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Date:      Mon, 2 Nov 1998 14:05:00 -0000 
From:      Paul Richards <paul@originative.co.uk>
To:        "'Luigi Rizzo'" <luigi@labinfo.iet.unipi.it>
Cc:        cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject:   RE: cvs commit: src/sys/i386/isa if_lnc.c
Message-ID:  <E40CBF0361C7D111914000C0F0303D108793@OCTOPUS>

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> -----Original Message-----
> From: Luigi Rizzo [mailto:luigi@labinfo.iet.unipi.it]
> Sent: Friday, October 30, 1998 4:19 PM
> To: paul@originative.co.uk
> Cc: luigi@FreeBSD.ORG; cvs-committers@FreeBSD.ORG; cvs-all@FreeBSD.ORG
> Subject: Re: cvs commit: src/sys/i386/isa if_lnc.c
> 
> 
> > Well this is 50% ok, you're right about the spelling mistake but
> > disabling the error message is a bad thing.
> > 
> > The error messages you've disabled signify packet 
> corruption resulting
> > in the packet being dropped (CRC and Framing errors), you'd 
> really want
> > to know about that sort of thing happening. This is hardly 
> verbose error
> > reporting!
> 
> yep, sorry :( i realized that i also disabled counters only after
> hitting the return key.
> 
> > Please reverse that part of the commit. If you're seeing so many of
> > these errors that they're annoying you then you should find 
> the cause,
> > not disable the error message.
> 
> actually: do you know if the LANCE is programmed to pass up runt
> packets etc. ? Because with a different (ne2000) card on the same
> network i do see frequent short pkts (4..8 bytes) presumably result
> of collisions, when using the card in promisc mode (bridge). I
> thought this was the cause of the same problem with the 'lnc'
> driver.

The Lance will not pass up runt packets, it drops them at the hardware
level. The driver has no knowledge of them at all. I think the PCnet
family counts runt packets in the receive collision counter register but
the current driver doesn't use this PCnet specific register.

Paul Richards Ph.D.
Originative Solutions Ltd

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