linux-kernel - Re: pktcdvd oops

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Message-ID: <Pine.LNX.4.64.0711052312410.5445@quad.localdomain>
Date:	Mon, 5 Nov 2007 23:19:25 +0100 (CET)
From:	Peter Osterlund <petero2@...ia.com>
To:	Jens Axboe <jens.axboe@...cle.com>, Tejun Heo <htejun@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Thomas Maier <balagi@...tmail.de>
Subject: Re: pktcdvd oops

On Mon, 5 Nov 2007, Jens Axboe wrote:

> Hi Peter,
>
> You don't seem to have a bugzilla account, so could not reassign to you.
> See http://bugzilla.kernel.org/show_bug.cgi?id=9294

Problem is repeatable on my computer. It dies in __module_get() on this 
line:

 		BUG_ON(module_refcount(module) == 0);

I think this is because commit 7b595756ec1f49e0049a9e01a1298d53a7faaa15, 
which states: "Note that with this change, userland holding a sysfs node 
does not prevent the backing module from being unloaded."

Unfortunately, I don't know how this sysfs stuff is supposed to work, and 
therefore don't know how to fix the problem.

-- 
Peter Osterlund - petero2@...ia.com
http://web.telia.com/~u89404340
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