From: Eric Dumazet <eric.dumazet@gmail.com>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Luca Tettamanti <kronos.it@gmail.com>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [2.6.33-rc5] kernel BUG at include/net/netns/generic.h:41!
Date: Fri, 29 Jan 2010 16:22:29 +0100 [thread overview]
Message-ID: <1264778549.3184.28.camel@edumazet-laptop> (raw)
In-Reply-To: <b6fcc0a1001290217l4edb0a0btbafa0c26b6f14ad5@mail.gmail.com>
Le vendredi 29 janvier 2010 à 12:17 +0200, Alexey Dobriyan a écrit :
> On Fri, Jan 29, 2010 at 11:48 AM, Luca Tettamanti <kronos.it@gmail.com> wrote:
> > with recent kernels I'm seeing this BUG - triggered by racoon - at boot:
> >
> > NET: Registered protocol family 15
> > ------------[ cut here ]------------
> > kernel BUG at /home/kronos/src/linux-2.6.git/include/net/netns/generic.h:43!
> > invalid opcode: 0000 [#1] PREEMPT SMP
> > last sysfs file: /sys/kernel/uevent_seqnum
> > CPU 1
> > Pid: 1941, comm: racoon Not tainted 2.6.33-rc5-00271-gbe8cde8-dirty #238 F3Sa /F3Sa
> > RIP: 0010:[<ffffffffa03035be>] [<ffffffffa03035be>] pfkey_create+0x36/0x18b [af_key]
>
> Does it triggers after succesfull boot if you do
>
> rmmod af_key; modprobe af_key
>
> a couple of times?
>
> Post .config, just in case.
I am looking at ipsec_pfkey_init()
We call sock_register(&pfkey_family_ops) before pfkey_net_id being
initialized (by the call to register_pernet_subsys(&pfkey_net_ops);
As soon as sock_register(&pfkey_family_ops) is done, another thread can
open a socket and call pfkey_create() -> crash
We should change order of initializations somehow
next prev parent reply other threads:[~2010-01-29 15:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-29 9:48 [2.6.33-rc5] kernel BUG at include/net/netns/generic.h:41! Luca Tettamanti
2010-01-29 10:17 ` Alexey Dobriyan
2010-01-29 15:22 ` Eric Dumazet [this message]
2010-01-29 16:33 ` [PATCH] xfrm: Change initializations order in ipsec_pfkey_init() Eric Dumazet
2010-01-30 12:53 ` [PATCH] af_key: fix netns ops ordering on module load/unload Alexey Dobriyan
2010-02-01 13:50 ` Luca Tettamanti
2010-02-01 13:56 ` Eric Dumazet
2010-02-04 2:11 ` David Miller
2010-01-30 13:23 ` [2.6.33-rc5] kernel BUG at include/net/netns/generic.h:41! Luca Tettamanti
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