From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: [PATCH prototype] [0/8] Predictive bitmaps for ELF executables From: Nicholas Miell In-Reply-To: <20080322091001.GA7264@one.firstfloor.org> References: <20080318104437.966c10ec.akpm@linux-foundation.org> <20080319083228.GM11966@one.firstfloor.org> <20080319020440.80379d50.akpm@linux-foundation.org> <20080320090005.GA25734@one.firstfloor.org> <20080321172644.GG2346@one.firstfloor.org> <20080322071755.GP2346@one.firstfloor.org> <1206170695.2438.39.camel@entropy> <20080322091001.GA7264@one.firstfloor.org> Content-Type: text/plain Date: Sat, 22 Mar 2008 03:16:31 -0700 Message-Id: <1206180991.2438.43.camel@entropy> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Andi Kleen Cc: Ulrich Drepper , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org