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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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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 --- - [IVB/BYT/BDW/BSW]Piglit spec_glsl-1.50_execution_texelFetchOffset_gs-texelFetch-isampler1DArray sporadically causes GPU hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82642">82642</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>idr@freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[IVB/BYT/BDW/BSW]Piglit spec_glsl-1.50_execution_texelFetchOffset_gs-texelFetch-isampler1DArray sporadically causes GPU hang
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-3d-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>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>Drivers/DRI/i965
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
</tr></table>
<p>
<div>
<pre>System Environment:
--------------------------
Platform: BYT
Libdrm:
(master)libdrm-2.4.56-4-g07fead4462b2d537d0c3cae69a09272fc426c598
Mesa: (master)c66d928f2c9fa59e162c391fbdd37df969959718
Xserver:
(master)xorg-server-1.15.99.902-121-g2f5cf9ff9a0f713b7e038636484c77f113a5f10a
Xf86_video_intel:(master)2.99.914-47-gd974dabc8ac06e76bffe5824caf86fd072c35ed3
Libva: (master)3fddb7f937df4e0e15391bd65ae3c7552ea5b3d7
Libva_intel_driver:(master)82d2ed8d7da3619c0ea467c06604f5626fc0b901
Kernel: (drm-intel-nightly)da31e7c60be217316278a055dd3f91c33913270f
Bug detailed description:
---------------------------
It sporadically causes GPU hang on IVB/BYT/BDW/BSW with mesa master branch,
fail rate: 2/5. Run 10 cycles on 10.2 branch, it works well.
Following cases also have this issue:
spec_glsl-1.50_execution_texelFetchOffset_gs-texelFetch-sampler1DArray
spec_glsl-1.50_execution_texelFetchOffset_gs-texelFetch-usampler2DArray
spec_glsl-1.50_execution_texelFetch_gs-texelFetch-isampler1DArray
spec_glsl-1.50_execution_texelFetch_gs-texelFetch-usampler3D
output:
65x1x5
Probe at (5,7)
Expected: -0.000000 0.000000 0.000000 0.100000
Observed: 0.000000 0.000000 0.749020 0.000000
Probe at (71,7)
Expected: -0.000000 0.000000 0.250000 0.100000
Observed: 0.000000 0.000000 1.000000 0.000000
intel_do_flush_locked failed: Input/output error
dmesg:
<6>[22661.139006] [drm] stuck on render ring
<6>[22661.140623] [drm] GPU HANG: ecode 0:0x85ffffbd, in texelFetch [12893],
reason: Ring hung, action: reset
<6>[22661.140702] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
<6>[22661.140707] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
<6>[22661.140709] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
<6>[22661.140711] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
<6>[22661.140712] [drm] GPU crash dump saved to /sys/class/drm/card0/error
<6>[22667.138852] [drm] stuck on render ring
<6>[22667.140428] [drm] GPU HANG: ecode 0:0x85fffffb, in texelFetch [12893],
reason: Ring hung, action: reset
Reproduce steps:
-------------------------
1. xinit
2. bin/texelFetch offset gs isampler1DArray -fbo -auto</pre>
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