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Date: Mon, 6 Mar 2006 20:49:08 -0500
From: Kris Kennaway <kris@obsecurity.org>
To: JoaoBR <joao@matik.com.br>
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Cc: freebsd-amd64@freebsd.org
Subject: Re: SMP and IP_PREEMPTION
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On Mon, Mar 06, 2006 at 03:55:18PM -0300, JoaoBR wrote:
> On Monday 06 March 2006 14:38, John Baldwin wrote:
> > On Monday 06 March 2006 11:49, JoaoBR wrote:
> > >
> > > I experience sudden reboot, no panic, no message at all on SMP systems
> > > (releng_6 up-to-date) when the kernel is compiled with
> > >
> > >
> > > I am not so sure but appearently the problem is less with ULE and see=
ms
> > > to disappear with ULE and without IPI_PREEMPTION and the system runs =
up
> > > to almost 4Gb normally.
> > >
>=20
> >
> > I'm not aware of the problem, but I don't think IPI_PREEMPTION has been
> > widely tested yet.
>=20
> ok, do you think that wrong function could cause a silent reboot, not eve=
n=20
> "crash" in last output?

Yes.

Kris

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