linux-kernel - Re: [PATCH] regression: vmalloc easily fail.

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Message-ID: <21a166410810281422r6638568au68af4e1367a04b87@mail.gmail.com>
Date:	Tue, 28 Oct 2008 19:22:45 -0200
From:	"Matias Zabaljauregui" <zabaljauregui@...il.com>
To:	"Glauber Costa" <glommer@...hat.com>
Cc:	"Avi Kivity" <avi@...hat.com>, linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org, aliguori@...emonkey.ws, npiggin@...e.de,
	"Jeremy Fitzhardinge" <jeremy@...p.org>,
	"Krzysztof Helt" <krzysztof.h1@...zta.fm>
Subject: Re: [PATCH] regression: vmalloc easily fail.

hello,

>> I'm guessing that the missing comment explains that this is intentional,
>> to trap buffer overflows?

yes, IIRC the pages between vmalloc areas are there for safety reasons.
(like the interval inserted before the first area, defined by VMALLOC_OFFSET)

regards
Matias
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