linux-kernel - Re: [BUG] 2.6.38-rc2: Circular Locking Dependency

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Date:	Tue, 08 Feb 2011 08:51:22 +0100
From:	Knut Petersen <Knut_Petersen@...nline.de>
To:	Paul Mackerras <paulus@...ba.org>
CC:	David Miller <davem@...emloft.net>, linux-kernel@...r.kernel.org,
	mostrows@...thlink.net, linux-ppp@...r.kernel.org,
	xiaosuo@...il.com, eric.dumazet@...il.com
Subject: Re: [BUG] 2.6.38-rc2: Circular Locking Dependency

Hi everybody!

I bisected the problem with the following result:

aa9421041128abb4d269ee1dc502ff65fb3b7d69 is the first bad commit
commit aa9421041128abb4d269ee1dc502ff65fb3b7d69
Author: Changli Gao <xiaosuo@...il.com>
Date:   Sat Dec 4 02:31:41 2010 +0000

    net: init ingress queue

    The dev field of ingress queue is forgot to initialized, then NULL
    pointer dereference happens in qdisc_alloc().

    Move inits of tx queues to netif_alloc_netdev_queues().

    Signed-off-by: Changli Gao <xiaosuo@...il.com>
    Acked-by: Eric Dumazet <eric.dumazet@...il.com>
    Signed-off-by: David S. Miller <davem@...emloft.net>

:040000 040000 dcbb6ab41c4308cba1bc6823d200dcf92aa402d8
b5e190ec681d26ffe62d1d0214c4ef77b8034189 M      net

cu,
 Knut
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