From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: debugging core dump Date: Tue, 11 Apr 2017 09:32:32 -0400 Message-ID: References: <87bms32iex.fsf@russet.org.uk> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1491917574 24296 195.159.176.226 (11 Apr 2017 13:32:54 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 11 Apr 2017 13:32:54 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Apr 11 15:32:51 2017 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cxvud-0006E4-73 for ged-emacs-devel@m.gmane.org; Tue, 11 Apr 2017 15:32:51 +0200 Original-Received: from localhost ([::1]:39338 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxvuj-0003uO-4T for ged-emacs-devel@m.gmane.org; Tue, 11 Apr 2017 09:32:57 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:56755) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxvuX-0003t5-Gz for emacs-devel@gnu.org; Tue, 11 Apr 2017 09:32:52 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cxvuS-0006N7-JZ for emacs-devel@gnu.org; Tue, 11 Apr 2017 09:32:45 -0400 Original-Received: from [195.159.176.226] (port=57642 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cxvuS-0006Mi-DF for emacs-devel@gnu.org; Tue, 11 Apr 2017 09:32:40 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1cxvuK-0005vA-D3 for emacs-devel@gnu.org; Tue, 11 Apr 2017 15:32:32 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 19 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:bbnfeTCBKmhGdSJ2cZ+8gasRXNA= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.159.176.226 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:213858 Archived-At: > I have both emacs-25 head and master building. I have also had > emacs-25.1 building on other machines. Not sure how to debug this; > advice welcome. Here's what I do, in those cases: M-x cd .../emacs/src M-x gud-gdb RET gdb ... temacs RET b maybe_call_debugger r -batch -l loadup dump [...crash...] bt the `r` line may need to be adjusted depending on whether the crash happens for the generation of src/bootstrap-emacs or src/emacs: I just copy&paste it from the failed build. Stefan