linux-kernel - Re: [patch 0/5] Support for sanitization flag in low-level page allocator

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Message-ID: <4A1EDE77.32340.EF6193F@pageexec.freemail.hu>
Date:	Thu, 28 May 2009 20:56:55 +0200
From:	pageexec@...email.hu
To:	Alan Cox <alan@...rguk.ukuu.org.uk>, Ingo Molnar <mingo@...e.hu>
CC:	Rik van Riel <riel@...hat.com>,
	"Larry H." <research@...reption.com>, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...l.org>, linux-mm@...ck.org,
	Ingo Molnar <mingo@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [patch 0/5] Support for sanitization flag in low-level page allocator

On 28 May 2009 at 20:48, Alan Cox , Ingo Molnar wrote:

> last year while developing/debugging something else i also ran some kernel
> compilation tests and managed to dig out this one for you ('all' refers to
> all of PaX):
> 
> ------------------------------------------------------------------------------------------
> make -j4 2.6.24-rc7-i386-pax compiling 2.6.24-rc7-i386-pax (all with SANITIZE, no PARAVIRT)

addendum: i just checked and that version didn't omit GPF_ZERO handling therefore
the current version should have better performance, at least on this kind of workload
where lots of anonymous userland pages are instantiated.

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