linux-kernel - Re: frequent slab corruption (since a long time)

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Message-Id: <200608020635.00991.ak@suse.de>
Date:	Wed, 2 Aug 2006 06:35:00 +0200
From:	Andi Kleen <ak@...e.de>
To:	Dave Jones <davej@...hat.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: frequent slab corruption (since a long time)

On Wednesday 02 August 2006 06:22, Dave Jones wrote:

> Problem with that approach is that DEBUG_PAGEALLOC makes things
> so damned slow that it's pretty much unusable, and this bug
> doesn't seem to want to repeat itself to order, so I doubt
> many people would put up with the slowdown long enough to chase it down.

Really?  It shouldn't be that much slower in theory. Do you
have numbers?

If it's a big problem it could probably be made faster by batching
the TLB flushes more.

-Andi
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