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Date:      Fri, 18 Jun 1999 17:33:04 -0700 (PDT)
From:      Doug White <dwhite@resnet.uoregon.edu>
To:        Andrew Fleming <f236@scatcat.fhsu.edu>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: interrupt-level buffer overflows
Message-ID:  <Pine.BSF.4.10.9906181731590.34137-100000@resnet.uoregon.edu>
In-Reply-To: <37672d0c.890178@scatcat.fhsu.edu>

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On Wed, 16 Jun 1999, Andrew Fleming wrote:

> Can anyone tell me what exactly this message means.  
> 
> > kernel log messages:
> > sio1: 25 more interrupt-level buffer overflows (total 25)

It means that the kernel couldn't service the serial port fast enough and
it dropped characters.  If it happens any time you try to send something,
your interrupts may be misconfigured.

> Do I have a bad modem, or is the extra speed I am pushing through the
> port too much on an old 486.

Possibly. Do you have 16550 UARTs (as dmesg says)?

Doug White                               
Internet:  dwhite@resnet.uoregon.edu    | FreeBSD: The Power to Serve
http://gladstone.uoregon.edu/~dwhite    | www.freebsd.org



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