Date: Wed, 19 Jan 2000 09:59:34 +0100 From: "Koster, K.J." <K.J.Koster@research.kpn.com> To: 'FreeBSD Hardware mailing list' <freebsd-hardware@freebsd.org> Subject: Dodgy interrupts Message-ID: <59063B5B4D98D311BC0D0001FA7E45220FD14E@l04.research.kpn.com>
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Dear FreeBSD-hardware,
I seem to disagree with my ethernet card about interrupts. It could be that
the card is just plain old broken, but I don't want to buy a new one if
there's a chance it's going to do the exact same thing.
Set-up:
ABit BX/PX motherboard, AMD k6-233
4 PCI slots:
diamond Viper 550 (or 330... geez, why haven't I written this down)
2x nrc810
ehternet card (err. lnc1, I don't know the brand)
The ethernet card shares its interrupt (irq 14) with the USB controller. I
don't actually use the USB controller, so if someone can suggest how to
switch it off, please do.
I used to have my video board in the PCI slot that my ethernet conroller is
in now, but my system would randomly crash and freeze. Diamond's readme told
me to move the video board into an unshared interrupt slot, and it worked.
Later I got the ethernet card, which worked for a while, and now is broken
too.
I'm not a heavy user of the ethernet board, since for a long time I had no
machine to ethernet with. Now I NFS mount over TCP and that works, albeit
slow. UDP traffic is lost. I get "impossible packet length" and "NFS server
not responding", but things sort itself out after a few seconds. Windows
can't even use the card, but tells me it's "working properly". Go FreeBSD!
My questions:
Does the value of the irq matter? I hear lower irq's have higher priority.
Is a higer priority necessary for a modern ethernet board?
Are there problems with shared irq's on PCI boards? Abit in particular?
How come I only have problems with PCI ethernet boards, and all the ISA ones
I've ever used worked *always*?
Kees Jan
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