linux-kernel - Re: [PATCH v7 3.2-rc2 5/30] uprobes: copy of the original instruction.

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Message-ID: <1322073616.14799.96.camel@twins>
Date:	Wed, 23 Nov 2011 19:40:16 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux-mm <linux-mm@...ck.org>, Ingo Molnar <mingo@...e.hu>,
	Andi Kleen <andi@...stfloor.org>,
	Christoph Hellwig <hch@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Roland McGrath <roland@...k.frob.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Anton Arapov <anton@...hat.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Jim Keniston <jkenisto@...ux.vnet.ibm.com>,
	Stephen Wilson <wilsons@...rt.ca>
Subject: Re: [PATCH v7 3.2-rc2 5/30] uprobes: copy of the original
 instruction.

On Fri, 2011-11-18 at 16:37 +0530, Srikar Dronamraju wrote:
> +               /* TODO : Analysis and verification of instruction */

As in refuse to set a breakpoint on an instruction we can't deal with?

Do we care? The worst case we'll crash the program, but if we're allowed
setting uprobes we already have enough privileges to do that anyway,
right?


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