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Date:      Fri, 4 Nov 2005 03:38:51 -0500
From:      Kris Kennaway <kris@obsecurity.org>
To:        Ian Lord <mailing-lists@msdi.ca>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Bug ?: SCHED_4BSD VS SCHED_ULE
Message-ID:  <20051104083850.GA17364@xor.obsecurity.org>
In-Reply-To: <6.2.3.4.2.20051103225321.0252cc58@pop.msdi.ca>
References:  <6.2.3.4.2.20051103225321.0252cc58@pop.msdi.ca>

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On Thu, Nov 03, 2005 at 10:58:58PM -0500, Ian Lord wrote:
> Hi,
>=20
> I am running amd64 version on a Dell 2850 Dual Xeon processor with emt64
>=20
> as soon as I turn on SCHED_ULE instead of SCHED_4BSD in rc.conf, the=20
> system starts to behave strangely.
>=20
> During boot, named and sshd can't start normally, system is unstable, etc
>=20
> Is that a known bug or isnt it suppose to work anyway on this kind of=20
> 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

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