From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with SMTP id 406F88D003A for ; Mon, 14 Mar 2011 14:21:41 -0400 (EDT) Subject: Re: [PATCH v2 2.6.38-rc8-tip 3/20] 3: uprobes: Breakground page replacement. From: Steven Rostedt In-Reply-To: <20110314172439.GO24254@linux.vnet.ibm.com> References: <20110314133403.27435.7901.sendpatchset@localhost6.localdomain6> <20110314133433.27435.49566.sendpatchset@localhost6.localdomain6> <1300117137.9910.110.camel@gandalf.stny.rr.com> <20110314172439.GO24254@linux.vnet.ibm.com> Content-Type: text/plain; charset="ISO-8859-15" Date: Mon, 14 Mar 2011 14:21:35 -0400 Message-ID: <1300126895.9910.127.camel@gandalf.stny.rr.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Srikar Dronamraju Cc: Peter Zijlstra , Ingo Molnar , Linux-mm , Arnaldo Carvalho de Melo , Linus Torvalds , Ananth N Mavinakayanahalli , Christoph Hellwig , Andi Kleen , Masami Hiramatsu , Oleg Nesterov , LKML , Jim Keniston , Roland McGrath , SystemTap , Andrew Morton , "Paul E. McKenney" On Mon, 2011-03-14 at 22:54 +0530, Srikar Dronamraju wrote: > > > > I'm also curious to why we can't modify text code that is also mapped as > > read/write. > > > > If text code is mapped read/write then on memory pressure the page gets > written to the disk. Hence breakpoints inserted may end up being in the > disk copy modifying the actual copy. > > OK, could you put a comment about that too. Thanks, -- Steve -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org