Ignacio García Pérez wrote: > Hi, > > rt_task_wait_period() is spuriously returning -ETIMEDOUT. > > (spuriously = maybe once every two hours with period = 500us) > > I'm using the trunk code and that error code is not mentioned in the > rt_task_wait_period documentation. > > Any clues?
testsuite/latency makes use of rt_task_wait_period as well. Already tried to run it at the same frequency? Does it fail as well? Further question: Does this error correlate with some real deadline miss of your application? SMI&friends might be a reason here, check delays of the testsuite (and your kernel config, of course). Is the workaround enabled? Is it reported to be used (kernel log)? Jan
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