Date: Mon, 7 Sep 1998 15:59:27 -0500 (CDT) From: Wm Brian McCane <root@bmccane.maxbaud.net> To: Mark Murray <mark@grondar.za> Cc: Bruce Evans <bde@zeta.org.au>, hardware@FreeBSD.ORG Subject: Re: Modem Lockups Message-ID: <Pine.BSF.3.96.980907155431.4623A-100000@bmccane.maxbaud.net> In-Reply-To: <199809071703.TAA29296@gratis.grondar.za>
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On Mon, 7 Sep 1998, Mark Murray wrote: > Wm Brian McCane wrote: > > > Are you sure irq7 is really disabled? lpt0 normally uses it. Swap hardwar > e > > > to eliminate possibility of bugs in the second modem. > > > > > > Bruce > > > > > Yes, I am sure. This computer is so old that it doesn't lpt0 on the > > motherboard. I have a IDE card installed, not a Multi-IO card. There are > > no com ports or printer ports in this machine (unless you count the > > modems). I do have an old SB-16 installed, but not being used/recognized. > > It is there to provide the 2ndary IDE bus for my CD-ROM. > > Call me crazy, but check that the sound card is not on IRQ 7. I know > it is uninitialised, but old hardware is funny... > > If necessary, put a piece of sticky tape over IRQ7 on the card to make > sure. > > M > -- > Mark Murray > Join the anti-SPAM movement: http://www.cauce.org > SB16 is set for IRQs 5, 10 and 15. Don't understand the 5 AND 10, but the 15 is for the IDE. I am now seeing occasional lockups on /dev/ttyd1 which is standard IRQ 3. Any other ideas? I am trying the "comcontrol" function, setting the dtrwait to 500 msec and drainwait to 180 msec. I was wondering if it might help to enable the "losses output interrupts" code in the kernel by setting the appropriate flag. Unfortunately, it is either 0x40000 or 0x00008 according to what I have seen in the code. During closer inspection this code looks a lot like Uwe Doering's FAS drivers for SCO/ISC/etal. Is this corect? I used to use that on ISC and never had these kinds of problems. brian To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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