From: Arjan van de Ven <arjanv@redhat.com>
To: Linus Torvalds <torvalds@transmeta.com>, linux-kernel@vger.kernel.org
Subject: Re: booting SMP P6 kernel on P4 hangs.
Date: Wed, 01 Aug 2001 10:39:54 +0100 [thread overview]
Message-ID: <3B67CE6A.A670093E@redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.21.0107310705580.1374-100000@penguin.homenet> <200107311757.f6VHvWH01678@penguin.transmeta.com>
Linus Torvalds wrote:
>
> In article <Pine.LNX.4.21.0107310705580.1374-100000@penguin.homenet> you write:
> >
> >Isn't SMP P6 kernel supposed to boot fine on a P4? Btw, booting with
> >"nosmp" works but booting with "noapic" hangs just the same.
>
> It should boot, and it looks like the problem may be a bad MP table.
Oh it is. And it's due to a recommendation Intel makes to bios writers.
As a result, every P4 I've encountered shares this bug. Intel knows it's
an invalid MP table, but refuses to change the recommendation.
Now all Linux installers that decide to install a SMP kernel if they
encounter
a MPTABLE already have a "except if it's a P4" exception nowadays..
Greetings,
Arjan van de Ven
next prev parent reply other threads:[~2001-08-01 9:40 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-31 6:10 booting SMP P6 kernel on P4 hangs Tigran Aivazian
2001-07-31 17:57 ` Linus Torvalds
2001-08-01 9:39 ` Arjan van de Ven [this message]
2001-08-01 9:47 ` Tigran Aivazian
2001-08-01 11:49 ` Maciej W. Rozycki
2001-08-02 12:30 ` Alan Cox
2001-08-02 14:00 ` john slee
2001-08-02 14:50 ` Alan Cox
2001-08-03 9:10 ` Chris Wedgwood
2001-08-03 8:50 ` Steffen Persvold
2001-08-01 16:18 ` Linus Torvalds
2001-08-02 0:51 ` Alan Cox
2001-08-03 10:48 ` Mark Hemment
2001-08-06 14:48 ` Maciej W. Rozycki
2001-08-06 15:08 ` Mark Hemment
-- strict thread matches above, loose matches on Subject: below --
2001-07-31 10:45 Mikael Pettersson
2001-08-01 16:00 Petr Vandrovec
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