Date: Sun, 27 Jul 1997 15:18:51 -0400 From: "matthew c. mead" <mmead@goof.com> To: John Kelly <mouth@ibm.net> Cc: hackers@FreeBSD.ORG Subject: Re: Modem problems Message-ID: <19970727151851.49300@goof.com> In-Reply-To: <33dd94bb.3095243@smtp-gw01.ny.us.ibm.net>; from John Kelly <mouth@ibm.net> on Sun, Jul 27, 1997 at 06:48:44PM %2B0000 References: <19970726201841.20682@goof.com> <33dd94bb.3095243@smtp-gw01.ny.us.ibm.net>
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On Sun, Jul 27, 1997 at 06:48:44PM +0000, John Kelly wrote: > On Sat, 26 Jul 1997 20:18:41 -0400, you wrote: > > Hi. I'm having some problems with a no-name internal > >modem that are baffling me, and I'm hoping to find some help. I > >recently started to need two serial ports in addition to my > >modem, so I moved it to sio3 and irq 2/9, whereas it used to be > >setup as sio1 irq 3. Once I changed the modem over, FreeBSD > >would no longer get decent transfer rates. > I have 16 serial ports in my machine. By means of resistors and > diodes, two of them are sharing IRQ 9, and they work fine under > FreeBSD 2-2-2. Hmm. > There are all sorts of things that can be wrong. I've heard some > people claim that because it's the "slave" interrupt, IRQ 2/9 would > not work properly in their machine, or anyone else's machine for that > matter. I've never found that to be true in any machine of mine, > though. I nearly always use IRQ 9 for a modem serial port without any > problems. Interesting. Like I mentioned, it works fine under every other operating system I've tried, which is why I'm asking here. > You might try a different IRQ. Even if you have to pull out some > other card to try IRQ 5, 7, or whatever, the most likely person to > diagnose the problem is you since you have access to the hardware. I'll yank this POS SB 32 PnP card and try it at irq 5. Unfortunately, I can't get the damn thing to stay at irq 10 under FreeBSD. Maybe that could be a solution. I'll try using the modem at IRQ 9 and see if it works. At that point, I'm not sure which way to turn. Any thoughts? Thanks for the response. -matt -- Matthew C. Mead mmead@goof.com http://www.goof.com/~mmead/
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