netdev - Re: [net-2.6 PATCH] ipv6: fix missing in6_ifa

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Message-ID: <1290008280.2687.49.camel@edumazet-laptop>
Date:	Wed, 17 Nov 2010 16:38:00 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Anders Franzen <Anders.Franzen@...csson.com>
Cc:	John Fastabend <john.r.fastabend@...el.com>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"shemminger@...tta.com" <shemminger@...tta.com>
Subject: Re: [net-2.6 PATCH] ipv6: fix missing in6_ifa_put in addrconf

Le mercredi 17 novembre 2010 à 16:20 +0100, Anders Franzen a écrit :
> Hi, I was hunting for a bug that a colleague discovered.
> When we exit a network namespace, the ns was hanging with dangling
> references to dev lo.
> 
> When I saw the patch below, I fetched the latest net-next from Daves
> repository.
> 
> And the problem is gone. Was this really the fix, since it seems to me
> that this is a fix to a recently added patch (dont remove address ....).
> 
> Did you fix anything else in the Ipv6 addrconf w.r.g dev_hold/dev_put?
> 
> netns still have problems with slab corruption during exit though:
> 
>  Nov 17 15:00:20 p04 user.err kernel: Slab corruption: size-4096
> start=ffff88000612a000, len=4096
> Nov 17 15:00:20 p04 user.err kernel: 020: 6b 6b 6b 6b 6b 6b
> Nov 17 15:00:20 p04 user.info kernel:  6b 6b 00 00 00 00 00 00 00
> Nov 17 15:00:20 p04 user.info kernel:  00
> 
> BR
>   Anders
> 
> 

Hi Anders

Several patches of interest :


commit 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46
(ipv6: fix missing in6_ifa_put in addrconf)

commit 332dd96f7ac15e937088fe11f15cfe0210e8edd1
(net/dst: dst_dev_event() called after other notifiers)

commit ef885afbf8a37689afc1d9d545e2f3e7a8276c17
(net: use rcu_barrier() in rollback_registered_many)


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