From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 391 invoked by alias); 20 Feb 2006 20:05:19 -0000 Received: (qmail 380 invoked by uid 22791); 20 Feb 2006 20:05:19 -0000 X-Spam-Status: No, hits=-2.4 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS,SUBJ_HAS_UNIQ_ID 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, 20 Feb 2006 20:05:16 +0000 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.12.11/8.12.11) with ESMTP id k1KK5EqU006733 for ; Mon, 20 Feb 2006 15:05:14 -0500 Received: from pobox.corp.redhat.com (pobox.corp.redhat.com [172.16.52.156]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id k1KK5E111839 for ; Mon, 20 Feb 2006 15:05:14 -0500 Received: from [172.16.59.162] (dhcp59-162.rdu.redhat.com [172.16.59.162]) by pobox.corp.redhat.com (8.12.8/8.12.8) with ESMTP id k1KK5D5G028490; Mon, 20 Feb 2006 15:05:13 -0500 Message-ID: <43FA20F9.7020808@redhat.com> Date: Mon, 20 Feb 2006 20:05:00 -0000 From: William Cohen User-Agent: Mozilla Thunderbird 1.0.7-1.1.fc4 (X11/20050929) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Martin Hunt CC: "systemtap@sources.redhat.com" Subject: Re: Summary of nightly tests 20060220 References: <43F9F0EF.4010009@redhat.com> <1140465215.3791.11.camel@monkey2> In-Reply-To: <1140465215.3791.11.camel@monkey2> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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/msg00572.txt.bz2 Martin Hunt wrote: >>FC5 i686 Linux 2.6.15-1.1948_FC5smp >> >>Stap translator summary of failed tests >>buildok-seven.stp: >> Unable to find identifier $type in function find_pid >> Unable to find identifier $task in function detach_pid > > > There don't appear to be significant changes in the sources to account > for this. That makes it a likely gcc bug. > > Can someone write up the proper procedure to use to report these? I > think it should be on the web page. > > Martin > > The problem appears only in certain kernels. Possible causes for this type of problem: 1) source code has changed so those variable/arguments don't exist 2) gcc tool chain not generating the proper debug information 3) stap is not finding them in the debugging information Are there other possibilities or should this be finer grain resolution, e.g. elfutils vs stap translator? The procedure should make it clear which of the alternatives can be ruled out. Ideally, would like it to point to to which one is causing the problem. -Will