Re: [ANNOUNCE] 3.0.14-rt31 - ksoftirq running wild - FEC ethernetdriver to blame?

From: Steven Rostedt
Date: Tue Jan 17 2012 - 09:42:09 EST


On Tue, 2012-01-17 at 15:27 +0100, Tim Sander wrote:
> Hi
>
> I have further input to the ksoftirq/0 using as much cpu as available on a
> arm i.mx pcm043 platform without load with a 3.0.14-rt31 kernel and some local
> platform adaptions.
>
> > I was thinking about this ksoftirq0 running on max cpu. The context:
> > > > > and the running wild ksoftirqd0 most probably after the kernel
> > > > > message: "sched: RT throttling activated"

> I think that the message "sched: RT throttling activated" and the ksoftirqd
> running on full cpu are possibly to seperate errors. Btw. is there a way to
> find out which processes where conuming this timeframe. It would be nice to add
> info output which processes caused the throtteling. Is it possible to get this
> information out of the scheduler structure?
>

Peter,

This is your territory.

-- Steve


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