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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW]igt/gem_concurrent_blit/cpu-bcs-early-read-forked-hang(rcs) sporadically takes more than 10 minutes or fail"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88435">88435</a>
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<th>Summary</th>
<td>[BDW]igt/gem_concurrent_blit/cpu-bcs-early-read-forked-hang(rcs) sporadically takes more than 10 minutes or fail
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr>
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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>
</tr>
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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>
</tr>
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<th>Component</th>
<td>DRM/Intel
</td>
</tr>
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<th>Assignee</th>
<td>intel-gfx-bugs@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>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=112262" name="attach_112262" title="dmesg">attachment 112262</a> <a href="attachment.cgi?id=112262&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: no, new case
Non-working platforms: BDW
==kernel==
--------------------------
drm-intel-nightly/95cce4b4c5f3ecaf9c1c01d42f670da2748fcffb
commit 95cce4b4c5f3ecaf9c1c01d42f670da2748fcffb
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date: Wed Jan 14 20:58:31 2015 +0100
drm-intel-nightly: 2015y-01m-14d-19h-58m-09s UTC integration manifest
==Bug detailed description==
-----------------------------
Run 3 cycles on BDW nightly kernel, it fails once and takes more than 10
mingutes twice.
It skip on -fixes kernel.
output:
[root@x-bdw01 tests]# time ./gem_concurrent_blit --run-subtest
cpu-bcs-early-read-forked-hang\(rcs\)
IGT-Version: 1.9-g3214a27 (x86_64) (Linux:
3.19.0-rc4_drm-intel-nightly_95cce4_20150115+ x86_64)
using 2x512 buffers, each 1MiB
Test assertion failure function gem_quiescent_gpu, file drmtest.c:168:
Failed assertion: drmIoctl((fd), ((((1U) << (((0+8)+8)+14)) | ((('d')) <<
(0+8)) | (((0x40 + 0x29)) << 0) | ((((sizeof(struct
drm_i915_gem_execbuffer2)))) << ((0+8)+8)))), (&execbuf)) == 0
Last errno: 5, Input/output error
child 10 failed with exit status 99
Subtest cpu-bcs-early-read-forked-hang(rcs): FAIL (257.637s)
real 4m21.527s
user 0m6.242s
sys 0m8.217s
[root@x-bdw01 tests]# time ./gem_concurrent_blit --run-subtest
cpu-bcs-early-read-forked-hang\(rcs\)
IGT-Version: 1.9-g3214a27 (x86_64) (Linux:
3.19.0-rc4_drm-intel-nightly_95cce4_20150115+ x86_64)
using 2x512 buffers, each 1MiB
Test assertion failure function gem_quiescent_gpu, file drmtest.c:168:
Failed assertion: drmIoctl((fd), ((((1U) << (((0+8)+8)+14)) | ((('d')) <<
(0+8)) | (((0x40 + 0x29)) << 0) | ((((sizeof(struct
drm_i915_gem_execbuffer2)))) << ((0+8)+8)))), (&execbuf)) == 0
Last errno: 5, Input/output error
child 5 failed with exit status 99
Subtest cpu-bcs-early-read-forked-hang(rcs): FAIL (721.842s)
real 12m5.701s
user 0m7.615s
sys 0m12.919s
==Reproduce steps==
----------------------------
1. time ./gem_concurrent_blit --run-subtest
cpu-bcs-early-read-forked-hang\(rcs\)</pre>
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