From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Brownell <david-b@pacbell.net>
Subject: Re: [patch 2.6.24-git] net/enc28j60: oops fix, low power mode
Date: Sun, 10 Feb 2008 09:54:18 -0800
Message-ID: <200802100954.18225.david-b@pacbell.net>
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To: Claudio Lanconelli <lanconelli.claudio@eptar.com>
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On Thursday 07 February 2008, Claudio Lanconelli wrote:
> David Brownell wrote:
> > How long did that take?  I did about four dozen
> >
> > 	ifconfig eth1 up
> > 	sleep 3
> > 	ifconfig eth1 down
> >
> > cycles ... it worked fine.  The "sleep" was to let the link
> > negotiation complete.
> >
> >   
> After a couple of :
> 
> ifconfig eth0 down
> (wait just 1 second)
> ifconfig eth0 up
> 
> the network is frozen.
> 
> If I do another
> ifconfig eth0 down
> (wait just 1 second)
> ifconfig eth0 up
> 
> restarts.
> It's random, no rule.

I write a shell loop to do that, and added a "ping -c2" too.
If that was done before the "sleep 1" no packets flowed.
Afterwards, no problem -- ever. 

(And outside the loop, "ethool -s eth1 duplex full".)