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From: Ard van Breemen <ard@telegraafnet.nl>
Date: Fri, 18 Jan 2002 10:33:03 +0100
To: "Peter C. Norton" <spacey@lenin.nu>
Cc: linux-kernel@vger.kernel.org, bonding-devel@lists.sourceforge.net
Subject: Re: [Bonding-devel] Re: Weird bonding driver and tulip quad-card interaction on 2.4.17
Message-ID: <20020118093302.GA6012@telegraafnet.nl>
In-Reply-To: <20020117191528.GJ31418@lenin.nu> <20020117222036.GT31418@lenin.nu>
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On Thu, Jan 17, 2002 at 02:20:36PM -0800, Peter C. Norton wrote:
> As a follow-up, Chad T. on the bonding list pointed out to me that there is
> no Media flag normally output by ifconfig.  This would lead me to believe
> that somehow the bonding driver is perhaps overwriting the MAC address in my
> case.  How can this have happened?  Why is it only on this system?  
It *is* printed:
>From lib/interface.c (net-tools 1.60):

    if (hw->print != NULL && (! (hw_null_address(hw, ptr->hwaddr) &&
                  hw->suppress_null_addr)))
    printf(_("HWaddr %s  "), hw->print(ptr->hwaddr));
#ifdef IFF_PORTSEL
    if (ptr->flags & IFF_PORTSEL) {
    printf(_("Media:%s"), if_port_text[ptr->map.port][0]);
    if (ptr->flags & IFF_AUTOMEDIA)
        printf(_("(auto)"));
    }
#endif
    printf("\n");

So, something has set IFF_PORTSEL, and ptr->map.port is not within bounds.
Or you have a kernel which does not support IFF_PORTSEL, but something
else is using ptr->flags with different values...

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