From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1457 invoked by alias); 31 Mar 2006 02:36:34 -0000 Received: (qmail 1445 invoked by uid 22791); 31 Mar 2006 02:36:33 -0000 X-Spam-Status: No, hits=-2.6 required=5.0 tests=AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from mga02.intel.com (HELO orsmga101-1.jf.intel.com) (134.134.136.20) by sourceware.org (qpsmtpd/0.31) with ESMTP; Fri, 31 Mar 2006 02:36:33 +0000 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101-1.jf.intel.com with ESMTP; 30 Mar 2006 18:36:31 -0800 Received: from scsmsx332.sc.intel.com (HELO scsmsx332.amr.corp.intel.com) ([10.3.90.6]) by orsmga001.jf.intel.com with ESMTP; 30 Mar 2006 18:36:31 -0800 X-IronPort-AV: i="4.03,148,1141632000"; d="scan'208"; a="17465093:sNHT16630705" Received: from scsmsx403.amr.corp.intel.com ([10.3.90.18]) by scsmsx332.amr.corp.intel.com with Microsoft SMTPSVC(6.0.3790.211); Thu, 30 Mar 2006 18:36:31 -0800 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-MimeOLE: Produced By Microsoft Exchange V6.5 Subject: RE: SystemTap vs. FC5 Xen kernels (was: 03-23-2006 Meeting minutes) Date: Fri, 31 Mar 2006 02:36:00 -0000 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: SystemTap vs. FC5 Xen kernels (was: 03-23-2006 Meeting minutes) Thread-Index: AcZUCGmKT0R46W09S/KtBl3dP+uoKgAYglBw From: "Stone, Joshua I" To: "William Cohen" Cc: "Roland McGrath" , "SystemTap" X-OriginalArrivalTime: 31 Mar 2006 02:36:31.0080 (UTC) FILETIME=[EB321680:01C6546B] X-IsSubscribed: yes Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2006-q1/txt/msg00904.txt.bz2 William Cohen wrote: > Sometimes the options are turned off on purpose. Do the Xen kernels > build with "CONFIG_KPROBES=3Dy"? yes =20 > If kernels are built, do the resulting kernels actually have kprobe > support? It use to be that xen kernels copy and pasted code from other > arches. What additional patches are needed to bring the kprobe support > in the xen kernel in line with the various architectures? In order to get the debug info working, I removed the change to lib/Kconfig.debug (mentioned in my other email), but left the change in arch/x86_64/kernel/entry-xen.S. I suspect that more will need to be done here before CONFIG_DEBUG_INFO really works completely, as there's probably some reason it was disabled, but this is good enough for testing SystemTap. On both xen0 and xenU, all pass-5 tests succeed, except those that use timer.profile. (systemtap.base/timers.stp and systemtap.maps/pmap_agg_overflow.stp). It seems that the timer.profile thinks it is registered successfully, but the callback is never triggered. I will investigate this further... Josh