netdev - Re: net-next: warnings from sysctl_net

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Message-ID: <AANLkTi=mhj3Ftq8hFPPzZYJvp8mgOeV89oX_vHZVxwzY@mail.gmail.com>
Date:	Mon, 28 Feb 2011 00:37:09 +0200
From:	Lucian Adrian Grijincu <lucian.grijincu@...il.com>
To:	Stephen Hemminger <shemminger@...tta.com>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: net-next: warnings from sysctl_net_exit

Stephen Hemminger <shemminger <at> vyatta.com> writes:
> [26207.669740]  [<ffffffff814154ad>] ? sysctl_net_exit+0x2a/0x2c
> [26207.669742]  [<ffffffff8136144e>] ? ops_exit_list+0x2a/0x5b
> [26207.669745]  [<ffffffff813618f0>] ? cleanup_net+0xfa/0x19a

David: it looks like someone registered a /proc/sys table with
register_net_sysctl_table but forgot to remove it (or someone wrote
something in the 'struct net*' and buffer overflowed into
&net->sysctls.list).

Stephen, can you post a `ls -R /proc/sys/net/` from before the dmesg
message appeared?

The check is triggered at network namespace deletion, so a moment
before deleting the netns should be fine.

-- 
 .
..: Lucian
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