From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7928 invoked by alias); 13 Sep 2005 03:55:13 -0000 Mailing-List: contact gdb-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sources.redhat.com Received: (qmail 7915 invoked by uid 22791); 13 Sep 2005 03:55:09 -0000 Received: from nevyn.them.org (HELO nevyn.them.org) (66.93.172.17) by sourceware.org (qpsmtpd/0.30-dev) with ESMTP; Tue, 13 Sep 2005 03:55:09 +0000 Received: from drow by nevyn.them.org with local (Exim 4.52) id 1EF1sx-0005bQ-9T; Mon, 12 Sep 2005 23:55:07 -0400 Date: Tue, 13 Sep 2005 03:55:00 -0000 From: Daniel Jacobowitz To: Chris Markle Cc: gdb@sources.redhat.com Subject: Re: gcore command on 6.3 seems to generate smaller core than it should Message-ID: <20050913035507.GA21503@nevyn.them.org> Mail-Followup-To: Chris Markle , gdb@sources.redhat.com References: <43264CB0.9090206@sendmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <43264CB0.9090206@sendmail.com> User-Agent: Mutt/1.5.8i X-SW-Source: 2005-09/txt/msg00084.txt.bz2 On Mon, Sep 12, 2005 at 08:51:12PM -0700, Chris Markle wrote: > Folks, > > Using GNU gdb 6.3 on 2.6.12.5 kernel (uname -a: Linux xxx.com 2.6.12.5 > #1 SMP Wed Aug 31 23:52:18 PDT 2005 i686 pentium4 i386 GNU/Linux), when > I generate a core file of a Java process that is 1.9gb I get a 13mb (!) > core file. Many addresses in that core are not accessible. There is no > complaining from gcore about not enough space or other issues when I > issue it, and ulimit show core blocks as unlimited. When I tried it on > 2.6.something-else with GNU gdb Red Hat Linux (5.3.90-0.20030710.40rh) I > get a full very large core file. What kind of mappings are missed? What doesn't show up in the core file? -- Daniel Jacobowitz CodeSourcery, LLC