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Date: Wed, 20 Mar 2002 14:47:05 +0100 (CET)
From: Martin Wilck <Martin.Wilck@fujitsu-siemens.com>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
cc: Martin Wilck <Martin.Wilck@fujitsu-siemens.com>,
        Pavel Machek <pavel@suse.cz>, Ingo Molnar <mingo@elte.hu>,
        Linux Kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: Severe IRQ problems on Foster (P4 Xeon) system
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Dear Maciej,

thanks for your comments and the patch. I overlooked that NMI watchdog
thing. I'll test it, although I am certain that it'll fix our problem.

Btw, we _have_ already fixed our BIOS (at least on my test machine).
I just submitted the patch because I thought that Linux putting the
8259A in polling mode is also a dangerous thing that should be avoided
if possible. You have shown me that there are some more situations where
it is impossible than I had seen.

Many people seem to think our BIOS is particularly nasty. I'd like to
repeat that this is a pretty common Phoenix BIOS. Of course I can't tell
what other manufacturers do, but I'd consider it at least possible that
their BIOS's act similarly.

Martin

-- 
Martin Wilck                Phone: +49 5251 8 15113
Fujitsu Siemens Computers   Fax:   +49 5251 8 20409
Heinz-Nixdorf-Ring 1	    mailto:Martin.Wilck@Fujitsu-Siemens.com
D-33106 Paderborn           http://www.fujitsu-siemens.com/primergy





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