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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>high
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [SNB/BDW bisected]igt/gem_userptr_blits fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=79237">79237</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[SNB/BDW bisected]igt/gem_userptr_blits fails
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jinxianx.guo@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=99819" name="attach_99819" title="dmesg">attachment 99819</a> <a href="attachment.cgi?id=99819&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Yes.
It's a igt regression issue, the result before was skipped
Non-working platforms: SNB BDW
==kernel==
--------------------------
origin/drm-intel-nightly: c37f30ddc2921eccbf0be87c7742b56fbde53a81(fails)
drm-intel-nightly: 2014y-05m-23d-13h-57m-55s integration manifest
origin/drm-intel-next-queued: f83d6518a13020e3cf7abbcc6b4e6d34459d9a9f(fails)
ddrm/i915: Kill private_default_ctx off
origin/drm-intel-fixes: c1240bd2842f6ec26d7dc1d9c845a197a41d33fe(skips)
drm/i915: Prevent negative relocation deltas from wrapping
==Bug detailed description==
-----------------------------
igt/gem_userptr_blits fails
Output:
./gem_userptr_blits
IGT-Version: 1.6-gff3c122 (x86_64) (Linux:
3.15.0-rc3_drm-intel-next-queued_f83d65_20140525+ x86_64)
Aperture size is 4096 MiB
Total RAM is 3865 MiB
Subtest input-checking: SUCCESS
Subtest usage-restrictions: SUCCESS
Subtest invalid-mapping: SUCCESS
Subtest forbidden-operations: SUCCESS
Testing unsynchronized mappings...
Subtest create-destroy-unsync: SUCCESS
Subtest unsync-overlap: SUCCESS
Subtest unsync-unmap: SUCCESS
Subtest unsync-unmap-cycles: SUCCESS
Subtest unsync-unmap-after-close: SUCCESS
Using 2x2730 1MiB buffers
Verifying initialisation...
Cyclic blits cpu->gpu, forward...
Cyclic blits gpu->cpu, backward...
Random blits...
Subtest coherency-unsync: SUCCESS
gem_userptr_blits: gem_userptr_blits.c:650: sigbus: Assertion `0' failed.
Aborted
==Reproduce steps==
----------------------------
1. ./gem_userptr_blits
==Bisect results==
----------------------------
commit 9911f3f0cf202444f1ef2399f5961605880b7360
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
AuthorDate: Thu May 22 10:20:33 2014 +0100
Commit: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
CommitDate: Thu May 22 10:22:04 2014 +0100
igt/gem_userptr_blits: Fix up last minute API changes
When the patch was merged, the ioctl numbers had to be adjusted to leave
no holes. Also there was a final piece of munging of the API to
downgrade unsynced userptr for export over dma-buf.
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>></pre>
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