netdev - inet6_dump_fib lock held when returning to user space

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Date:	Thu, 19 Jan 2012 11:48:51 +0100
From:	Hans Schillstrom <hans.schillstrom@...csson.com>
To:	Eric Dumazet <eric.dumazet@...il.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: inet6_dump_fib  lock held when returning to user space

Hello
Have this one been seen before ?
It happens during a container start i.e. in a netns,

[   19.232941] ================================================
[   19.268785] [ BUG: lock held when returning to user space! ]
[   19.270146] 3.2.0+ #14 Tainted: G        W   
[   19.271217] ------------------------------------------------
[   19.272968] nsm/1042 is leaving the kernel with locks still held!
[   19.274603] 1 lock held by nsm/1042:
[   19.275524]  #0:  (rcu_read_lock){.+.+..}, at: [<ffffffff8136a9b2>] inet6_dump_fib+0xbd/0x34a

-- 
Regards
Hans Schillstrom <hans.schillstrom@...csson.com>
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