Date: Wed, 13 Oct 1999 08:12:20 -0700 From: Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca> To: Mike Tancsa <mike@sentex.net> Cc: Mike Smith <mike@smith.net.au>, dg@root.com, FreeBSD-stable@FreeBSD.ORG Subject: Re: SMP + fxp0 wierdness Message-ID: <199910131513.IAA72452@cwsys.cwsent.com> In-Reply-To: Your message of "Mon, 11 Oct 1999 20:26:58 EDT." <4.1.19991011201932.04dabe40@granite.sentex.ca>
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In message <4.1.19991011201932.04dabe40@granite.sentex.ca>, Mike Tancsa writes:
> >> Hotmail has troubleshooted the problem down to the NCR controller. It
> >> appears that the problem only occurs when using one of those. If they plug
> >> in an Adaptec 2940 and use it instead of the onboard NCR then the problems
> >> disappear.
> >
> >We did this (you remember that we went through all this a while back,
> >right?), but we've also been seing reports from people that aren't
> >using NCR controllers.
>
> Could it just be a particular BIOS setting affecting things as well ? I
> didnt look at the issue too closely, but on the SMP box below, I was having
> inital problems until I re assigned the IRQs to be on more sane values if I
> recall correctly (e.g not 9/11 or shared with something else). I believe I
> also looked at some DMA settings in the BIOS, but it has been a while since
> I set this particular box up. On the box below, the IRQ values displayed
> in the dmesg, are not the same as what is displayed at boot up time. With
> it, I did get a few fxp time outs and such and the box did panic once. It
> could be something totally unrelated, but this discussion does ring a bell
> with me.
This reminds me of an AHC SCSI controller that froze during FreeBSD
boot after a Y2K BIOS patch had been installed. There could be some
timings that some BIOS's use that we don't know about.
Regards, Phone: (250)387-8437
Cy Schubert Fax: (250)387-5766
Sun/DEC Team, UNIX Group Internet: Cy.Schubert@uumail.gov.bc.ca
ITSD Cy.Schubert@gems8.gov.bc.ca
Province of BC
"e**(i*pi)+1=0"
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