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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 - [SKL] [drm] GPU HANG: ecode 9:0:0x85dffffb, in X [447], reason: Hang on render ring, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98309">bug 98309</a>
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<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;">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>
<tr>
<td style="text-align:right;">Product</td>
<td>DRI
</td>
<td>Mesa
</td>
</tr>
<tr>
<td style="text-align:right;">Version</td>
<td>DRI git
</td>
<td>unspecified
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL] [drm] GPU HANG: ecode 9:0:0x85dffffb, in X [447], reason: Hang on render ring, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98309#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL] [drm] GPU HANG: ecode 9:0:0x85dffffb, in X [447], reason: Hang on render ring, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98309">bug 98309</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>Mads, please retry as Chris is advising: with intel_iommu=igfx_off on your
boot command line.
There were also improvements pushed in Mesa that will benefit to your system,
so please re-test with latest 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: 4.9.0-rc1+
Platform: Skylake (pci id: 0x191b; PCI Revision: 0x06; PCI Subsystem:
1028:06e4)
Mesa: [Please confirm your mesa version]
>From this error dump, hung is happening in render ring batch with active head
at 0xc7ffe38c, with 0x7a000004 (PIPE_CONTROL) as IPEHR.
Batch extract (around 0xc7ffe38c):
0xc7ffe358: 0x7b000005: 3DPRIMITIVE: fail sequential
0xc7ffe35c: 0x00000006: vertex count
0xc7ffe360: 0x00000004: start vertex
0xc7ffe364: 0x00000000: instance count
0xc7ffe368: 0x00000001: start instance
0xc7ffe36c: 0x00000000: index bias
0xc7ffe370: 0x00000000: MI_NOOP
Bad count in PIPE_CONTROL
0xc7ffe374: 0x7a000004: PIPE_CONTROL: no write, no depth stall, no RC
write flush, no inst flush
0xc7ffe378: 0x00101001: destination address
0xc7ffe37c: 0x00000000: immediate dword low
0xc7ffe380: 0x00000000: immediate dword high
Bad count in PIPE_CONTROL
0xc7ffe38c: 0x7a000004: PIPE_CONTROL: no write, no depth stall, no RC
write flush, no inst flush
0xc7ffe390: 0x00000408: destination address
0xc7ffe394: 0x00000000: immediate dword low
0xc7ffe398: 0x00000000: immediate dword high
0xc7ffe3a4: 0x78230000: 3D UNKNOWN: 3d_965 opcode = 0x7823
0xc7ffe3a8: 0x00007e00: MI_NOOP</pre>
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