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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 <namcao@linutronix.de> Reviewed-by: Gabriele Monaco <gmonaco@redhat.com> Link: https://lore.kernel.org/r/ba5658fa13e49ada466b84a2c211f233037180b5.1781852967.git.namcao@linutronix.de Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
6 lines
165 B
Plaintext
6 lines
165 B
Plaintext
RULE = always (((RT and USER_THREAD) imply
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(not (WOKEN_BY_LOWER_PRIO or WOKEN_BY_SOFTIRQ)) or ALLOWLIST))
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ALLOWLIST = BLOCK_ON_RT_MUTEX
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or FUTEX_LOCK_PI
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