From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#48433: 28.0.50; Emacs Core Dump when trying to visit file Date: Sat, 15 May 2021 13:40:10 +0300 Message-ID: <831ra8xotx.fsf@gnu.org> References: <87k0o04ccq.fsf@weblogism.com> <837dk0xrsz.fsf@gnu.org> <156230f0-f761-a7d6-bdf3-d1dd2df2ecf7@weblogism.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="566"; mail-complaints-to="usenet@ciao.gmane.io" Cc: acm@muc.de, 48433@debbugs.gnu.org To: =?UTF-8?Q?S=C3=A9bastien?= Le Callonnec Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat May 15 12:41:11 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lhrjK-000AaZ-Im for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 15 May 2021 12:41:10 +0200 Original-Received: from localhost ([::1]:54190 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lhrjJ-0007Fz-Ls for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 15 May 2021 06:41:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:38530) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lhrjC-0007E1-Hm for bug-gnu-emacs@gnu.org; Sat, 15 May 2021 06:41:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:36148) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lhrjC-0003n0-AM for bug-gnu-emacs@gnu.org; Sat, 15 May 2021 06:41:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lhrjC-0002L8-8b for bug-gnu-emacs@gnu.org; Sat, 15 May 2021 06:41:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 15 May 2021 10:41:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 48433 X-GNU-PR-Package: emacs Original-Received: via spool by 48433-submit@debbugs.gnu.org id=B48433.16210752238935 (code B ref 48433); Sat, 15 May 2021 10:41:02 +0000 Original-Received: (at 48433) by debbugs.gnu.org; 15 May 2021 10:40:23 +0000 Original-Received: from localhost ([127.0.0.1]:47694 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lhriZ-0002K3-Av for submit@debbugs.gnu.org; Sat, 15 May 2021 06:40:23 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:44758) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lhriX-0002Jh-0I for 48433@debbugs.gnu.org; Sat, 15 May 2021 06:40:21 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:40464) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lhriQ-0003DX-8m; Sat, 15 May 2021 06:40:14 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:2017 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lhriP-00083P-NP; Sat, 15 May 2021 06:40:14 -0400 In-Reply-To: <156230f0-f761-a7d6-bdf3-d1dd2df2ecf7@weblogism.com> (message from =?UTF-8?Q?S=C3=A9bastien?= Le Callonnec on Sat, 15 May 2021 11:10:38 +0100) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:206587 Archived-At: > Cc: 48433@debbugs.gnu.org, acm@muc.de > From: Sébastien Le Callonnec > Date: Sat, 15 May 2021 11:10:38 +0100 > > > Thanks, but can you also provide a Lisp backtrace, by invoking > > "xbacktrace" from GDB? That command is defined in src/.gdbinit. > > > > I am not having much luck there: > > (gdb) xbacktrace > 'backtrace_top' has unknown return type; cast the call to its declared > return type How did you compile Emacs? Please compile with -g3 on the compiler command line. > This seems to isolate the issue to `read_minibuf_unwind`, which is part > of the changeset of the commit I bisected to. That was clear before, what is not clear is _where_ in read_minibuf_unwind it happens, and why. That's a very large function.