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Date: Tue, 24 Sep 2013 14:36:40 +0800
From: zhuyj <zyjzyj2000@gmail.com>
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To: Hong Zhiguo <honkiko@gmail.com>
CC: Steven Rostedt <rostedt@goodmis.org>, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org, "David S. Miller" <davem@davemloft.net>
Subject: Re: [ 163/171 ] ipv6: fix bad free of addrconf_init_net
References: <20130411202503.783159048@goodmis.org> <20130411202612.980288644@goodmis.org>
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On 04/12/2013 04:27 AM, Steven Rostedt wrote:
On linux with stable kernel v3.4.39, when this patch (ipv6: fix bad free 
of addrconf_init_net) is applied. Then I run the following commands:

1. the default value of ipv6 forwarding is 0

2. we change it to 1 firstly via:
# vi /etc/sysctl.conf
Uncomment: net.ipv6.conf.all.forwarding=1
#sysctl �p
Then we can verify via
#sysctl �a | grep forwarding

3, then we create a new namespace via:
# ip netns add fib_100
# ip netns exec fib_100 sysctl -a | grep forwarding

We�ll see in this new name space, the value of ipv6 forwarding will be 
set to �1� in v3.4.38, but in v3.4.39, the value is still be �0�

without this patch (ipv6: fix bad free of addrconf_init_net), the value 
of ipv6 forwarding will be set to �1�.

Would you like to tell me which one (v4.3.39 and v4.3.38) is correct?

Best Regards!
Zhu Yanjun