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Date: Mon, 7 Feb 2005 11:12:44 -0800
From: Kris Kennaway <kris@obsecurity.org>
To: "Jos? M. Fandi?o" <freebsd4@fadesa.es>
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cc: freebsd-stable@freebsd.org
Subject: Re: 50% of packets lost only on local interfaces
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On Mon, Feb 07, 2005 at 11:30:43AM +0100, Jos? M. Fandi?o wrote:
> Kris Kennaway wrote:
> >=20
> > On Mon, Feb 07, 2005 at 11:15:52AM +0100, Jos? M. Fandi?o wrote:
> > > "Jos? M. Fandi?o" wrote:
> > > >
> > > > Chris wrote:
> > > > >
> > > > > Have tested on 3 boxes.
> > > >
> > > > yes, it's the intended operation and If I don't see it I don't
> > > > believe it but it happens. I ever thought it would be possible.
> > >
> > > Finally, I found the culprit:
> > >
> > > CFLAGS=3D""     \  100% of the transmited traffic is received
> > > COPTFLAGS=3D""  /
> > >
> > > CFLAGS=3D -pipe     \  50% of the transmited traffic is received
> > > COPTFLAGS=3D -pipe  /
> >=20
> > That would be exceedingly strange, because the above two options are
> > supposed to produce *no differences at all* with the code generation.
> >
> > I'd believe that -O and no -O could behave differently, although I
> > don't know why you'd want to compile without -O.

Actually, the only way I can make sense of this is if CFLAGS=3D"" uses
the default CFLAGS, which is -O -pipe.

Kris
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