linux-kernel - Re: [PATCH] Make LIST

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Message-ID: <4832BABA.9040809@firstfloor.org>
Date:	Tue, 20 May 2008 13:49:14 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Avi Kivity <avi@...ranet.com>
CC:	Andrew Morton <akpm@...l.org>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Make LIST_POISON less deadly

> Makes sense.  I'll send out v3.
> 
> Is there a similar range on i386?

Don't think so. Address space is too precious here.

What you could probably do is to unmap one fixed page in some range
that is always split to 4K pages anyways and use that. Perhaps somewhere
in the 640k-1MB range. But if you're unlucky this might require a
variable, not a constant.

-Andi
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