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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>high
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [SNB/IVB/HSW Bisected]igt/gem_storedw_batches_loop/normal fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73866">73866</a>
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</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>ben@bwidawsk.net
</td>
</tr>
<tr>
<th>Summary</th>
<td>[SNB/IVB/HSW Bisected]igt/gem_storedw_batches_loop/normal fails
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>huax.lu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
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<th>Product</th>
<td>DRI
</td>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=92507" name="attach_92507" title="dmesg">attachment 92507</a> <a href="attachment.cgi?id=92507&action=edit" title="dmesg">[details]</a></span>
dmesg
System Environment:
--------------------------
Platform: Sandybridge/Ivybridge/Haswell/
kernel: (drm-intel-nightly)53cda67197a01358c9c1455f70dd89852a1d7c7a
Bug detailed description:
---------------------------
It fails on Sandybridge/Ivybridge/Haswell/ with -queued, -fixes and -nightly
kernel.
igt/gem_storedw_batches_loop/secure-dispatch also fails by same commit.
Bisect shows: 1552aa21124cabe762862bb414490510415a2b2d is the first bad commit
commit 1552aa21124cabe762862bb414490510415a2b2d
Author: Ben Widawsky <<a href="mailto:benjamin.widawsky@intel.com">benjamin.widawsky@intel.com</a>>
Date: Mon Jan 13 06:28:45 2014 -0800
gem_storedw_batches_loop: Fix for BDW
Existing code was trying to be too clever and wasn't properly emitting
the high dword, or the correct length.
Signed-off-by: Ben Widawsky <<a href="mailto:ben@bwidawsk.net">ben@bwidawsk.net</a>>
output:
IGT-Version: 1.5-g03d144d (i686) (Linux:
3.13.0-rc8_drm-intel-nightly_53cda6_20140121+ i686)
running storedw loop with stall every 1 batch
Test assertion failure function store_dword_loop, file
gem_storedw_batches_loop.c:116:
Last errno: 2, No such file or directory
Failed assertion: buf[0] == (0x42000000 | val)
value mismatch: cur 0x00000000, stored 0x42000000
Subtest normal: FAIL
Reproduce steps:
-------------------------
1. ./gem_storedw_batches_loop --run-subtest normal</pre>
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