From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.devel Subject: Re: (select-window nil) crash with gcc-8.2.0 Date: Sun, 07 Apr 2019 09:13:44 +0200 Message-ID: References: <0993F546-D21B-4722-8300-7A9CDDCE7EB8@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="228298"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux) Cc: emacs-devel@gnu.org To: Madhu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Apr 07 09:14:28 2019 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hD20Y-000xG2-Jq for ged-emacs-devel@m.gmane.org; Sun, 07 Apr 2019 09:14:26 +0200 Original-Received: from localhost ([127.0.0.1]:35426 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hD20X-00084G-Ce for ged-emacs-devel@m.gmane.org; Sun, 07 Apr 2019 03:14:25 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:53751) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hD1zy-000847-Hx for emacs-devel@gnu.org; Sun, 07 Apr 2019 03:13:51 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hD1zx-0006Hg-QT for emacs-devel@gnu.org; Sun, 07 Apr 2019 03:13:50 -0400 Original-Received: from mail-out.m-online.net ([212.18.0.9]:42606) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hD1zx-0006H7-H1 for emacs-devel@gnu.org; Sun, 07 Apr 2019 03:13:49 -0400 Original-Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 44cPt35kBGz1rD9k; Sun, 7 Apr 2019 09:13:47 +0200 (CEST) Original-Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 44cPt34XDxz1qwTJ; Sun, 7 Apr 2019 09:13:47 +0200 (CEST) X-Virus-Scanned: amavisd-new at mnet-online.de Original-Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id 0OeNFonAn7nb; Sun, 7 Apr 2019 09:13:46 +0200 (CEST) X-Auth-Info: StYEY5v6goTLnICiisj7+7SmUurijS/wUx2pOuOc3njc8NOE+7nrBaVKBcRNJVKe Original-Received: from linux.local (ppp-46-244-183-51.dynamic.mnet-online.de [46.244.183.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Sun, 7 Apr 2019 09:13:46 +0200 (CEST) Original-Received: by linux.local (Postfix, from userid 501) id A0D8B1E53F9; Sun, 7 Apr 2019 09:13:44 +0200 (CEST) X-Yow: WHOA!! I'm having a RELIGIOUS EXPERIENCE right NOW!! In-Reply-To: (Madhu's message of "Sun, 07 Apr 2019 10:49:10 +0530") X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 212.18.0.9 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:235060 Archived-At: On Apr 07 2019, Madhu wrote: > the problem is that if gcc is producing the wrong code then the > backtrace is unreliable. This is not the backtrace one would expect > from calling (select-window nil). Step through select_window to see where it goes wrong. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."