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Date:      Thu, 5 Dec 2002 10:21:58 +0100
From:      Robert Bopko <zero@estimese.net>
To:        Terry Lambert <tlambert2@mindspring.com>
Cc:        smp@freebsd.org
Subject:   Re: Intel SE7500CW2 narrowed down...
Message-ID:  <20021205092158.GB7065@finom.estimese.net>
In-Reply-To: <3DEEABFD.A40A735E@mindspring.com>
References:  <XFMail.20021204152439.jhb@FreeBSD.org> <3DEEABFD.A40A735E@mindspring.com>

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just a note. the intel E7500 chipset we are using here is
in other dual xeon motherboards too e.g.(tyan,msi,supermicro)
and these don't have problems with freebsd-smp.

On Wed, Dec 04, 2002 at 05:29:33PM -0800, Terry Lambert wrote:
> I think the serverworks chipset can only run in 2 of the 4 modes,
> at least as programmed by the BIOS, and goes off in the weeds,
> otherwise (the first thing an AP does is grab giant, which means
> it tries to grab the interrupts, as a side effect).  It may be
> that the chipset is plain busted.  Note that one of the OS's that
> works doesn't run in APIC I/O mode at all, and the other OS that
> works runs in virtual wire mode.

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