From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25049 invoked by alias); 7 Jun 2007 14:51:30 -0000 Received: (qmail 24997 invoked by uid 22791); 7 Jun 2007 14:51:29 -0000 X-Spam-Status: No, hits=-2.4 required=5.0 tests=AWL,BAYES_00,DK_POLICY_SIGNSOME,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (66.187.233.31) by sourceware.org (qpsmtpd/0.31) with ESMTP; Thu, 07 Jun 2007 14:51:23 +0000 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.13.1/8.13.1) with ESMTP id l57EpJXb012503; Thu, 7 Jun 2007 10:51:19 -0400 Received: from pobox.toronto.redhat.com (pobox.toronto.redhat.com [172.16.14.4]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id l57EpID6010414; Thu, 7 Jun 2007 10:51:18 -0400 Received: from touchme.toronto.redhat.com (IDENT:postfix@touchme.toronto.redhat.com [172.16.14.9]) by pobox.toronto.redhat.com (8.12.11.20060308/8.12.11) with ESMTP id l57EpIo5012233; Thu, 7 Jun 2007 10:51:18 -0400 Received: from ton.toronto.redhat.com (ton.toronto.redhat.com [172.16.14.15]) by touchme.toronto.redhat.com (Postfix) with ESMTP id 460A5800083; Thu, 7 Jun 2007 10:51:18 -0400 (EDT) Received: from ton.toronto.redhat.com (localhost.localdomain [127.0.0.1]) by ton.toronto.redhat.com (8.13.1/8.13.1) with ESMTP id l57EpHQd010841; Thu, 7 Jun 2007 10:51:17 -0400 Received: (from fche@localhost) by ton.toronto.redhat.com (8.13.1/8.13.1/Submit) id l57EpHxi010838; Thu, 7 Jun 2007 10:51:17 -0400 X-Authentication-Warning: ton.toronto.redhat.com: fche set sender to fche@redhat.com using -f To: Peter Bach Cc: Mike Mason , SystemTAP Subject: Re: SystemTap on Ubuntu 7.04 i386 References: <46659C45.9010309@us.ibm.com> <46680618.4010705@comcast.net> From: fche@redhat.com (Frank Ch. Eigler) Date: Thu, 07 Jun 2007 14:51:00 -0000 In-Reply-To: <46680618.4010705@comcast.net> Message-ID: User-Agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2007-q2/txt/msg00513.txt.bz2 Peter Bach wrote: > [...] > > I'm wondering if we could get the distros to install the > > vmlinux-only debuginfo by default. I'm guessing this would allow > > 95% of systemtap to work out-of-box. Maybe. Of the examples, tapsets, and test cases in the source tree, only a few dozen refer to modules. Some of them are important: NFS, SCSI. > This is a great idea, to have the debuginfo available. The situation > Innn find myself in is to load the distro (usually RedHat or SuSE), > and use online repositories to keep up to date. The problem is that > if a new kernel gets installed, I have to recompile with debuginfo > just to get the usefulness of SystemTap. Red Hat (RHEL and Fedora) each publish kernel-debuginfo RPMs for downloading. yum can get 'em for you. Some distributions toss it away during the build (Debian, Ubuntu), so those need policy changes. > I don't know if this is a function of having the distros compile a > version with debuginfo, or just making it available in the online > repositories, but this would seem to be a big hurdle [...] We have mentioned the possibility of creating a network server for debugging information processing. The idea has not yet been fleshed out though. > The real value is that SystemTap is not only useful for solving > problems in during the development cycle, but illuminates how Linux > works under the covers, in the most dynamic way, when it is actually > running. This is much more useful that perusing the code. The target > audience for this is only every CS student on the planet. Yeah - mind if I quote you on that? ;-) - FChE