From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 24406 invoked by alias); 28 Feb 2011 18:44:44 -0000 Received: (qmail 24395 invoked by uid 22791); 28 Feb 2011 18:44:43 -0000 X-SWARE-Spam-Status: No, hits=-6.3 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 28 Feb 2011 18:44:37 +0000 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p1SIiTcj016470 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 28 Feb 2011 13:44:29 -0500 Received: from host1.dyn.jankratochvil.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id p1SIiRcE023976 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 28 Feb 2011 13:44:28 -0500 Received: from host1.dyn.jankratochvil.net (localhost [127.0.0.1]) by host1.dyn.jankratochvil.net (8.14.4/8.14.4) with ESMTP id p1SIiRZI015730; Mon, 28 Feb 2011 19:44:27 +0100 Received: (from jkratoch@localhost) by host1.dyn.jankratochvil.net (8.14.4/8.14.4/Submit) id p1SIiQJh015729; Mon, 28 Feb 2011 19:44:26 +0100 Date: Mon, 28 Feb 2011 18:50:00 -0000 From: Jan Kratochvil To: Pedro Alves Cc: gdb-patches@sourceware.org Subject: Re: graceful unwind termination when we'd need unavailable/uncollect memory or registers to unwind further Message-ID: <20110228184426.GA15678@host1.dyn.jankratochvil.net> References: <201102221834.42413.pedro@codesourcery.com> <20110228154132.GA7881@host1.dyn.jankratochvil.net> <201102281555.56478.pedro@codesourcery.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201102281555.56478.pedro@codesourcery.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-IsSubscribed: yes 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 X-SW-Source: 2011-02/txt/msg00933.txt.bz2 On Mon, 28 Feb 2011 16:55:56 +0100, Pedro Alves wrote: > That's expected. In my example, the _PC_ was not > unwoundable in the outermost unwindable frame, but other > registers were. In your example, it was, and I'm going > to guess that since you haven't collected any registers, > you're seeing the dwarf unwinder not being able to compute > the CFA. OK, I see now that explains it. Thanks, Jan