From: Eric Dumazet <eric.dumazet@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: ben@decadent.org.uk, netdev@vger.kernel.org,
beatrice.barbe@gmail.com, 599816@bugs.debian.org
Subject: Re: Nested GRE locking bug
Date: Tue, 19 Oct 2010 11:02:36 +0200 [thread overview]
Message-ID: <1287478956.2676.13.camel@edumazet-laptop> (raw)
In-Reply-To: <20101019.015303.104063240.davem@davemloft.net>
Le mardi 19 octobre 2010 à 01:53 -0700, David Miller a écrit :
> From: Eric Dumazet <eric.dumazet@gmail.com>
> Date: Thu, 14 Oct 2010 06:11:59 +0200
>
> > net-next-2.6 contains a fix for this, adding the perc_cpu
> > xmit_recursion limit. We might push it to net-2.6
>
> We need to think a bit more about this.
>
> We are essentially now saying that one can only configure
> tunnels 3 levels deep, and no more.
>
> I can guarentee you someone out there uses at least 4,
> perhaps more.
>
> And those people will be broken by the new limit.
>
> So putting this into net-2.6 with such a low limit will
> be quite dangerous.
Well limit is actually 4, but I get your point ;)
next prev parent reply other threads:[~2010-10-19 9:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-14 4:00 Nested GRE locking bug Ben Hutchings
2010-10-14 4:11 ` Eric Dumazet
2010-10-19 8:53 ` David Miller
2010-10-19 9:02 ` Eric Dumazet [this message]
2010-10-25 19:53 ` David Miller
2010-10-25 20:08 ` Eric Dumazet
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