From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935102AbXK3Pt7 (ORCPT ); Fri, 30 Nov 2007 10:49:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759310AbXK3Ptr (ORCPT ); Fri, 30 Nov 2007 10:49:47 -0500 Received: from mga02.intel.com ([134.134.136.20]:34675 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758097AbXK3Ptq convert rfc822-to-8bit (ORCPT ); Fri, 30 Nov 2007 10:49:46 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.23,235,1194249600"; d="scan'208";a="283606110" X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: RE: [patch 0/2] x86, ptrace: support for branch trace store(BTS) Date: Fri, 30 Nov 2007 15:48:21 -0000 Message-ID: <029E5BE7F699594398CA44E3DDF5544401052377@swsmsx413.ger.corp.intel.com> In-Reply-To: <20071130105450.GE9941@elte.hu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [patch 0/2] x86, ptrace: support for branch trace store(BTS) thread-index: AcgzP6qIu/g2piBvRIC0G1+OwREc1QAKGXRw References: <029E5BE7F699594398CA44E3DDF5544401024075@swsmsx413.ger.corp.intel.com> <20071129155940.7df70ac2.akpm@linux-foundation.org> <20071130105450.GE9941@elte.hu> From: "Metzger, Markus T" To: "Ingo Molnar" , "Andrew Morton" Cc: , , , , "Siddha, Suresh B" , "Michael Kerrisk" , "Metzger, Markus T" , X-OriginalArrivalTime: 30 Nov 2007 15:48:20.0719 (UTC) FILETIME=[6EB76FF0:01C83368] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >yep, i already tried to check how well it integrates to x86.git: I ported it to scm/linux/kernel/git/x86/linux-2.6-x86.git mm. I will send out the patch and then look at the below discussion. >the code does not seem to be layered correctly: i'd suggest to >read the >discussion between Roland McGrath and Alan Stern on lkml, about kwatch >-> hw_breakpoint, to see how a more general debugging framework >can/should be built. These things shouldnt be limited to user-space >alone, the kernel could probably use hardware tracing even more than >user-space could. (because it's a much harder to debug environment) regards, markus. --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.