From owner-freebsd-amd64@FreeBSD.ORG Thu May 21 16:21:13 2009 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7EA251065755; Thu, 21 May 2009 16:21:13 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id 4E5308FC20; Thu, 21 May 2009 16:21:13 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id 034EE46B2C; Thu, 21 May 2009 12:21:13 -0400 (EDT) Received: from jhbbsd.hudson-trading.com (unknown [209.249.190.8]) by bigwig.baldwin.cx (Postfix) with ESMTPA id 6B4E78A026; Thu, 21 May 2009 12:21:06 -0400 (EDT) From: John Baldwin To: freebsd-amd64@freebsd.org Date: Thu, 21 May 2009 12:21:00 -0400 User-Agent: KMail/1.9.7 References: <200905201552.n4KFqjxY096124@www.freebsd.org> In-Reply-To: <200905201552.n4KFqjxY096124@www.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200905211221.00654.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Thu, 21 May 2009 12:21:06 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.95 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=4.2 tests=AWL,BAYES_00,RDNS_NONE autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: freebsd-gnats-submit@freebsd.org, Stephen Sanders Subject: Re: amd64/134757: 32 bit processes on 64 bit platforms occasionally drop core with bad ds reg X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 May 2009 16:21:14 -0000 On Wednesday 20 May 2009 11:52:45 am Stephen Sanders wrote: > > >Number: 134757 > >Category: amd64 > >Synopsis: 32 bit processes on 64 bit platforms occasionally drop core with bad ds reg > >Confidential: no > >Severity: non-critical > >Priority: medium > >Responsible: freebsd-amd64 > >State: open > >Quarter: > >Keywords: > >Date-Required: > >Class: sw-bug > >Submitter-Id: current-users > >Arrival-Date: Wed May 20 16:00:12 UTC 2009 > >Closed-Date: > >Last-Modified: > >Originator: Stephen Sanders > >Release: 6.3 Release amd64 > >Organization: > OPNET > >Environment: > FreeBSD alt-4100-2.lab.opnet.com 6.3-RELEASE FreeBSD 6.3-RELEASE #0: Tue Mar 31 14:11:07 PDT 2009 pmai@focus7.networkphysics.com:/u1/builds/ping/NP/FreeBSD/package/NPbabkernel/bld-tmp/sys/amd64/compile/NPBAB amd64 > >Description: > With fair regularity, we have 32 bit processes dropping core on 64 bit systems. In particular perl and bash. > > Our system is definitely a hybrid but that aspect appears to not be the issue. The system works properly more than not. > > I have attached a file containing 2 gdb sessions. One session is looking at a core that bash left behind and the other is looking at a bash session with no core. Have you tested this on 7 at all? At this point most developers are probably much more inclined to fix this for 8.0 and 7.x rather than 6.x. -- John Baldwin