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<title>linux.git/kernel/trace/rv/monitors/wakeup, branch master</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>rv/rtapp: Add wakeup monitor</title>
<updated>2026-07-24T07:01:10+00:00</updated>
<author>
<name>Nam Cao</name>
<email>namcao@linutronix.de</email>
</author>
<published>2026-06-19T07:21:22+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=6fdaab4e163609772bcc617b052a62435e89d77c'/>
<id>6fdaab4e163609772bcc617b052a62435e89d77c</id>
<content type='text'>
Add a wakeup monitor to detect a lower-priority task waking up a
higher-priority task.

The rtapp/sleep monitor already detects this. However, that monitor
triggers an error in the context of the wakee task and user only gets
the stacktrace of that task. It is also extremely useful to get the
stacktrace of the waker task, which this monitor offers. In other
words, this monitor complements the rtapp/sleep monitor.

Signed-off-by: Nam Cao &lt;namcao@linutronix.de&gt;
Reviewed-by: Gabriele Monaco &lt;gmonaco@redhat.com&gt;
Link: https://lore.kernel.org/r/ba5658fa13e49ada466b84a2c211f233037180b5.1781852967.git.namcao@linutronix.de
Signed-off-by: Gabriele Monaco &lt;gmonaco@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add a wakeup monitor to detect a lower-priority task waking up a
higher-priority task.

The rtapp/sleep monitor already detects this. However, that monitor
triggers an error in the context of the wakee task and user only gets
the stacktrace of that task. It is also extremely useful to get the
stacktrace of the waker task, which this monitor offers. In other
words, this monitor complements the rtapp/sleep monitor.

Signed-off-by: Nam Cao &lt;namcao@linutronix.de&gt;
Reviewed-by: Gabriele Monaco &lt;gmonaco@redhat.com&gt;
Link: https://lore.kernel.org/r/ba5658fa13e49ada466b84a2c211f233037180b5.1781852967.git.namcao@linutronix.de
Signed-off-by: Gabriele Monaco &lt;gmonaco@redhat.com&gt;
</pre>
</div>
</content>
</entry>
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