linux-kernel - Re: [PATCH prototype] [0/8] Predictive bitmaps for ELF executables

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Message-Id: <1206180991.2438.43.camel@entropy>
Date:	Sat, 22 Mar 2008 03:16:31 -0700
From:	Nicholas Miell <nmiell@...cast.net>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Ulrich Drepper <drepper@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH prototype] [0/8] Predictive bitmaps for ELF executables


On Sat, 2008-03-22 at 10:10 +0100, Andi Kleen wrote:
> > Why not stick the bitmap in an xattr?
> 
> xattrs are too small for potentially large binaries

*sigh* this is probably true

> and a mess to manage (a lot of tools don't know about them)

At this point in time, all tools that don't support xattrs are
defective, but this is still probably true.

I just have an instinctive aversion towards the kernel mucking around in
ELF objects -- for one thing, you're going to have to blacklist
cryptographically signed binaries.


-- 
Nicholas Miell <nmiell@...cast.net>

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