From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: Problems with /proc/net/tcp6  - possible bug - ipv6
Date: Sat, 22 Jan 2011 22:40:44 +0100
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Cc: linux-kernel@vger.kernel.org, netdev <netdev@vger.kernel.org>,
	David Miller <davem@davemloft.net>
To: PK <runningdoglackey@yahoo.com>
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Le samedi 22 janvier 2011 =C3=A0 22:20 +0100, Eric Dumazet a =C3=A9crit=
 :
> Le samedi 22 janvier 2011 =C3=A0 11:42 -0800, PK a =C3=A9crit :
> > Eric Dumazet wrote:
> > >=20
> > > I had some incidents, after hours of testing...
> > >
> > > After following patch, I could not reproduce it.
> >=20
> >=20
> > Looks like that patch solved the /proc/net/tcp6 problem.  The causa=
l commit was=20
> > the one you identified... confirmed with bisect.
> >=20
> > These warnings show up when I run the script (or I presume any tcp6=
 connection=20
> > flooder) with /proc/sys/net/tcp/ipv4/tcp_tw_recycle enabled.  There=
's textual=20
> > corruption of the traces a lot of the time.  Here's a sample trace =
that doesn't=20
> > appear to be corrupt.  All the warnings I've seen are from route.c:=
209, and I=20
> > don't see how that would cause memory corruption.
>=20
> Thats a different isse, already reported, under investigation.
>=20
> David did some changes recently
>=20
> http://comments.gmane.org/gmane.linux.network/179874
>=20
>=20
>=20

In my testings, I even have crashes in cleanup_once() if I
enable /proc/sys/net/ipv4/tcp_tw_recycle=20