modem woes / IRQ sharing: 3COM PCI FaxModem
meb at bardenent.com
Sun Feb 8 16:40:09 PST 2004
A bit curious - what version of FreeBSD did you apply this against?
I ran into the same exact trouble, with the same modem (USR5610B) with one
particular motherboard running 5.1. Either the machine would freeze after a
couple minutes, or it would freeze when I tried to start communicating. This
only happened on one particular motherboard (5 other motherboards worked
fine, same exact model number).
For your reference, I found another modem that worked on all 6 systems - the
Multitech MT5634ZPX. We've already got ~100 of these 3com/USR modems, so
we're sufficiently stuck with them, but other than that one system they've
> -----Original Message-----
> From: owner-freebsd-hardware at freebsd.org [mailto:owner-freebsd-
> hardware at freebsd.org] On Behalf Of Rick C. Petty
> Sent: Thursday, February 05, 2004 3:32 PM
> To: John Baldwin
> Cc: freebsd-hardware at freebsd.org
> Subject: Re: modem woes / IRQ sharing: 3COM PCI FaxModem
> On Thu, Feb 05, 2004 at 11:23:37AM -0500, John Baldwin wrote:
> > You can try to force sio4 to share its IRQ by using the patch at
> > http://people.freebsd.org/~jhb/patches/sio_shareirq.patch
> > You won't need to set any flags, just the patch alone will force it to
> > its IRQ.
> Thank you! And-- SUCCESS! I finally found a PCI modem that works so now
> I'm happy, we can order another dozen.. BTW, the patch to
> dev/sio/sio_pci.c didn't apply cleanly, but it was a minor irritation.
> Thanks again for the help and for the fast responses! Much appreciated,
> -- Rick C. Petty
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