From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1764 invoked by alias); 18 Feb 2008 17:29:30 -0000 Received: (qmail 1755 invoked by uid 22791); 18 Feb 2008 17:29:30 -0000 X-Spam-Status: No, hits=-2.5 required=5.0 tests=AWL,BAYES_00,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; Mon, 18 Feb 2008 17:28:59 +0000 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id m1IHStee027593; Mon, 18 Feb 2008 12:28:58 -0500 Received: from lacrosse.corp.redhat.com (lacrosse.corp.redhat.com [172.16.52.154]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m1IHStDs019558; Mon, 18 Feb 2008 12:28:55 -0500 Received: from localhost.localdomain (dhcp231-154.rdu.redhat.com [10.11.231.154]) by lacrosse.corp.redhat.com (8.12.11.20060308/8.11.6) with ESMTP id m1IHSsLM000441; Mon, 18 Feb 2008 12:28:55 -0500 Message-ID: <47B9C050.5070701@redhat.com> Date: Mon, 18 Feb 2008 17:29:00 -0000 From: William Cohen User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: Srinivasa Ds CC: "systemtap@sources.redhat.com" Subject: Re: [RFC] SystemTap FAQ References: <47AB2693.8040601@in.ibm.com> <47B97950.8010605@in.ibm.com> In-Reply-To: <47B97950.8010605@in.ibm.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.58 on 172.16.52.254 X-IsSubscribed: yes 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: 2008-q1/txt/msg00298.txt.bz2 Srinivasa Ds wrote: > Srinivasa Ds wrote: >> Literally, just the questions as of now :-) >> >> Please add any questions we've missed; more importantly, please attempt >> to answer a few of them too. >> >> Once answered, this will live in the SystemTap wiki. >> > > I have put up the SystemTap FAQ page in wiki, > http://sourceware.org/systemtap/wiki/SystemTapFAQ. > Please go through it and feel free to add questions(along with answer) > to improve it further. > > Thanks Srinivasa DS Hi Srinivasa, Thanks for the FAQ. I have some comments about the FAQ (maybe some comments on how SystemTap handles some of the things in FAQ). 1) Seems like systemtap should be able to handle lack of proper debuginfo more clearly. It should be possible to distinguish between non-existent debug information and incorrect/inconsistent debuginfo. The strip files from the rpms have tags to debug file name. 2) Why doesn't systemtap attempt to search for /usr/modules/`uname -r`/build/vmlinux? 4) Also mention the -k option to save the resulting stap directory. 17) For RHEL5 can use "yum --enablerepo=rhel-debuginfo" to get debuginfo. 18) What happens when someone forgets the "-p4" option? bz#2725 can cause machine to crash. Are there going to be purpose built options in systemtap to print out this information? -Will