linux-kernel - Re: [PATCH v6 00/11] Kernel address sanitizer

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Date:	Fri, 21 Nov 2014 19:06:49 +0300
From:	Andrey Ryabinin <a.ryabinin@...sung.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Dmitry Vyukov <dvyukov@...gle.com>, Ingo Molnar <mingo@...nel.org>,
	Andrey Ryabinin <ryabinin.a.a@...il.com>,
	Konstantin Serebryany <kcc@...gle.com>,
	Dmitry Chernenkov <dmitryc@...gle.com>,
	Andrey Konovalov <adech.fo@...il.com>,
	Yuri Gribov <tetra2005@...il.com>,
	Konstantin Khlebnikov <koct9i@...il.com>,
	Sasha Levin <sasha.levin@...cle.com>,
	Michal Marek <mmarek@...e.cz>, Ingo Molnar <mingo@...hat.com>,
	Christoph Lameter <cl@...ux.com>,
	Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Dave Hansen <dave.hansen@...el.com>,
	Andi Kleen <andi@...stfloor.org>,
	Vegard Nossum <vegard.nossum@...il.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Randy Dunlap <rdunlap@...radead.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Dave Jones <davej@...hat.com>,
	Jonathan Corbet <corbet@....net>,
	Joe Perches <joe@...ches.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH v6 00/11] Kernel address sanitizer - runtime memory
 debugger.

On 11/21/2014 02:14 AM, Thomas Gleixner wrote:
> On Thu, 20 Nov 2014, Andrew Morton wrote:
> 
>> On Thu, 20 Nov 2014 20:32:30 +0400 Dmitry Vyukov <dvyukov@...gle.com> wrote:
>>
>>> Let me provide some background first.
>>
>> Well that was useful.  Andrey, please slurp Dmitry's info into the 0/n
>> changelog?
> 
> And into Documentation/UBSan or whatever the favourite place is. 0/n
> lengthy explanations have a tendecy to be hard to retrieve.
> 

I would rather put this into 1/n patch changelog.
IMO Documentation should only describe how to use this tool and how it works.

And UBSan != KASan. UBSan for detecting undefined behavior,
KASan for out of bounds and use after frees.

> Thanks,
> 
> 	tglx
> 
> 
> 

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