From owner-freebsd-questions Tue Jul 16 15:38:55 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id PAA02819 for questions-outgoing; Tue, 16 Jul 1996 15:38:55 -0700 (PDT) Received: from ns.NL.net (ns.NL.net [193.78.240.1]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id PAA02809 for ; Tue, 16 Jul 1996 15:38:52 -0700 (PDT) Received: from stuyts by ns.NL.net via EUnet id AA20239 (5.65b/CWI-3.3); Wed, 17 Jul 1996 00:23:49 +0200 Received: by daneel.stuyts.nl (NX5.67f2/daneel940629) id AA25913; Tue, 16 Jul 96 23:59:43 +0200 Message-Id: <9607162159.AA25913@daneel.stuyts.nl> Content-Type: text/plain Mime-Version: 1.0 (NeXT Mail 3.3 v118.2) In-Reply-To: X-Nextstep-Mailer: Mail 3.3 (Enhance 1.2) Received: by NeXT.Mailer (1.118.2) From: Ben Stuyts Date: Tue, 16 Jul 96 23:59:37 +0200 To: questions@freebsd.org Subject: Re: 2.1.5R: UUCP errors, no flow control? Reply-To: ben@stuyts.nl References: Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Mon, 15 Jul 1996, Doug White wrote: > On Tue, 16 Jul 1996, Ben Stuyts wrote: > > First of all, I am new to FreeBSD, but am very impressed with what I've seen > so far. I have a little problem though: I am setting up a system with 2.1.5R, > and I can't get UUCP to work properly. > > There is an external modem (ZyXEL 1496E+) on cuaa1, and I am trying to > connect with another system through UUCP. Outgoing files go just fine, but > incoming files give lots of NAK's, checksum errors, etc. I do not see any > RTS/CTS flow control (I have one of those little RS232 tester on the rs232 > port), so I suspect it must be related to that. > > I would suspect your modem isn't set to assert hardware flow control then. > Adjust your modem as necessary and see if that helps. > > Or your cable is incomplete; make sure to get a complete serial cable that > supports hardware flow control. Well, I checked both today, even tried two other modems (another ZyXEL 1496E+ and a 2864), but still no good. Finally I disabled the two rs232 ports in the motherboard's bios, and put in an old isa-card with two 16450's and an LPT on it. Voila, it works... The funny thing is, I still don't see any flow control, but the errors are gone. Strange, huh? Could it be that the 16550 drivers are buggy? I guess I could try building a kernel with the 16550 features disabled, or is there an easier way to check this? Now, I wanted those additional ports anyway, but I read somewhere that that's not possible due to the pc's com port irq sharing, right? Best regards, Ben