Re: sleepy linux self-test

From: Pavel Machek
Date: Wed Jan 30 2008 - 11:39:07 EST


On Wed 2008-01-30 17:35:11, Ingo Molnar wrote:
>
> * Pavel Machek <pavel@xxxxxx> wrote:
>
> > Hi!
> >
> > This version should work, at least it did not fail in my testing. It
> > does one test 5 second after bootup, then periodically once per 500
> > seconds. Different parameters are trivial to tweak.
>
> nice - is nohz=off still needed? (if not, what was the problem with
> nohz?)

Not needed, but I do not know where the nohz problem was. Waiting 5
seconds means userspace comes up and problem is somehow worked around.

The nohz problem was of the "you need to press keys to get forward
progress" -- the kind I tried to debug few times already :-(.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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