Date: Wed, 15 Oct 1997 16:35:42 +0930 From: Greg Lehey <grog@lemis.com> To: "Matthew D. Fuller" <fullermd@futuresouth.com> Cc: parrothd@midwest.net, freebsd-questions@FreeBSD.ORG Subject: Re: tty-level buffer overflows Message-ID: <19971015163542.17582@lemis.com> In-Reply-To: <Pine.BSF.3.96.971015015805.27275J-100000@shell.futuresouth.com>; from Matthew D. Fuller on Wed, Oct 15, 1997 at 02:04:15AM -0500 References: <19971015145606.47003@lemis.com> <Pine.BSF.3.96.971015015805.27275J-100000@shell.futuresouth.com>
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On Wed, Oct 15, 1997 at 02:04:15AM -0500, Matthew D. Fuller wrote: > On Wed, 15 Oct 1997, Greg Lehey wrote: > >> On Wed, Oct 15, 1997 at 12:19:14AM -0500, Matthew D. Fuller wrote: >>> If I set it to 28800, no problems. If I set it to 14400, no >>> problems. I know it's not my system that's slow; Cyrix 6x86 166, 72 >>> megs RAM, the serial ports are both 16550. >> >> What happens if you set the port speed to 57600? If that works, that >> should be enough for you. Otherwise you should check your cabling and >> modem setup. You should be using hardware handshake. Check this >> excerpt from "The Complete FreeBSD": > <snip> >> >> If you look at this profile, you'll notice that the active profile includes the >> parameter &K4. This means ``use XON/XOFF flow control''. This is not >> desirable: it's better to use RTS/CTS flow control. To fix it, >> > OK; maybe I did use bad phrasing... > Both serial ports REPORT 16550. cuaa1 is an internal 28.8 modem. I can't > look at my modem's settings now, obviously, since I'm PPP'd into my ISP, > but when I do this: > PPP ON mortis> show modem > device: /dev/cuaa1 speed:28800 > cs8, no parity, CTS/RTS on. > (blah blah blah) > doesn't that mean that it is enabled at all levels? It doesn't mean that the modem has CTS/RTS enabled. The only way to find that out is to ask it. Greg
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