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Date: Fri, 04 Nov 2005 08:26:16 -0500
To: Kris Kennaway <kris@obsecurity.org>
From: Ian Lord <mailing-lists@msdi.ca>
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Cc: freebsd-questions@freebsd.org
Subject: Re: Bug ?: SCHED_4BSD VS SCHED_ULE
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Sorry about the rc.conf mistake, I should sleep more at night instead 
of typing stupidities :)

I was meaning
/usr/src/sys/amd64/config/MYKERNEL

I am running freebsd 5.4 amd64 version

Should there be a big improvement from running ULE ?, nobody reported 
the bug I have with it ?

Thanks

At 03:38 2005-11-04, Kris Kennaway wrote:
>On Thu, Nov 03, 2005 at 10:58:58PM -0500, Ian Lord wrote:
> > Hi,
> >
> > I am running amd64 version on a Dell 2850 Dual Xeon processor with emt64
> >
> > as soon as I turn on SCHED_ULE instead of SCHED_4BSD in rc.conf, the
> > system starts to behave strangely.
> >
> > During boot, named and sshd can't start normally, system is unstable, etc
> >
> > Is that a known bug or isnt it suppose to work anyway on this kind of
> > system ?
>
>You forgot to mention what version of FreeBSD you're running.  Also,
>you don't control the scheduler from rc.conf, it's compiled into your
>kernel.
>
>Anyway, SCHED_ULE is better on 6.0 than on previous releases, but it's
>still not officially supported, and there are some known problems with
>it.
>
>Kris
>