linux-kernel - Re: 2.6.24-rc6-mm1 - oddness with IPv4/v6 mapped sockets hanging...

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Message-ID: <31130.1200333948@turing-police.cc.vt.edu>
Date:	Mon, 14 Jan 2008 13:05:48 -0500
From:	Valdis.Kletnieks@...edu
To:	Paul Moore <paul.moore@...com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: 2.6.24-rc6-mm1 - oddness with IPv4/v6 mapped sockets hanging...

On Mon, 14 Jan 2008 11:36:40 EST, Paul Moore said:

> Are you still only seeing these problems on loopback?  I can't help but wonder 
> if this is the skb_clone() problem where it wasn't copying skb->iif causing 
> SELinux to silently drop the packets.

Yes, I've only spotted it on loopback.  The odd part is that I had reverted the
one commit 9c6ad8f6895db7a517c04c2147cb5e7ffb83a315 "Convert the netif code to
use ifindex values" - so either I managed to get the revert terribly wrong,
or there's something else odd going on.  The first time around, I was seeing
hangs during a TCP 3-packet handshake - this time data flows for some number
of packets before hanging.

I'm pulling  git://git.infradead.org/users/pcmoore/lblnet-2.6_testing at the
moment, and seeing if there's already a fix in there for this.

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