Date: Tue, 15 Apr 1997 12:04:11 -0700 From: Arlie Davis <arlied@microsoft.com> To: freebsd-smp@freebsd.org Cc: vanmaren@fast.cs.utah.edu, drussell@saturn-tech.com Subject: Re: Tyan ATX 1668 Message-ID: <7D06B4AA8B39D011A64900805F682CDA01001D7E@RED-09-MSG.dns.microsoft.com>
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-----Original Message----- From: Terry Lambert [SMTP:terry@lambert.org] Sent: Tuesday, April 15, 1997 9:58 AM To: Arlie Davis Cc: drussell@saturn-tech.com; vanmaren@fast.cs.utah.edu; terry@lambert.org; freebsd-smp@freebsd.org Subject: Re: Tyan ATX 1668 > So, having five PCI slots is completely "legitimate". You should be > able to put a PCI card in both slot 4 and 5 which both use INT A (or any > common PCI INT) and it _should_ work just fine. It doesn't, of course, > under most Intel-architecture OSes. It's not legitimate if the MPtable does not account for five PCI devices, so one of the devices is misidentified as an ISA device. [Arlie Davis] Of course. The implementation is just broken. You can't share interrupts between PCI and ISA devices. [Arlie Davis] Of course. Nothing that I wrote contradicts this -- I spoke only of the PCI spec.
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