Date: Wed, 4 Mar 1998 22:10:12 -0500 From: dmaddox@scsn.net (Donald J. Maddox) To: Evan Champion <evanc@synapse.net>, Matthew Thyer <Matthew.Thyer@dsto.defence.gov.au>, Mike Smith <mike@smith.net.au> Cc: shimon@simon-shapiro.org, current@FreeBSD.ORG Subject: Re: silo overflows (Was Re: 3.0-RELEASE?) Message-ID: <19980304221012.62373@scsn.net> In-Reply-To: <053601bd47dd$6cedf300$c9252fce@cello.synapse.net>; from Evan Champion on Wed, Mar 04, 1998 at 09:21:37PM -0500 References: <053601bd47dd$6cedf300$c9252fce@cello.synapse.net>
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On Wed, Mar 04, 1998 at 09:21:37PM -0500, Evan Champion wrote: > >This happens a lot as after several hours (2 or 3) of using > >ijppp and XFree86 the count of FIFO overflows can be around 100. > > > I have a Pentium Pro 200 with 16650's (and the 16650's are detected) and > during a full install of FreeBSD over 128kbps ISDN (230.4kbps port speed) I > would get around 700 FIFO overflows. Someone would have to do a lot of > convincing to get me to believe the driver is working properly when a > machine like that can't handle a 128kbps datastream in single user mode... > I had this same problem, and the following fix from John Dyson works for me: -------------------------------------------------------------------- Try the modifications noted in the included info. I no longer get any kind of sio messages. -- John | Never try to teach a pig to sing, dyson@freebsd.org | it just makes you look stupid, jdyson@nc.com | and it irritates the pig. Index: sio.c =================================================================== RCS file: /local/home/ncvs/src/sys/i386/isa/sio.c,v retrieving revision 1.194 diff -r1.194 sio.c 117a118 > /* 119a121,123 > */ > #define RB_I_HIGH_WATER (TTYHOG / 2) > #define RS_IBUFSIZE (TTYHOG / 4) Add this to your system conf: options "MSIZE=256" options "TTYHOG=4096" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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