From: Pablo Neira <pablo@eurodev.net>
To: Krzysztof Oledzki <olenf@ans.pl>
Cc: netfilter-devel@lists.netfilter.org
Subject: Re: nfnetlink/ctnetlink - OOPS&panic
Date: Tue, 19 Apr 2005 14:04:06 +0200 [thread overview]
Message-ID: <4264F3B6.9010408@eurodev.net> (raw)
In-Reply-To: <Pine.LNX.4.62.0504191220390.27543@bizon.gios.gov.pl>
Krzysztof Oledzki wrote:
> Hello,
>
> I have just compiled 2.6.11.7 kernel with nfnetlink/ctnetlink support
> (from pom-ng-20050418). Unfortunately, during system startup, kernel
> panics:
>
> Unable to handle kernel NULL pointer dereference at virtual address
> 000000b3
> printing eip:
> *pde = 00000000
> Oops: 0000 [#1]
> PREEMPT
> Modules linked in: bonding
You've catch a race condition.
Since you've compiled nfnetlink and ctnetlink in kernel, not as module,
it seems that ctnetlink registers the subsystem via
nfnetlink_subsys_register before nfnetlink has created the netlink
socket. Then you've received an event that has been sent to a
non-existing netlink socket. I can cook an oops with that.
I'll fix it as soon as I get some spare time.
--
Pablo
next prev parent reply other threads:[~2005-04-19 12:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-19 10:31 nfnetlink/ctnetlink - OOPS&panic Krzysztof Oledzki
2005-04-19 12:04 ` Pablo Neira [this message]
2005-04-19 13:39 ` Krzysztof Oledzki
2005-04-19 14:11 ` Amin Azez
2005-04-19 15:04 ` Krzysztof Oledzki
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