From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.help Subject: Re: help debugging a segfault Date: Tue, 18 Oct 2016 08:48:08 +0300 Message-ID: <83insqxl5z.fsf@gnu.org> References: NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1476769751 8678 195.159.176.226 (18 Oct 2016 05:49:11 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 18 Oct 2016 05:49:11 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Oct 18 07:49:07 2016 Return-path: Envelope-to: geh-help-gnu-emacs@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 1bwNGd-0008OY-UX for geh-help-gnu-emacs@m.gmane.org; Tue, 18 Oct 2016 07:48:52 +0200 Original-Received: from localhost ([::1]:39074 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bwNGg-0001JT-5c for geh-help-gnu-emacs@m.gmane.org; Tue, 18 Oct 2016 01:48:54 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:60670) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bwNGH-0001JB-FH for help-gnu-emacs@gnu.org; Tue, 18 Oct 2016 01:48:30 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bwNGE-000368-DC for help-gnu-emacs@gnu.org; Tue, 18 Oct 2016 01:48:29 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:57111) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bwNGE-000364-AS for help-gnu-emacs@gnu.org; Tue, 18 Oct 2016 01:48:26 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:2723 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1bwNGD-0002Bq-KY for help-gnu-emacs@gnu.org; Tue, 18 Oct 2016 01:48:26 -0400 In-reply-to: (message from Sam Halliday on Mon, 17 Oct 2016 13:28:01 -0700 (PDT)) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:111557 Archived-At: > Date: Mon, 17 Oct 2016 13:28:01 -0700 (PDT) > From: Sam Halliday > > Typing "bt" when loading the coredump gives > > (gdb) bt > #0 0x00007fe8cbfabf5f in ?? () > #1 0x00000000005da106 in mapcar1 (leni=11, vals=, fn=40, seq=498) at fns.c:2494 > #2 0xffffffffffffffff in ?? () > #3 0xffffffffffffffff in ?? () > #4 0xffffffffffffffff in ?? () > #5 0xffffffffffffffff in ?? () > #6 0xffffffffffffffff in ?? () > #7 0xffffffffffffffff in ?? () > #8 0xffffffffffffffff in ?? () > #9 0x000000000000000b in ?? () > #10 0x00000000004ee994 in Finternal_merge_in_global_face (face=2, frame=12113136) at xfaces.c:3669 > #11 0x0000000000000000 in ?? () This is an optimized build, which is very hard to debug. I suggest to reconfigure with "-O0 -gdwarf-4- g3" in CFLAGS, as proposed in etc/DEBUG. And please post the details to bug 24358 instead of here. Thanks.