP
0xfd475594: 0x78260000: 3DSTATE_BINDING_TABLE_POINTERS_VS
0xfd475598: 0x000048e0: dword 1
0xfd47559c: 0x782a0000: 3DSTATE_BINDING_TABLE_POINTERS_PS
0xfd4755a0: 0x000048c0: dword 1
0xfd4755a4: 0x784a0000: 3D UNKNOWN: 3d_965 opcode = 0x784a
0xfd4755a8: 0x00000000: MI_NOOP
0xfd4755ac: 0x78080003: 3DSTATE_VERTEX_BUFFERS
0xfd4755b0: 0x00044018: buffer 0: sequential, pitch 24b
0xfd4755b4: 0xfdd22000: buffer address
0xfd4755b8: 0x00000000: max index
0xfd4755bc: 0x00001000: mbz</pre>
</div>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm] GPU HANG: ecode 9:0:0x87f9bffb"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94022#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm] GPU HANG: ecode 9:0:0x87f9bffb"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94022">bug 94022</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 Yuval Adam from <a href="show_bug.cgi?id=94022#c3">comment #3</a>)
<span class="quote">> This is likely a duplicate of ticket 94002 but it's good to get confirmation
> this is a widespread problem with Skylake graphics + hardware acceleration.
>
> FYI, i915.preliminary_hw_support=1 is useless in kernel >= 4.3.x since
> Skylake is no longer considered preliminary in those versions.</span >
right i915.preliminary_hw_support=1 shouldn't be used for SKL, but even both
94022 and 94002 have hung in batch render ring, it is happening on different
instruction and sequences.</pre>
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