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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT BSW] gem_ctx_param_basic/non-root-set-no-zeromap causes *ERROR* gpu hanging too fast"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94869">94869</a>
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<th>Summary</th>
<td>[BAT BSW] gem_ctx_param_basic/non-root-set-no-zeromap causes *ERROR* gpu hanging too fast
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>tim.gore@intel.com
</td>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<pre>During BAT testing of a patch targeting gen9 only, several tests, of which
gem_ctx_param_basic/non-root-set-no-zeromap is one, cause "*ERROR* gpu hanging
too fast" in dmesg log on the bsw-nuc2 target, although the test reports
success.
This has also been seen in CI_DRM_1199 and CI_DRM_1175. Maybe related to <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW]igt/gem_exec_nop/render causes [drm:i915_context_is_banned [i915]] *ERROR* gpu hanging too fast, banning!"
href="show_bug.cgi?id=89633">bug
89633</a>.
Patch being tested is <a href="https://patchwork.freedesktop.org/series/5367/">https://patchwork.freedesktop.org/series/5367/</a>
This introduces a workaround in gen9_init_workarounds, which is also
conditional on
(IS_SKL_REVID(dev, SKL_REVID_C0, REVID_FOREVER) || IS_BROXTON(dev))
So this patch should not be able to affect a BSW target.
Regression build. CI_DRM_1200
================================================================
Stdout
IGT-Version: 1.14-gfd7fef6 (x86_64) (Linux: 4.6.0-rc2-gfxbench+ x86_64)
Subtest non-root-set-no-zeromap: SUCCESS (0.012s)
Stderr
Environment
PIGLIT_SOURCE_DIR="/opt/igt/piglit" PIGLIT_PLATFORM="mixed_glx_egl"
Command /opt/igt/tests/gem_ctx_param_basic --run-subtest
non-root-set-no-zeromap
dmesg
[ 577.819668] [drm:i915_set_reset_status [i915]] *ERROR* gpu hanging too fast,
banning!
[ 577.824606] drm/i915: Resetting chip after gpu hang
[ 583.813212] [drm:i915_set_reset_status [i915]] *ERROR* gpu hanging too fast,
banning!
[ 583.817731] drm/i915: Resetting chip after gpu hang</pre>
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