From: "Vladimir G. Ivanovic" <vladimir@acm.org>
To: linux-smp@vger.kernel.org
Cc: Matthias Kleine <kleine_matthias@gmx.de>
Subject: Re: Why is "noapic" with some Dual P3 boards necessary?
Date: Tue, 29 Oct 2002 09:03:23 -0800 [thread overview]
Message-ID: <200210291703.g9TH3Np26310@bach.leonora.org> (raw)
In-Reply-To: Your message of "Sun, 27 Oct 2002 13:08:04 +0200." <200210271208.04738.kleine_matthias@gmx.de>
It is not necessary to boot a CUV4X-DLS board with the "noapic" option.
I have been running a CUV4X-DLS board (== CUV4X-D + LAN + SCSI) for over
a year now with APIC. You must however fall back to MPS 1.1 from the
default MPS 1.4. (It's a BIOS setting.)
I suspect that a CUV4X-D board will have the same behavior.
--- Vladimir
------------------------------------------------------------------------
Vladimir G. Ivanovic http://leonora.org/~vladimir
2770 Cowper St. vladimir@acm.org
Palo Alto, CA 94306-2447 +1 650 678 8014
"MK" == Matthias Kleine <kleine_matthias@gmx.de> writes:
MK> I am using an ASUS CUV4X-D mainboard since the days this
MK> board came out (about beginning of 2001). Right from the
MK> beginning, it was necessary to start the kernel with the "noapic"
MK> option. This is, of course, a limitation of an SMP system, because
MK> there are not all the IRQ's of both CPU's available when booted
MK> "noapic". So I guess it must have some strong technical reason
MK> why this kind of board cannot be used in apic mode. Can anybody
MK> explain me the very reason why this is the case?
next prev parent reply other threads:[~2002-10-29 17:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-27 11:08 Why is "noapic" with some Dual P3 boards necessary? Matthias Kleine
2002-10-27 11:42 ` Alan Cox
2002-10-29 17:03 ` Vladimir G. Ivanovic [this message]
2002-10-29 18:42 ` Matthias Kleine
2002-10-29 18:50 ` Dr. Michael Weller
2002-10-30 19:20 ` Bill Davidsen
2002-10-30 22:11 ` Matthias Kleine
2002-10-30 23:48 ` Alan Cox
2002-10-31 2:54 ` vladimir
2002-10-31 3:27 ` Eff Norwood
2002-11-02 19:18 ` Vladimir G. Ivanovic
2002-10-31 20:29 ` Bill Davidsen
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