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<head>
<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 --- - [Bisected]Rendercheck blend causes X segfault"
href="https://bugs.freedesktop.org/show_bug.cgi?id=57389">57389</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
<tr>
<th>Assignee</th>
<td>eric@anholt.net
</td>
</tr>
<tr>
<th>Summary</th>
<td>[Bisected]Rendercheck blend causes X segfault
</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>
<tr>
<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>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>Driver/intel
</td>
</tr>
<tr>
<th>Product</th>
<td>xorg
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=70401" name="attach_70401" title="xorg.0.log">attachment 70401</a> <a href="attachment.cgi?id=70401&action=edit" title="xorg.0.log">[details]</a></span>
xorg.0.log
System Environment:
--------------------------
Arch: x86_64
Platform: Ironlake
Libdrm: (master)libdrm-2.4.40-1-g7d42b49c0cf19dbb4531cd84efae51f95db2eea1
Mesa: (master)d82b873a501606d62b9f208b6d5cda79c9a6b4b8
Xserver:(master)xorg-server-1.13.0-143-g6a6c3afe71ac82a93d9fd0034dd5bbdcf0eae1ea
Xf86_video_intel:(master)2.20.13-22-g03fb9ded43f9bf8b73f99d5b3a8dc592fe22b523
Cairo: (master)62b795fe52c73ad58101c101aa77449f4b61a576
Libva: (staging)38c94cd922473095814ed9a9f99ad98fcc9c285d
Libva_intel_driver:(staging)c0ef9d99df37ae45589fecb898727be495e50304
Kernel: (drm-intel-nightly) 9423fabffc1c5298aec5100b34eec90fb8c70e2a
Bug detailed description:
-------------------------
It fails on ivybridge,sandybridge,ironlake and pineview.
case repeat and triangles also fail and have same bisect commit.
Bisect shows:fa5c573455cf63090dbb6d167d4e5f1cb23daf72 is the first bad commit.
commit fa5c573455cf63090dbb6d167d4e5f1cb23daf72
Author: Eric Anholt <<a href="mailto:eric@anholt.net">eric@anholt.net</a>>
AuthorDate: Sat Nov 17 13:11:13 2012 -0800
Commit: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
CommitDate: Tue Nov 20 11:39:47 2012 +0000
uxa: Refactor early-exit paths of uxa_try_driver_composite().
Saves 200b of code at -O2.
output:
rendercheck 1.4
Render extension version 0.11
Window format: r8g8b8
Found server-supported format: a8
Found server-supported format: a8r8g8b8
Found server-supported format: x8r8g8b8
Found server-supported format: b8g8r8a8
Found server-supported format: b8g8r8x8
Found server-supported format: r8g8b8
Found server-supported format: b8g8r8
Found server-supported format: r5g5b5
Found server-supported format: b5g5r5
Found server-supported format: x1r5g5b5
Found server-supported format: x1b5g5r5
Found server-supported format: r5g6b5
Found server-supported format: b5g6r5
Found server-supported format: x8b8g8r8
Found server-supported format: x2r10g10b10
Found server-supported format: x2b10g10r10
Beginning blend test on a8
(EE)
(EE) Backtrace:
(EE) 0: X (xorg_backtrace+0x49) [0x80b2d49]
(EE) 1: X (0x8048000+0x6ffca) [0x80b7fca]
(EE) 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb774140c]
(EE) 3: /opt/X11R7/lib/xorg/modules/drivers/intel_drv.so (0xb7465000+0xa476)
[0xb746f476]
(EE) 4: /opt/X11R7/lib/xorg/modules/drivers/intel_drv.so (0xb7465000+0xb113)
[0xb7470113]
(EE) 5: /opt/X11R7/lib/xorg/modules/drivers/intel_drv.so (0xb7465000+0xfd050)
[0xb7562050]
(EE) 6: X (0x8048000+0x138be7) [0x8180be7]
(EE) 7: X (CompositePicture+0x226) [0x8173976]
(EE) 8: X (0x8048000+0x13167c) [0x817967c]
(EE) 9: X (0x8048000+0x12c291) [0x8174291]
(EE) 10: X (0x8048000+0x3263d) [0x807a63d]
(EE) 11: X (0x8048000+0x1fbac) [0x8067bac]
(EE) 12: /lib/libc.so.6 (__libc_start_main+0xf3) [0x467896b3]
(EE) 13: X (0x8048000+0x1ff59) [0x8067f59]
(EE)
(EE) Segmentation fault at address 0x60000
Fatal server error:
Caught signal 11 (Segmentation fault). Server aborting
Reproduce steps:
----------------
1. start X
2. ./rendercheck -o src,over,overreverse,xor -t blend</pre>
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