Date: Fri, 7 Nov 1997 10:59:27 -0500 (EST) From: David Gilbert <dgilbert@strike.velocet.ca> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/4968: Problems working with Courier I-Modem Message-ID: <199711071559.KAA27027@strike.velocet.ca> Resent-Message-ID: <199711071600.IAA06485@hub.freebsd.org>
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>Number: 4968 >Category: kern >Synopsis: No flow control setting seems to make the system happy >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Nov 7 08:00:01 PST 1997 >Last-Modified: >Originator: David Gilbert >Organization: Velocet Communications >Release: FreeBSD 2.2.2-RELEASE i386 >Environment: FreeBSD 2.2.2-RELEASE on a Pentium w/ a Courier I-Modem. Courier acts like serial port (internal modem). Telix works properly. >Description: I have talked briefly about this problem once to one of the developers. Basically, if ctsrts is on cuaa2, the modem receives fine, but cannot transmit large files (using ppp). If ctsrts is off, sending files is fine (this is counter intuitive, but my own feeble explaination is that the card can control drain interupts), but receiving files will only work for some period of time before the kernel starts spitting out: Nov 7 03:16:24 wire1 /kernel: sio2: 54 more interrupt-level buffer overflows (total 788) Nov 7 03:16:28 wire1 /kernel: sio2: 40 more interrupt-level buffer overflows (total 828) I do hate to drag you people into our own problems (esp after the slight embarasment over the SCSI drive issue), but we've been wrestling with this one for several months. >How-To-Repeat: Connect Courier I-Modem to ISA bus, conffigure it for ppp, send a big file (or recieve a big file, depending on ctsrts). >Fix: >Audit-Trail: >Unformatted:
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