netdev - Re: Top 10 kernel oopses for the week ending January 5th, 2008

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Message-ID: <20080106035001.GA10129@one.firstfloor.org>
Date:	Sun, 6 Jan 2008 04:50:01 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Arjan van de Ven <arjan@...ux.intel.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	NetDev <netdev@...r.kernel.org>
Subject: Re: Top 10 kernel oopses for the week ending January 5th, 2008

On Sat, Jan 05, 2008 at 07:31:29PM -0800, Arjan van de Ven wrote:
> Andi Kleen wrote:
> >Arjan van de Ven <arjan@...ux.intel.com> writes:
> >>Rank 4: remove_proc_entry
> >>	Was also ranked 4th last week
> >>	Only in tainted oopses
> >>	Reported 3 times (12 total reports)
> >>	More info: 
> >>	http://www.kerneloops.org/search.php?search=remove_proc_entry
> >
> >Likely a broken module_exit() function that corrupts the list. To track
> >these down it might be useful to keep a list of recently unloaded modules
> >and dump these too in the oops module list with a special flag.
> >
> I suspect that simply printing the currently unloading module will catch 
> 90%+ already;

There are a few cases where the corruption is only visible next time
someone accesses the list. So a small ring buffer might make sense.

-Andi

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