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Date: Tue, 15 Jan 2002 12:44:30 +0100 (MET)
From: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
To: Keith Owens <kaos@ocs.com.au>
cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: Problem with ServerWorks CNB20LE and lost interrupts 
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Message-ID: <Pine.GSO.3.96.1020115123935.24748A-100000@delta.ds2.pg.gda.pl>
Organization: Technical University of Gdansk
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On Tue, 15 Jan 2002, Keith Owens wrote:

> > The "noapic" option should probably get removed -- it was meant as a
> >debugging aid (as many of the "no*" options) at the early days of I/O APIC
> >support, I believe...  Now the support is pretty stable.
> 
> Intel 440GX chipsets hang during SCSI probe with UP kernels unless you
> use noapic.  It works with SMP but many installers use UP kernels.
> Removing noapic will break install on all 440GX machines, there are a
> lot of them out there.

 Now, is that a chipset problem or a firmware (MP table) one?  If the
former, we should code a workaround triggered by the chipset's PCI ID, so
the I/O APIC path works, otherwise vendors should fix their firmware.  For
UP systems a simple possibility is to remove the MP table altogether if
it's too hard to fix -- it is not needed at all. 

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +

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