Date: Sat, 17 Jan 1998 16:27:35 -0800 From: John-Mark Gurney <gurney_j@efn.org> To: Chris Timmons <skynyrd@opus.cts.cwu.edu> Cc: Bill Trost <trost@cloud.rain.com>, mobile@FreeBSD.ORG Subject: Re: Fujitsu 635Tx: interim report Message-ID: <19980117162735.12783@hydrogen.nike.efn.org> In-Reply-To: <Pine.BSF.3.96.980117072624.23536A-100000@opus.cts.cwu.edu>; from Chris Timmons on Sat, Jan 17, 1998 at 07:37:37AM -0800 References: <m0xtFRk-0002WZC@jli.com> <Pine.BSF.3.96.980117072624.23536A-100000@opus.cts.cwu.edu>
next in thread | previous in thread | raw e-mail | index | archive | help
Chris Timmons scribbled this message on Jan 17: > This is one of life's great mysteries. At one point Nate found some sort > of relationship between this and X. I use a NEC-6030X which behaves most > of the time, but it seems that certain cisco console ports encourage the > problem more readily than others. For example, I can boot with xdm on > vty3, switch to vty0 and run kermit - plug into the dumb, no hw flow > control 9600 baud console of a router, and bang, crippling silo overflows > (not the innocuous ones I see periodically while using a modem cards.) I > can get momentary relief by closing and reopening the kermit session. > Other devices I can plug into and run forever without any problem. > > After thinking the problem had gone away I found a console the other day > that this would happen on reliably; perhaps I'll go back with a breakout > box and see if there isn't some extraneous signal which might be having an > effect. I'm running 2.2+pao circa June 1997. check that the device on the other end isn't sending data to fast down the line... the Ricochet modems run the serial clock at about 4% over spec... and I get sio overflows on my 486dx2/50 notebook if I have the port speed set over 19200bps.. the UART is a 16450 which I don't think helps any... :( > On Fri, 16 Jan 1998, Bill Trost wrote: > > > * I installed (well, restore'd) the entire OS via a hardwired SLIP link. > > That worked fine, but the first time I tried to use SLIP in multi-user mode, > > I started getting one silo overflow per packet (a serious throughput hit > > (-: ). PPP has the same problem. I do not understand why this is a problem > > -- either I misconfigured the kernel, or the hardware, or something else is > > wrong. Any tips would be appreciated. > > -- John-Mark Gurney Modem/FAX: +1 541 683 6954 Cu Networking P.O. Box 5693, 97405 Live in Peace, destroy Micro$oft, support free software, run FreeBSD
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19980117162735.12783>