From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751145AbWHGIAA (ORCPT ); Mon, 7 Aug 2006 04:00:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751148AbWHGIAA (ORCPT ); Mon, 7 Aug 2006 04:00:00 -0400 Received: from public.id2-vpn.continvity.gns.novell.com ([195.33.99.129]:46538 "EHLO emea1-mh.id2.novell.com") by vger.kernel.org with ESMTP id S1751145AbWHGH77 (ORCPT ); Mon, 7 Aug 2006 03:59:59 -0400 Message-Id: <44D70F42.76E4.0078.0@novell.com> X-Mailer: Novell GroupWise Internet Agent 7.0.1 Date: Mon, 07 Aug 2006 09:00:34 +0100 From: "Jan Beulich" To: "Chuck Ebbert" <76306.1226@compuserve.com>, "Andi Kleen" Cc: "Jesper Juhl" , "Andrew Morton" , "Dave Jones" , "linux-kernel" Subject: Re: [patch] i386: fix one case of stuck dwarf2 unwinder II References: <200608061212_MC3-1-C747-C2AD@compuserve.com> In-Reply-To: <200608061212_MC3-1-C747-C2AD@compuserve.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >> Yes that's the problem. If you check for <= stext/_stext then the unwinder >> won't catch the L6 (which is above it) and report a "stuck" again > >Maybe I'm being dense here, but: > >c0100210 t L6 >c0100212 t check_x87 >c010023a t setup_idt >c0100257 t rp_sidt >c0100264 t ignore_int >c0100298 T stext >c0100298 T _stext > >It looks like L6 is before _stext to me. So it would seem to me. Nevertheless, in my opinion the proper fix is to annotate the call site (in head.S) to specify a zero EIP as return address (which denotes the bottom of a frame). Jan