Date: Mon, 04 Nov 1996 11:09:23 -0800 From: Amancio Hasty <hasty@rah.star-gate.com> To: se@ZPR.Uni-Koeln.DE (Stefan Esser) Cc: jkh@time.cdrom.com (Jordan K. Hubbard), tinguely@plains.nodak.edu (Mark Tinguely), hackers@FreeBSD.org, multimedia@FreeBSD.org Subject: Re: Matrox Meteor and PPRO problem found Message-ID: <199611041909.LAA02830@rah.star-gate.com> In-Reply-To: Your message of "Mon, 04 Nov 1996 19:20:29 %2B0100." <199611041821.TAA01810@x14.mi.uni-koeln.de>
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>From The Desk Of Stefan Esser : > Jordan K. Hubbard writes: > > > I could get Neptune based PCI 90 Mhz Pentium system to crash with the met eor > > > 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 ... Curious , how is the IRQs sharing currently being implemented? Or how does the PCI code know which adapter generated the interrupt? Tnks, Amancio
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