From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28053 invoked by alias); 10 Feb 2014 15:50:27 -0000 Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org Received: (qmail 28037 invoked by uid 89); 10 Feb 2014 15:50:25 -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; Mon, 10 Feb 2014 15:50:25 +0000 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s1AFoNfq001948 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Mon, 10 Feb 2014 10:50:23 -0500 Received: from oldenburg.str.redhat.com (ovpn-116-16.ams2.redhat.com [10.36.116.16]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s1AFoKRX023388 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Mon, 10 Feb 2014 10:50:22 -0500 Message-ID: <52F8F53C.8090708@redhat.com> Date: Mon, 10 Feb 2014 15:50:00 -0000 From: Florian Weimer User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: gdb@sourceware.org Subject: How important is mcheck? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2014-02/txt/msg00024.txt.bz2 GDB enables mcheck if available, unless Python with threading support is built in (which most distributions do). I've proposed to deprecate mcheck in glibc, with a goal towards eventually replacing it with stubs unavailable to newly compiled programs. GDB would still run (and compile), albeit without mcheck support. I see two bug reports about issues discovered with mcheck, so maybe it is useful. Could you move mcheck in-tree? Then you'd be able to enable it regardless of Python threading support. -- Florian Weimer / Red Hat Product Security Team