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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB]Calltrace after running drv_suspend/forcewake:WARNING: CPU: 1 PID: 4409 at drivers/gpu/drm/i915/intel_uncore.c:460 gen6_gt_force_wake_put+0xed/0x13c [i915]()"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76823">76823</a>
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<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[IVB]Calltrace after running drv_suspend/forcewake:WARNING: CPU: 1 PID: 4409 at drivers/gpu/drm/i915/intel_uncore.c:460 gen6_gt_force_wake_put+0xed/0x13c [i915]()
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-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>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jinxianx.guo@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=96643" name="attach_96643" title="dmesg about drv_suspend/forcewake">attachment 96643</a> <a href="attachment.cgi?id=96643&action=edit" title="dmesg about drv_suspend/forcewake">[details]</a></span>
dmesg about drv_suspend/forcewake
System Environment:
--------------------------
Platform: IVB
kernel: (drm-intel-nightly)19f629e96704b796efdad3cf13b1e8fb387d8ca7
Bug detailed description:
---------------------------
After running drv_suspend/forcewake, Calltrace WARNING: CPU: 1 PID: 4409 at
drivers/gpu/drm/i915/intel_uncore.c:460 gen6_gt_force_wake_put+0xed/0x13c
[i915]() occurs.
This bug occurs on -nightly and -next-queued branch, bug passed on -fixes
branch.
Test was blocked by <a class="bz_bug_link
bz_status_VERIFIED bz_closed"
title="VERIFIED FIXED - [Bisected]igt/drv_suspend aborted"
href="show_bug.cgi?id=76580">bug 76580</a> before.
output on -nightly kernel:
./drv_suspend --run-subtest forcewake
IGT-Version: 1.6-g4fdca96 (x86_64) (Linux:
3.14.0-rc8_drm-intel-nightly_19f629_20140331_debug+ x86_64)
rtcwake: wakeup from "mem" using /dev/rtc0 at Mon Mar 31 21:34:30 2014
Subtest forcewake: SUCCESS
Reproduce steps:
----------------------------
1. ./drv_suspend --run-subtest forcewake</pre>
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