Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757750Ab0AOOZR (ORCPT ); Fri, 15 Jan 2010 09:25:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757727Ab0AOOZQ (ORCPT ); Fri, 15 Jan 2010 09:25:16 -0500 Received: from casper.infradead.org ([85.118.1.10]:45607 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756330Ab0AOOZP (ORCPT ); Fri, 15 Jan 2010 09:25:15 -0500 Subject: Re: [RFC] [PATCH 4/7] Uprobes Implementation From: Peter Zijlstra To: Srikar Dronamraju Cc: "Frank Ch. Eigler" , Arnaldo Carvalho de Melo , Frederic Weisbecker , LKML , Mark Wielaard , utrace-devel In-Reply-To: <20100115142007.GA1628@linux.vnet.ibm.com> References: <20100111122553.22050.46895.sendpatchset@srikar.in.ibm.com> <1263467394.4244.291.camel@laptop> <1263509380.4875.35.camel@localhost.localdomain> <1263546632.4244.352.camel@laptop> <1263548124.4244.358.camel@laptop> <20100115131037.GP4822@redhat.com> <1263561930.4244.417.camel@laptop> <20100115133825.GQ4822@redhat.com> <1263563276.4244.426.camel@laptop> <20100115142007.GA1628@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" Date: Fri, 15 Jan 2010 15:25:09 +0100 Message-ID: <1263565509.4244.432.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2010-01-15 at 19:50 +0530, Srikar Dronamraju wrote: > > Srikar seemed to suggest it needed stop/resume. > > > > If process traps, We dont need to stop/resume other threads. > uprobes needs threads to quiesce when inserting/deleting the breakpoint. Right, I don't think we need to at all. See the CoW thing from previous emails. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/