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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BYT Regression]igt/gem_ctx_exec/reset-pin-leak causes system hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86992">86992</a>
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<th>Summary</th>
<td>[BYT Regression]igt/gem_ctx_exec/reset-pin-leak causes system hang
</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>Other
</td>
</tr>
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<th>OS</th>
<td>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
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<th>Reporter</th>
<td>jinxianx.guo@intel.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=110438" name="attach_110438" title="dmesg">attachment 110438</a> <a href="attachment.cgi?id=110438&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Yes.
Good commit on -next-queued:
a259953ea9b7c86e437e0a620d37aad150a00b8f(2014_11_25)
Non-working platforms: BYT
==kernel==
--------------------------
origin/drm-intel-nightly: 2014_12_04(fails)
origin/drm-intel-next-queued:6c930688cb04e81ca71092baf585f7ea1c670368(fails)
drm/i915/skl: Update the DDI translation values for DP/eDP 1.3
origin/drm-intel-fixes: b0616c5306b342ceca07044dbc4f917d95c4f825(works)
drm/i915: Unlock panel even when LVDS is disabled
==Bug detailed description==
-----------------------------
igt/gem_ctx_exec/reset-pin-leak causes system hang
Output:
root@x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./gem_ctx_exec
--run-subtest reset-pin-leak
IGT-Version: 1.8-g4e5c16c (x86_64) (Linux:
3.18.0-rc7_drm-intel-nightly_691817_20141202+ x86_64)
Test assertion failure function __real_main174, file gem_ctx_exec.c:224:
Failed assertion: exec(fd, handle, I915_EXEC_RENDER, ctx_id) == 0
Last errno: 14, Bad address
Subtest reset-pin-leak: FAIL (24.082s)
Warning on condition flags != 0 in fucntion check_stop_rings, file
drmtest.c:112
i915_ring_stop flags on exit 0x400000ff, can't quiescent gpu cleanly
==Reproduce steps==
----------------------------
1. ./gem_ctx_exec --run-subtest reset-pin-leak</pre>
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