Date: Tue, 2 Apr 2002 19:16:48 -0500 From: Coleman Kane <cokane@FreeBSD.ORG> To: Kenneth Culver <culverk@alpha.yumyumyum.org> Cc: FreeBSD-smp <smp@FreeBSD.ORG>, FreeBSD-stable <stable@FreeBSD.ORG>, Chris <crisc@vmunix.com> Subject: Re: Interrupt delivery on SMP 760MPX board 4.5-R/4-S Message-ID: <20020402191648.A40926@freebsd.org> In-Reply-To: <20020402160203.K47643-100000@alpha.yumyumyum.org> References: <20020402145540.A14822@freebsd.org> <20020402160203.K47643-100000@alpha.yumyumyum.org>
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Hey, send me over a dmesg+mptable output, your problem may be something else. -- coleman On Tue, Apr 02, 2002 at 04:03:20PM -0500, Kenneth Culver wrote: > > I believe it has something to do with the APIC on this board. I have a > > production Dual PIII VIA server running 4.2 to compare to and I noticed a > > few things: > > 1) This Dual Athlon machine is still routing 16 INT's in ICU-fashion > > 2) The ExtINT pin on the PIII system, in local INTs, is routed via a > > PCI bus, but the Athlon System routs this via the ISA bus. I think > > this is wrong. > > 3) Furthermore, all INTs are routed in ISA-fashion and the Bus in mptable > > is ISA (except NMI). There are no PCI routing pins listed at all (A-D). > > 4) The 5.0-CURRENT dmesg/mptable dump from the GUINNESS reference board > > also displays this behavior, which makes me think that it perhaps doesn't > > completely work, a bridged PCI card like my DFE-570TX might be worth a try. > > > > Ideally, from what I can see, PCI devices that are attached via > > IntA,B,C,D,etc.. and handled by the I/O APIC instead of the 8259's should > > be running off irq's > 15. They should also have PCI bus attachments for > > INTs listed in mptable. This is probably worth looking into, I grazed over > > the MP 1.4 spec, as well as some AMD tech docs. It would appear that for > > some reason, the INT is routed, but the OS doesn't set up the APIC properly, > > or maybe this is expected to be the job of the BIOS... Either way, it > > seems as if the Dual Athlon boards (at least ones I've seen) do not fully > > work yet. > > > Even with all that said, my Dual Proc PII 333, based on an intel mobo, > does not work right with FreeBSD 4.5, and broke in between 4.4 and 4.5. It > works but does not support the dual channel card. I don't know what caused > this but I do know this is the behavior I'm seeing. :-) > > Ken > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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