<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - kworker consumes 100% of a cpu core when screen sleeps with amdgpu kernel driver."
href="https://bugs.freedesktop.org/show_bug.cgi?id=97471">97471</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>kworker consumes 100% of a cpu core when screen sleeps with amdgpu kernel driver.
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</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/AMDgpu
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>malcolmlewis@opensuse.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=126008" name="attach_126008" title="System information and perf data">attachment 126008</a> <a href="attachment.cgi?id=126008&action=edit" title="System information and perf data">[details]</a></span>
System information and perf data
Hi
I have configured my system to use the amdgpu kernel driver (note no
experimental support activated) on openSUSE Tumbleweed and running
4.8.0-rc2-3.gda13dfd-default. I did have to re-build the xf86-video-amdgpu to
add my Mullins R5 PCI-IDs. I don't see this when running the radeon driver.
Reproducible: Always
Steps to Reproduce:
1. Boot to Gnome desktop.
2. Set timeout for screen saver 1-15 minutes doesn't matter.
3. From a remote ssh session monitor via top and observe one cpu at ~100% when
screen save activates.
Actual Results:
I ran the following perf command to capture some data which will add as an
attachment;
perf record -F 250 -g -a sleep 10
perf report
Expected Results:
Not consume cpu when idle/screensaver mode.
Attachment includes;
20-amdgpu.conf, dmidecode.txt, perf_data_summary.txt, 4.8.rc3.perf.data,
os-release and Xorg.0.log</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>