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Message-ID: <52CDB0CF.5060904@oracle.com>
Date:	Wed, 08 Jan 2014 15:10:55 -0500
From:	Sasha Levin <sasha.levin@...cle.com>
To:	Andi Kleen <andi@...stfloor.org>
CC:	peterz@...radead.org, mingo@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] lockdep: increase static allocations

On 01/08/2014 02:51 PM, Andi Kleen wrote:
> Sasha Levin <sasha.levin@...cle.com> writes:
>
>> Fuzzing a recent kernel with a large configuration hits the static
>> allocation limits and disables lockdep.
>
> Doesn't that use a lot more memory?  I thought lockdep preallocates.
>
> Doubling may be too aggressive.

The patch adds about 4MB of memory usage, I didn't think it's too much for something
that is only enabled during debugging.

If this is an issue, can I suggest making these values configurable in the .config
and just let users pick whatever they want?


Thanks,
Sasha

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