Date: Sun, 25 Jun 2000 02:03:02 -0600 From: Warner Losh <imp@village.org> To: David Bauer <bauer@genprofile.com> Cc: freebsd-mobile@FreeBSD.ORG Subject: Re: Trust FM560LKI modem force 8250 Message-ID: <200006250803.CAA10036@harmony.village.org> In-Reply-To: Your message of "Sun, 25 Jun 2000 06:00:24 -0000." <39559FF8.3F8A6D8F@genprofile.com> References: <39559FF8.3F8A6D8F@genprofile.com> <39549A8B.C3E323A9@genprofile.com> <20000624160818.D83874@stat.Duke.EDU>
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In message <39559FF8.3F8A6D8F@genprofile.com> David Bauer writes: : Sean O'Connell wrote: : > If a pccard modem locks up your machine when you tip it or use ppp : > and go into the term mode, the trick is to add a : > : > reset 1000 : > : > to the pccard.conf entry for your card. You shouldn't have to : > fiddle with sio flags. : Hi Sean, : : the reset helps a bit but there is still a problem with the fifo. If I : try ati11, which returns a long list of debugging information with the : modem status and the last connections statistics, then the kernel : complains: : "sio1: 178 more interrupt-level buffer overflows (total 296)" This isn't a problem with the fifo. This is a problem with FreeBSD not being able to deal with the data fast enough. The interrupt level buffer overflow means that FreeBSD doesn't have enough buffer space to get the data from the serial port for some reason. Sadly, I don't know how to tweak things to get more space, but I think others do. It may also be a flow control issue. If the modem isn't honoring flow control, then this may be the cause of the problem as well. What does stty -a < /dev/XXXX give you? : This error messages disappear if I disable the fifo with flag 0x00002. : But the modem is a V90. So I will probably run into trouble with speeds : above 9600 won't I ? Yes. We need to solve the more fundamental problem here. : The modem seems to be an OEM version of the Datalink 56K modem from : ActionTec. It uses the Lucent (Venus) chipset. Is there anythink known : about FreeBSD having problems with this chipset? Is this a PCI modem? It sounds similar to an actiontec pci modem that I had from them. However, the Venus doesn't soudn right for it being a problem :-) Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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