Re: 50% of packets lost only on local interfaces

From: Kris Kennaway (kris_at_obsecurity.org)
Date: 02/07/05

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    Date: Mon, 7 Feb 2005 11:12:44 -0800
To: "Jos? M. Fandi?o" <freebsd4@fadesa.es>

    On Mon, Feb 07, 2005 at 11:30:43AM +0100, Jos? M. Fandi?o wrote:
    > Kris Kennaway wrote:
    > >
    > > 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="" \ 100% of the transmited traffic is received
    > > > COPTFLAGS="" /
    > > >
    > > > CFLAGS= -pipe \ 50% of the transmited traffic is received
    > > > COPTFLAGS= -pipe /
    > >
    > > 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="" uses
    the default CFLAGS, which is -O -pipe.

    Kris

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