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From: Jan Kiszka <jan.kiszka@siemens.com>
Message-ID: <56028093.6050805@siemens.com>
Date: Wed, 23 Sep 2015 12:36:03 +0200
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Subject: Re: [Xenomai] Fwd: Re: Problem that the Linux scheduler is not
 called for some ms
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To: harald.fessl@sigmatek.at, xenomai@xenomai.org

On 2015-09-23 10:51, Harald Feßl wrote:
> Hi
> 
> The linux tasks are not blocked (not all).
> I think the problem is , that the linux scheduler function in the kernel
> is not called for some ms.
> I have also traced the calls to the scheduler function
> "static int __sched __schedule(void)"
> and sometimes when the decribed problem occur this function is not
> called while no linux task are running.

If no task is runnable, there is also no reason to invoke schedule.

Please post a ftrace log of your system, covering both a working and a
non-working cycle, including cobalt* and at least sched and irq events.

Jan

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