From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15606 invoked by alias); 18 Jun 2014 10:43:29 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 15592 invoked by uid 89); 18 Jun 2014 10:43:29 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS,T_RP_MATCHES_RCVD 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 (AES256-GCM-SHA384 encrypted) ESMTPS; Wed, 18 Jun 2014 10:43:28 +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 s5IAhPl8026431 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 18 Jun 2014 06:43:25 -0400 Received: from [127.0.0.1] (ovpn01.gateway.prod.ext.ams2.redhat.com [10.39.146.11]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s5IAhNMT006707; Wed, 18 Jun 2014 06:43:24 -0400 Message-ID: <53A16D4A.70500@redhat.com> Date: Wed, 18 Jun 2014 10:43:00 -0000 From: Pedro Alves User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 MIME-Version: 1.0 To: Jan Kratochvil CC: Doug Evans , "gdb-patches@sourceware.org" Subject: Re: Regression for watchpoint-fork.exp [Re: [PATCH v3 2/5] PR breakpoints/7143 - Watchpoint does not trigger when first set] References: <1394154640-14053-1-git-send-email-palves@redhat.com> <1394154640-14053-3-git-send-email-palves@redhat.com> <53272CB0.6050101@redhat.com> <532AF3D0.8090904@redhat.com> <20140617191850.GA10997@host2.jankratochvil.net> In-Reply-To: <20140617191850.GA10997@host2.jankratochvil.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-SW-Source: 2014-06/txt/msg00644.txt.bz2 On 06/17/2014 08:18 PM, Jan Kratochvil wrote: > On Thu, 20 Mar 2014 14:57:36 +0100, Pedro Alves wrote: >> Here's what I pushed (nothing else changed). > > 31e77af205cf6564c2bf4c18400b4ca16bdf92cd is the first bad commit > commit 31e77af205cf6564c2bf4c18400b4ca16bdf92cd > Author: Pedro Alves > Date: Thu Mar 20 13:26:32 2014 +0000 > PR breakpoints/7143 - Watchpoint does not trigger when first set > > PASS kernel-3.14.6-200.fc20.x86_64 > FAIL kernel-3.13.10-200.dentrybuflen.fc20.x86_64 > > continue^M > Continuing.^M > main () at ./gdb.threads/watchpoint-fork-st.c:50^M > 50 forkoff (1);^M > Couldn't write debug register: Invalid argument.^M Odd. > (gdb) FAIL: gdb.threads/watchpoint-fork.exp: parent: singlethreaded: breakpoint after the first fork > > Being tested for default linux-nat. > > That 'dentrybuflen' patch should not matter. I did not check which Linux > kernels are / are not affected by the regression but it would be probably > better to make the GDB behavior more Linux kernel compatible. Yes, though off hand I'm clueless on what's going on. -- Pedro Alves