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Date: Sat, 4 Jul 2009 00:58:54 -0700 (PDT)
From: Alex Dubov <oakad@...oo.com>
To: Andrew Morton <akpm@...ux-foundation.org>,
Gerrit Renker <gerrit@....abdn.ac.uk>
Cc: netdev@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
bugzilla-daemon@...zilla.kernel.org,
bugme-daemon@...zilla.kernel.org, dccp@...r.kernel.org
Subject: Re: [Bugme-new] [Bug 13692] New: dccp_ipv4 has >1 usage count and cannot be removed
--- On Fri, 7/3/09, Gerrit Renker <gerrit@....abdn.ac.uk> wrote:
> Date: Friday, July 3, 2009, 12:41 PM
> | > http://bugzilla.kernel.org/show_bug.cgi?id=13692
> | >
> | > Summary:
> dccp_ipv4 has >1 usage count and cannot be removed
> <snip>
> | >
> | > Upon loading of dccp_ipv4 (either through autoload
> or explicitly, with
> | > modprobe) the usage count of the module is
> immediately set to 2 and the module
> | > can not be unloaded.
> | >
> | > Usage count seems to be correctly
> incremented/decremented during operation, but
> | > never gets lower than 2.
> | >
>
> I believe that the current state provides some protection
> against
> accidental/unwanted removal by unsuspecting users. Arnaldo,
> what
> do you think?
>
Well, I tried "rmmod -f" first thing after noticing this behavior
and got a kernel crash dump immediately.
I'm not near that machine currently, but I'll post the crash dump on
Monday.
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