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#30182: Update Date: Wed, 24 Jan 2018 21:10:52 +0200 Message-ID: <83vafrm5s3.fsf@gnu.org> References: <87k1wdqc4q.fsf@gmail.com> <87inbxqc1l.fsf@gmail.com> <5A631B7F.3030308@gmx.at> <878tcs3j23.fsf@gmail.com> <5A634E53.7010205@gmx.at> <87mv182bzk.fsf@gmail.com> <83a7x7sww6.fsf@gnu.org> <87efmj27d5.fsf@gmail.com> <83vafvqjbf.fsf@gnu.org> <87inbvxdz8.fsf@gmail.com> <5A65AB97.1030401@gmx.at> <87po62kk10.fsf@gmail.com> <831sih23rh.fsf@gnu.org> <5A663490.3050409@gmx.at> <87r2qh5lya.fsf@gmail.com> <83po60zgyf.fsf@gnu.org> <877es8cxmv.fsf@gmail.com> <83fu6wo5bd.fsf@gnu.org> <83d120o37w.fsf@gnu.org> <5A6782B8.7000809@gmx.at> <837es8nykp.fsf@gnu.org> <5A684619.9090904@gmx.at> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1516821016 29492 195.159.176.226 (24 Jan 2018 19:10:16 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 24 Jan 2018 19:10:16 +0000 (UTC) Cc: m.sujith@gmail.com, 30182@debbugs.gnu.org To: martin rudalics Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jan 24 20:10:11 2018 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 1eeQQy-0007CN-Ls for geb-bug-gnu-emacs@m.gmane.org; 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Wed, 24 Jan 2018 14:12:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 24 Jan 2018 19:12:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 30182 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 30182-submit@debbugs.gnu.org id=B30182.151682107024302 (code B ref 30182); Wed, 24 Jan 2018 19:12:02 +0000 Original-Received: (at 30182) by debbugs.gnu.org; 24 Jan 2018 19:11:10 +0000 Original-Received: from localhost ([127.0.0.1]:41275 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eeQRy-0006Jt-Jx for submit@debbugs.gnu.org; Wed, 24 Jan 2018 14:11:10 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:57644) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eeQRv-0006Jg-S0 for 30182@debbugs.gnu.org; Wed, 24 Jan 2018 14:11:08 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eeQRn-00066f-FJ for 30182@debbugs.gnu.org; Wed, 24 Jan 2018 14:11:02 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:53514) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eeQRn-00066Q-Bq; Wed, 24 Jan 2018 14:10:59 -0500 Original-Received: from [176.228.60.248] (port=3025 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1eeQRm-0002dl-I0; Wed, 24 Jan 2018 14:10:59 -0500 In-reply-to: <5A684619.9090904@gmx.at> (message from martin rudalics on Wed, 24 Jan 2018 09:38:49 +0100) 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:142470 Archived-At: > Date: Wed, 24 Jan 2018 09:38:49 +0100 > From: martin rudalics > CC: m.sujith@gmail.com, 30182@debbugs.gnu.org > > I asked the OP to > > Just to eliminate one possible cause: Does the bug disappear when you > customize `mode-line-default-help-echo' to the default value of the > 'string' alternative? > > and he answered that > > Yes, if that is done, then the crash doesn't happen. OK, thanks. > > So if using a string instead of a function the returns a string solves > > the problem, then I guess we should try and understand why a function > > causes the problem. > > Apparently because evaluating that function creates a timer. You mean, mode-line-default-help-echo creates a timer? If it does, I don't see where it does that. > w3m.el, when creating a buffer for its purposes, does > > (setq mode-line-buffer-identification > `( > [...] > (w3m-current-process > "Loading..." ,(if (fboundp 'format-mode-line) > '(:eval (w3m-modeline-title)) > > where the latter contains > > (defun w3m-modeline-title () > [...] > (condition-case nil > (format-mode-line mode-line-format 1) > (error ""))) > [...] > (run-at-time 0.5 nil > (lambda (buffer) > (when (buffer-live-p buffer) > (with-current-buffer buffer > (setq w3m-modeline-title-timer nil)))) > (current-buffer))))))) > > > But I haven't been able yet to trigger the crash from here. What I don't understand is how is the above :eval form related to mode-line-default-help-echo. They are both properties of parts of the mode line, but how is that relevant to the issue at hand?