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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>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [bsw]igt/gem_fence_upload/thread-contention dmesg fail"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88315">88315</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[bsw]igt/gem_fence_upload/thread-contention dmesg fail
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hengx.ding@intel.com
</td>
</tr>
<tr>
<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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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=112115" name="attach_112115" title="dmesg output">attachment 112115</a> <a href="attachment.cgi?id=112115&action=edit" title="dmesg output">[details]</a></span>
dmesg output
==System Environment==
--------------------------
Regression: No. I didn't find good commit for this case.
platform: BSW
==kernel==
--------------------------
origin/drm-intel-nightly: 1113d085dfdba11c64772bfb4da26d1d3a163512(fails)
origin/drm-intel-next-queued: 985850bd145655d10dfcd5a03a3fc38540794ca7(fails)
origin/drm-intel-fixes: e3e6efcd638d3caa18d9e89f235c7d6fc32c1f0b(fails)
==Bug detailed description==
-----------------------------
running case igt/gem_fence_upload/thread-contention will fail:
./gem_fence_upload --run-subtest thread-contention
IGT-Version: 1.8-g1244fc6 (x86_64) (Linux:
3.19.0-rc3_drm-intel-nightly_1113d0_20150111+ x86_64)
Contended upload rate for 1 linear threads: 1393.607MiB/s
Contended upload rate for 1 tiled threads: 1420.076MiB/s
Contended upload rate for 2 linear threads: 967.410MiB/s
Contended upload rate for 2 tiled threads: 970.138MiB/s
Contended upload rate for 4 linear threads: 675.704MiB/s
Contended upload rate for 4 tiled threads: 683.534MiB/s
Contended upload rate for 8 linear threads: 610.603MiB/s
Contended upload rate for 8 tiled threads: 616.030MiB/s
Contended upload rate for 16 linear threads: 599.609MiB/s
Contended upload rate for 16 tiled threads: 597.937MiB/s
Contended upload rate for 32 linear threads: 595.678MiB/s
Contended upload rate for 32 tiled threads: 592.604MiB/s
Contended upload rate for 64 linear threads: 581.516MiB/s
Contended upload rate for 64 tiled threads: 59.982MiB/s
Test assertion failure function thread_contention, file gem_fence_upload.c:321:
Failed assertion: linear[1] > 0.75 * linear[0]
Subtest thread-contention: FAIL (22.113s)
Abnormal output in dmesg(more detail info please refer to the attachment):
dmesg -r |grep drm|grep '<[1-4]>'
<4>[ 1.482341] WARNING: CPU: 1 PID: 1138 at
drivers/gpu/drm/i915/intel_display.c:11933 intel_disable_plane+0x33/0x7c
[i915]()
<4>[ 1.482344] Modules linked in: i915 button video drm_kms_helper drm
cfbfillrect cfbimgblt cfbcopyarea
<4>[ 1.482345] CPU: 1 PID: 1138 Comm: kworker/u16:6 Not tainted
3.19.0-rc3_drm-intel-nightly_1113d0_20150111+ #282
<4>[ 1.482459] [<ffffffffa001813e>] ?
drm_mode_set_config_internal+0x4e/0xd2 [drm]
<4>[ 1.482461] [<ffffffffa0063d16>] ? restore_fbdev_mode+0xa8/0xc3
[drm_kms_helper]
<4>[ 1.482462] [<ffffffffa0064f90>] ?
drm_fb_helper_restore_fbdev_mode_unlocked+0x1f/0x56 [drm_kms_helper]
<4>[ 1.482464] [<ffffffffa0064ff5>] ? drm_fb_helper_set_par+0x2e/0x33
[drm_kms_helper]
<4>[ 1.482506] [<ffffffffa006524c>] ?
drm_fb_helper_initial_config+0x252/0x2ef [drm_kms_helper]
<4>[ 1.482541] WARNING: CPU: 1 PID: 1138 at
drivers/gpu/drm/i915/i915_gem.c:4530 i915_gem_free_object+0x131/0x26b [i915]()
<4>[ 1.482543] Modules linked in: i915 button video drm_kms_helper drm
cfbfillrect cfbimgblt cfbcopyarea
<4>[ 1.482544] CPU: 1 PID: 1138 Comm: kworker/u16:6 Tainted: G W
3.19.0-rc3_drm-intel-nightly_1113d0_20150111+ #282
<4>[ 1.482611] [<ffffffffa0018191>] ?
drm_mode_set_config_internal+0xa1/0xd2 [drm]
<4>[ 1.482612] [<ffffffffa0063d16>] ? restore_fbdev_mode+0xa8/0xc3
[drm_kms_helper]
<4>[ 1.482614] [<ffffffffa0064f90>] ?
drm_fb_helper_restore_fbdev_mode_unlocked+0x1f/0x56 [drm_kms_helper]
<4>[ 1.482615] [<ffffffffa0064ff5>] ? drm_fb_helper_set_par+0x2e/0x33
[drm_kms_helper]
<4>[ 1.482654] [<ffffffffa006524c>] ?
drm_fb_helper_initial_config+0x252/0x2ef [drm_kms_helper]
==Reproduce steps==
----------------------------
./gem_fence_upload --run-subtest thread-contention</pre>
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