linux-kernel - Re: [PATCH 0/2] x86/KASAN updates for 4.3

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Message-ID: <20150813172310.GK10280@arm.com>
Date:	Thu, 13 Aug 2015 18:23:10 +0100
From:	Will Deacon <will.deacon@....com>
To:	Andrey Ryabinin <ryabinin.a.a@...il.com>
Cc:	Ingo Molnar <mingo@...nel.org>, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"x86@...nel.org" <x86@...nel.org>,
	Catalin Marinas <Catalin.Marinas@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Arnd Bergmann <arnd@...db.de>,
	Linus Walleij <linus.walleij@...aro.org>,
	David Keitel <dkeitel@...eaurora.org>,
	Alexander Potapenko <glider@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Alexey Klimov <klimov.linux@...il.com>,
	Yury <yury.norov@...il.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: Re: [PATCH 0/2] x86/KASAN updates for 4.3

On Thu, Aug 13, 2015 at 12:24:28PM +0100, Will Deacon wrote:
> On Thu, Aug 13, 2015 at 12:02:26PM +0100, Andrey Ryabinin wrote:
> > 2015-08-13 12:01 GMT+03:00 Will Deacon <will.deacon@....com>:
> > > Yes please, works for me! If we're targetting 4.3, then please can you base
> > > on 4.2-rc4, as that's what our current arm64 queue is using?
> > >
> > 
> > Does this mean that we are targeting arm64 part for 4.3 too?
> 
> It depends on how well it merges with our current queue and whether it
> holds up to regression testing. The patches have been reviewed, so I'm
> comfortable with the content, but we're not at a stage where we can debug
> and fix any failures that might crop up from the merge.

Scratch that :(

I tried this out under EFI and it dies horribly in the stub code because
we're missing at least one KASAN_SANITIZE_ Makefile entry.

So I think this needs longer to stew before hitting mainline. By all means
get the x86 dependencies in for 4.3, but the arm64 port can probably use
another cycle to iron out the bugs.

Cheers,

Will
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