[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <alpine.DEB.1.10.0906111118350.14020@gentwo.org>
Date: Thu, 11 Jun 2009 11:20:50 -0400 (EDT)
From: Christoph Lameter <cl@...ux-foundation.org>
To: Pekka Enberg <penberg@...helsinki.fi>
cc: linux-kernel@...r.kernel.org, mel@....ul.ie,
Larry.Finger@...inger.net
Subject: Re: [PATCH 2/2] SLUB: Disable debugging if it increases the minimum
page order
On Thu, 11 Jun 2009, Pekka Enberg wrote:
> I think my patch is the simplest solution here: it turns off debugging
> for those caches where the metadata bumps up the minimum allocation
> order and I suspect that we disable cache only for 4096 in practice.
There could be other slab caches that would randomly be affected by this.
I ran a couple of times into situations where I had to hack slab to do
debugging of exempted slabs.
> Also note that when we switch back to more aggressive page allocator
> pass-through, we lose SLUB debugging support.
Debugging options can have side effects. Slab debugging is not something
suitable by default for production environments.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists