From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.bugs Subject: bug#45277: D-Bus crashes and DND errors Date: Sat, 19 Dec 2020 22:23:10 +0200 Organization: LINKOV.NET Message-ID: <871rflo8cp.fsf@mail.linkov.net> References: <87zh2dijdl.fsf@mail.linkov.net> <874kkkz3a9.fsf@gmx.de> <87lfdwhzek.fsf@mail.linkov.net> <87pn37xvkv.fsf@gmx.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="12523"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (x86_64-pc-linux-gnu) Cc: 45277@debbugs.gnu.org To: Michael Albinus Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Dec 19 21:25:10 2020 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 1kqimr-000394-Qh for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 19 Dec 2020 21:25:09 +0100 Original-Received: from localhost ([::1]:35098 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kqimq-0003zR-Sn for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 19 Dec 2020 15:25:08 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:51502) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kqiln-0003n6-Me for bug-gnu-emacs@gnu.org; Sat, 19 Dec 2020 15:24:10 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:59915) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kqiln-00056q-1U for bug-gnu-emacs@gnu.org; Sat, 19 Dec 2020 15:24:03 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kqilm-0004BT-U3 for bug-gnu-emacs@gnu.org; Sat, 19 Dec 2020 15:24:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Juri Linkov Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 19 Dec 2020 20:24:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 45277 X-GNU-PR-Package: emacs Original-Received: via spool by 45277-submit@debbugs.gnu.org id=B45277.160840942116046 (code B ref 45277); Sat, 19 Dec 2020 20:24:02 +0000 Original-Received: (at 45277) by debbugs.gnu.org; 19 Dec 2020 20:23:41 +0000 Original-Received: from localhost ([127.0.0.1]:43227 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kqilR-0004Ak-42 for submit@debbugs.gnu.org; Sat, 19 Dec 2020 15:23:41 -0500 Original-Received: from relay1-d.mail.gandi.net ([217.70.183.193]:60473) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kqilK-0004A6-Pu for 45277@debbugs.gnu.org; Sat, 19 Dec 2020 15:23:36 -0500 X-Originating-IP: 91.129.99.98 Original-Received: from mail.gandi.net (m91-129-99-98.cust.tele2.ee [91.129.99.98]) (Authenticated sender: juri@linkov.net) by relay1-d.mail.gandi.net (Postfix) with ESMTPSA id 883D8240004; Sat, 19 Dec 2020 20:23:26 +0000 (UTC) In-Reply-To: <87pn37xvkv.fsf@gmx.de> (Michael Albinus's message of "Fri, 18 Dec 2020 11:22:24 +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:196425 Archived-At: >> Meanwhile, here is today's error (not crash): >> >> Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil) >> dbus-handle-event((dbus-event (- arg))) >> funcall-interactively(dbus-handle-event (dbus-event (- arg))) >> call-interactively(dbus-handle-event nil [(dbus-event (- arg))]) >> command-execute(dbus-handle-event nil [(dbus-event (- arg))] t) > > I'm completely lost. Where does this interactive call of > dbus-handle-event comes from? And where those strange arguments? Well, > there's a wannabe D-Bus event "(dbus-event (- arg))", but I have no > idea how it is composed. I don't know, it seems xd_retrieve_arg tries to decode received data, but when it receives garbage, then "Garbage In - Garbage Out". > Do you have a recipe how to provoke this error? Or could you bisect > Emacs git in order to find the change which has introduced the problem? These errors appear at the rate of one error per day, so no bisecting is possible in a reasonable time. Today dbus-handle-event signaled the error with a string of 6 random bytes, and not crashed, but I forgot to look at traces, so no luck this time.