netdev - Re: regression when connecting to ipv6 localhost

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Message-ID: <1350252091.21172.17257.camel@edumazet-glaptop>
Date:	Mon, 15 Oct 2012 00:01:31 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jan Hinnerk Stosch <janhinnerk.stosch@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: regression when connecting to ipv6 localhost

On Sun, 2012-10-14 at 23:54 +0200, Jan Hinnerk Stosch wrote:
> 2012/10/14 Eric Dumazet <eric.dumazet@...il.com>:
> > So ntpd claims to "Listen normally on 4 lo ::1 UDP 123" but lsof doesnt
> > display a socket bound to ::1 port 123
> >
> > So I would say there is a ntpd bug.
> >
> > You could try to strace ntpd from the very beginning of its life, so
> > that we check what it does exactly.
> >
> > service ntp stop
> > strace -o /tmp/STRACE /usr/bin/ntpd -g -u ntp:ntp
> >
> >
> >
> 
> Ok, here is the strace output. I wonder whether this is enough as it
> exits very early - ntp still running though.

Please add -f to follow children

strace -o /tmp/STRACE -f /usr/bin/ntpd -g -u ntp:ntp


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