Date: Sun, 27 Sep 1998 16:30:21 -0400 From: Aaron Jeremias Luz <aaron@csh.rit.edu> To: Francisco Reyes <reyesf@newsguy.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: sio0 overflow Message-ID: <19980927163021.20886@homenet> In-Reply-To: <199809270056.RAA23237@newsguy.com>; from Francisco Reyes on Sat, Sep 26, 1998 at 08:56:25PM -0400 References: <199809270056.RAA23237@newsguy.com>
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On Sat, Sep 26, 1998 at 08:56:25PM -0400, Francisco Reyes wrote: > On Sat, 26 Sep 1998 20:05:26 -0400 (EDT), Jt wrote: > > > > >Yeppers 16650 is the only way to fix it totally. I tryed everthing with > >my isdn and still got overflow aliitle. > > > My dmesg output says 16650A! As far as I know, 16650s are available only on special I/O cards. Are you using an internal or external modem? You have to settle with the type of UART provided on an internal modem. The internal U.S. Robotics V.90 Sportster I use has a 16550A UART. The problem could be caused by paging to a PIO IDE drive. Paging has a very high priority and PIO IDE uses lots of CPU cycles. I have a 486 that suffers interrupt-level and tty-level buffer overflows because of this. What type of CPU, motherboard, and harddrive are you using? As long as you are using the modem for something like PPP, SLIP, or ZModem, this error is annoying but not critical. It's annoying because time must be spent resending data but not critical because the error is virtually always detected. 45 silo overflows isn't much to worry about. Aaron To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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