From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#27761: Crash while using proof-general/company-coq on OS X Date: Wed, 19 Jul 2017 21:40:15 +0300 Message-ID: <83mv80b78w.fsf@gnu.org> References: <83wp74bbvg.fsf@gnu.org> <29A99649-8E46-4ED8-88EE-000F5926400C@gmail.com> <83pocwb8qx.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1500489678 16769 195.159.176.226 (19 Jul 2017 18:41:18 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 19 Jul 2017 18:41:18 +0000 (UTC) Cc: 27761@debbugs.gnu.org, denis.redozubov@gmail.com To: John Wiegley Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jul 19 20:41:11 2017 Return-path: Envelope-to: geb-bug-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 1dXtuE-0003eb-QU for geb-bug-gnu-emacs@m.gmane.org; Wed, 19 Jul 2017 20:41:06 +0200 Original-Received: from localhost ([::1]:34581 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dXtuI-0000l6-IF for geb-bug-gnu-emacs@m.gmane.org; Wed, 19 Jul 2017 14:41:10 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:55727) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dXtuB-0000kq-5I for bug-gnu-emacs@gnu.org; Wed, 19 Jul 2017 14:41:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dXtuA-0000Eg-7J for bug-gnu-emacs@gnu.org; Wed, 19 Jul 2017 14:41:03 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:45439) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dXtuA-0000EZ-3R for bug-gnu-emacs@gnu.org; Wed, 19 Jul 2017 14:41:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1dXtu9-0001NG-TO for bug-gnu-emacs@gnu.org; Wed, 19 Jul 2017 14:41:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 19 Jul 2017 18:41:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 27761 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 27761-submit@debbugs.gnu.org id=B27761.15004896555264 (code B ref 27761); Wed, 19 Jul 2017 18:41:01 +0000 Original-Received: (at 27761) by debbugs.gnu.org; 19 Jul 2017 18:40:55 +0000 Original-Received: from localhost ([127.0.0.1]:48116 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dXtu3-0001Mq-Lx for submit@debbugs.gnu.org; Wed, 19 Jul 2017 14:40:55 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:36457) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dXtu2-0001Md-Et for 27761@debbugs.gnu.org; Wed, 19 Jul 2017 14:40:54 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dXtts-0000Au-D6 for 27761@debbugs.gnu.org; Wed, 19 Jul 2017 14:40:49 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:46292) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dXtts-0000Ao-4N; Wed, 19 Jul 2017 14:40:44 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:2288 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1dXttp-0000JI-FL; Wed, 19 Jul 2017 14:40:43 -0400 In-reply-to: (message from John Wiegley on Wed, 19 Jul 2017 14:34:15 -0400) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:134759 Archived-At: > From: John Wiegley > Cc: denis.redozubov@gmail.com, 27761@debbugs.gnu.org > Date: Wed, 19 Jul 2017 14:34:15 -0400 > > >>>>> Eli Zaretskii writes: > > >> This may be hard, but we'll try. It's 100% reproducible in both 25.1 and > >> 25.2, but involves company-coq, Proof General, and some particular source > >> files. > > > Aren't those available for reproducing on another machine? > > Sure, if you're willing to install them, we can send the source files and the > exact steps. Please go ahead. > > Alternatively, I could guide you through debugging the recursion, but I'll > > need you to use GDB, not the macOS debugger. > > Sadly, only lldb is possible here. :( Then I cannot help you with specific commands, but if you could step through that code in get_next_display_element which recurses, and tell me why it does so, what is the character where this happens, and what is the value of it->method there, it could give some hints.