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Date: Mon, 4 Nov 1996 19:20:29 +0100
From: se@zpr.uni-koeln.de (Stefan Esser)
To: jkh@time.cdrom.com (Jordan K. Hubbard)
Cc: tinguely@plains.nodak.edu (Mark Tinguely), hackers@freebsd.org,
        multimedia@freebsd.org
Subject: Re: Matrox Meteor and PPRO problem found
In-Reply-To: <3229.847130054@time.cdrom.com>; from Jordan K. Hubbard on Nov 4, 1996 09:54:14 -0800
References: <3229.847130054@time.cdrom.com>
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Jordan K. Hubbard writes:
> > I could get Neptune based PCI 90 Mhz Pentium system to crash with the meteor
> > if I was capturing and viewing on the same machine.
> 
> I did notice one thing today, though I don't know if it's at all
> relevant:
> 
> ahc0 <Adaptec 2940 Ultra SCSI host adapter> rev 0 int a irq 9 on pci0:11
> meteor0 <Philips SAA 7116> rev 0 int a irq 9 on pci0:19:0
> 
> Notice how they're both on the same IRQ?  I can capture without saving
> all day, turn on grab-and-save, however, and I trigger the hang
> problem Amancio's been talking about.  Interesting coincidence.  Does
> our PCI code currently handle IRQ sharing with 100% success?

Well, I'm quite convinced it does ...

Regards, STefan