Date: Sat, 19 Jun 1999 21:52:52 +1000 (EST) From: Andrew MacIntyre <andymac@bullseye.apana.org.au> To: Andrew Brozgol <brozgol@Azovstal.COM.UA> Cc: freebsd-smp@FreeBSD.ORG Subject: Re: SMP panics: can't support type 2 default yet Message-ID: <Pine.OS2.3.95.990619213328.115B-100000@CENTRAL> In-Reply-To: <000801beb8af$88e0bd10$3601020a@brozgol.asctp.azov.stal>
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On Thu, 17 Jun 1999, Andrew Brozgol wrote:
> I have HP NetServer LM with 2xP66 and AIC-7770.
>
> mptable reports:
{...}
> MP default config type: 2
>
> bus: EISA, APIC: 82489DX
{...}
> panic: sorry, can't support type 2 default yet
I'm not an SMP guru, but you appear not to have received any responses to
your query.
I have an LM60 uniprocessor box running 2.2.7-R nicely, so the basic
hardware should be OK.
The problem is most likely that FreeBSD's SMP support has been mostly
developed on PCI based systems, rather than EISA-only systems like the
Netserver LM series. I'm guessing that the "MP default config type" of
2 indicates an EISA-only SMP system, or possibly more particularly the
EISA APIC. In any case, the current SMP support is incapable of
supporting both CPUs in your system :-(.
Given the fading availability of EISA systems, and the development effort
required to move FreeBSD's SMP from the current modest design to a more
sophisticated design, I doubt that the core SMP developers will be
motivated to add support for this older hardware.
You may be able to learn more about the "default config type" by refering
to mptable's source, and possibly by searching for MP specification
documentation on Intel's web site. If you do, and end up being able to
supply patches to add such support to the source tree, I'm sure the
patches would be welcome.
--
Andrew I MacIntyre "These thoughts are mine alone..."
E-mail: andrew.macintyre@aba.gov.au (work) | Snail: PO Box 370
andymac@bullseye.apana.org.au (play) | Belconnen ACT 2616
Fido: Andrew MacIntyre, 3:620/243.18 | Australia
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