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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [i965 Bisected]Piglit shaders_glsl-deriv-varyings fails on Mesa 10.4"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87391">87391</a>
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<th>Summary</th>
<td>[i965 Bisected]Piglit shaders_glsl-deriv-varyings fails on Mesa 10.4
</td>
</tr>
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<th>Product</th>
<td>piglit
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>high
</td>
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<th>Component</th>
<td>tests
</td>
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<th>Assignee</th>
<td>piglit@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>huax.lu@intel.com
</td>
</tr>
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<th>QA Contact</th>
<td>piglit@lists.freedesktop.org
</td>
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<th>CC</th>
<td>agomez@igalia.com, idr@freedesktop.org, mattst88@gmail.com
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<pre>System Environment:
--------------------------
Platform: i965
Libdrm:
(master)libdrm-2.4.58-19-gf99522e678dbbaffeca9462a8edcbe900574dc12
Mesa: (10.4)bccfe7ae0f4e11a0219eb92f7070b1fc70bc6fd6
Xserver: (server-1.16-branch)xorg-server-1.16.2.901
Xf86_video_intel:(master)2.99.916-177-g99537089346ed7a1bc6b02349fad93845e865bb9
Libva: (master)8986ec692b19d8dd6bd2aa118b5dffbd05a8f909
Libva_intel_driver:(master)b5d6d9d425a6d539b27d22992bda05f79d1a0622
Kernel: (drm-intel-fixes)b0616c5306b342ceca07044dbc4f917d95c4f825
Piglit: f18b947d7c03b81b989ed47551dc24bcc29cc0fc
Bug detailed description:
---------------------------
This case fails on Mesa 10.4 branch and works well on Mesa master branch.Bisect
shows it's a Piglit regression.
Bisect shows: b1ee0f3214028cd724028f697ac5ee7b6240de10 is the first bad commit.
commit b1ee0f3214028cd724028f697ac5ee7b6240de10
Author: Andres Gomez <<a href="mailto:agomez@igalia.com">agomez@igalia.com</a>>
AuthorDate: Fri Dec 12 17:13:55 2014 +0100
Commit: Matt Turner <<a href="mailto:mattst88@gmail.com">mattst88@gmail.com</a>>
CommitDate: Mon Dec 15 11:41:54 2014 -0800
glsl-deriv-varyings: Added checks for derivatives on parameters with
negative or abs modifiers
Exposes a bug in the i965 driver.
Bugzilla: <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Inverted bumpmap in webgl applications"
href="show_bug.cgi?id=82991">https://bugs.freedesktop.org/show_bug.cgi?id=82991</a>
Reviewed-by: Matt Turner <<a href="mailto:mattst88@gmail.com">mattst88@gmail.com</a>>
output:
libGL: screen 0 does not appear to be DRI3 capable
libGL: pci id for fd 4: 8086:0152, driver i965
libGL: OpenDriver: trying /opt/X11R7/lib/dri/tls/i965_dri.so
libGL: OpenDriver: trying /opt/X11R7/lib/dri/i965_dri.so
libGL: Error in /etc/drirc line 1, column 0: no element found.
libGL: Error in /root/.drirc line 1, column 0: no element found.
libGL: Error in /etc/drirc line 1, column 0: no element found.
libGL: Error in /root/.drirc line 1, column 0: no element found.
Probe color at (280,125)
Expected: 0.800000 0.400000 0.000000
Observed: 0.000000 0.000000 0.000000
PIGLIT: {"result": "fail" }
Reproduce steps:
-------------------------
1. xinit
2. bin/glsl-deriv-varyings -auto -fbo</pre>
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