Subject: Re: [PATCH] IB/IPoIB: Check the headroom size

From: Doug Ledford <[email-masked]>
Date: Wed, 26 Apr 2017 09:50:38 -0400

On Wed, 2017-04-26 at 09:48 -0400, Doug Ledford wrote:
> On Wed, 2017-04-26 at 21:33 +0800, Honggang LI wrote:
> > 
> > Yes, it is during the process of removing the final slave. The
> > reproducer looks like this:
> > 
> > ping remote_ip_over_bonding_interface &
> > while 1; do
> > 	ifdown bond0
> > 	ifup   bond0
> > done

BTW, rerunning your test as:

ping remote_ip_over_bonding_interface &
while 1; do
    echo -n "Downing interface..."
    ifdown bond0
    echo "done."
    sleep 1
    echo -n "Bringing interface up..."
    ifup bond0
    echo "done."
done

will allow you to more precisely identify whether the failure is during
the down or the up of the interface.

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Doug Ledford <[email-masked]>
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