linux-kernel - Re: [PATCH v10 03/20] x86/stackvalidate: Compile-time stack validation

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Message-Id: <20150815002354.7fb2f21e.akpm@linux-foundation.org>
Date:	Sat, 15 Aug 2015 00:23:54 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Josh Poimboeuf <jpoimboe@...hat.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org, Michal Marek <mmarek@...e.cz>,
	Peter Zijlstra <peterz@...radead.org>,
	Andy Lutomirski <luto@...nel.org>,
	Borislav Petkov <bp@...en8.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andi Kleen <andi@...stfloor.org>,
	Pedro Alves <palves@...hat.com>,
	Namhyung Kim <namhyung@...il.com>,
	Bernd Petrovitsch <bernd@...rovitsch.priv.at>,
	"Chris J Arges" <chris.j.arges@...onical.com>,
	live-patching@...r.kernel.org
Subject: Re: [PATCH v10 03/20] x86/stackvalidate: Compile-time stack
 validation

On Thu, 13 Aug 2015 22:10:24 -0500 Josh Poimboeuf <jpoimboe@...hat.com> wrote:

> This adds a CONFIG_STACK_VALIDATION option which enables a host tool
> named stackvalidate which runs at compile time.

It would be useful to

- show example output for a typical error site

- describe the consequences of that error (ie: why should we fix
  these things?)

- describe what needs to be done to repair these sites.


IOW, what do we gain from merging all this stuff?
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