From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 16356 invoked by alias); 12 Jun 2014 01:51:06 -0000 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 Received: (qmail 15969 invoked by uid 89); 12 Jun 2014 01:51:03 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-4.1 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD,SPF_HELO_PASS,SPF_PASS autolearn=ham version=3.3.2 X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 12 Jun 2014 01:51:01 +0000 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s5C1p02f027097 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 11 Jun 2014 21:51:00 -0400 Received: from fche.csb (vpn-59-213.rdu2.redhat.com [10.10.59.213]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s5C1oxAC008198; Wed, 11 Jun 2014 21:51:00 -0400 Received: by fche.csb (Postfix, from userid 2569) id 4525458543; Wed, 11 Jun 2014 21:50:59 -0400 (EDT) To: William Cohen Cc: systemtap@sourceware.org Subject: Re: missing sytemtap kernel.trace("net*") on newer Fedora kernels References: <5398CB2C.9000001@redhat.com> From: fche@redhat.com (Frank Ch. Eigler) Date: Thu, 12 Jun 2014 01:51:00 -0000 In-Reply-To: <5398CB2C.9000001@redhat.com> (William Cohen's message of "Wed, 11 Jun 2014 17:33:32 -0400") Message-ID: User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.4 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-SW-Source: 2014-q2/txt/msg00228.txt.bz2 William Cohen writes: > [...] On the rhel7 kernel all of the tracepoints are available, > However, on Fedora 20 none of the kernel.trace("net*"), > kernel.trace("*skb*"), or kernel.trace("napi_poll") tracepoints are > there. > [...] Those kernel tracepoints that are defined in private headers or .c files, IOW not included under include/linux/trace/*, require kernel-debuginfo to be installed for systemtap to find them. There are others that are under include/linux/trace/* but the header files are not self-contained, and thus require stap to emit dummy forward type declarations. See also PR9993, the tapsets.cxx tracepoint_extra_decls() function, and the stap scripts/tracepoint-diff tool. - FChE