From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#39892: 28.0.50; Crash when running async command Date: Wed, 04 Mar 2020 18:13:38 +0200 Message-ID: <83imjkw11p.fsf@gnu.org> References: <877e00976m.fsf@gmail.com> Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="128401"; mail-complaints-to="usenet@ciao.gmane.io" Cc: ravine.var@gmail.com, 39892@debbugs.gnu.org To: Robert Pluim Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Mar 04 17:15:12 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 1j9Wfv-000XJm-Ts for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 04 Mar 2020 17:15:11 +0100 Original-Received: from localhost ([::1]:36314 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j9Wfu-0004Bm-M2 for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 04 Mar 2020 11:15:10 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55396) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j9Wfn-0004Be-Lj for bug-gnu-emacs@gnu.org; Wed, 04 Mar 2020 11:15:04 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j9Wfm-0004J7-EN for bug-gnu-emacs@gnu.org; Wed, 04 Mar 2020 11:15:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:35629) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1j9Wfm-0004I0-Ak for bug-gnu-emacs@gnu.org; Wed, 04 Mar 2020 11:15:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1j9Wfm-0005P6-6K for bug-gnu-emacs@gnu.org; Wed, 04 Mar 2020 11:15:02 -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, 04 Mar 2020 16:15:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 39892 X-GNU-PR-Package: emacs Original-Received: via spool by 39892-submit@debbugs.gnu.org id=B39892.158333844520694 (code B ref 39892); Wed, 04 Mar 2020 16:15:02 +0000 Original-Received: (at 39892) by debbugs.gnu.org; 4 Mar 2020 16:14:05 +0000 Original-Received: from localhost ([127.0.0.1]:41602 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1j9Wer-0005Nh-FP for submit@debbugs.gnu.org; Wed, 04 Mar 2020 11:14:05 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:39979) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1j9Weq-0005N7-4x for 39892@debbugs.gnu.org; Wed, 04 Mar 2020 11:14:04 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:53877) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1j9Wel-0002tO-1v; Wed, 04 Mar 2020 11:13:59 -0500 Original-Received: from [176.228.60.248] (port=3688 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1j9Wek-0000gm-CU; Wed, 04 Mar 2020 11:13:58 -0500 In-Reply-To: (message from Robert Pluim on Wed, 04 Mar 2020 11:01:57 +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: 209.51.188.43 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:176845 Archived-At: > From: Robert Pluim > Date: Wed, 04 Mar 2020 11:01:57 +0100 > Cc: 39892@debbugs.gnu.org > > Ravine> * Start 'emacs -Q' > > Ravine> * Eval this: (set-fontset-font t 'unicode "Noto Sans Symbols2" nil 'append) > > Ravine> * In dired, run dired-do-async-shell-command (&) on configure.gz.gpg and > Ravine> give 'gpg -d'. gpg now sends the decrypted output to stdout. > > Ravine> * At this point emacs crashes. > > Indeed. A simpler recipe is to do the set-fontset-font and then > > 'C-x 8 RET e9f8' In fact, _any_ font seems to cause that, as long as the other arguments of set-fontset-font are as above. > The relevant code is: > > for (i = 0; i < size; i++) > { > Lisp_Object rfont_def = AREF (vec, i); > Lisp_Object font_def = RFONT_DEF_FONT_DEF (rfont_def); > > 'vec' at that point is > > [ > [nil [# 144 nil] nil 0] > nil > [nil [# 0 0] nil 2] > ] > > and i == 1, so rfont_def ends up as nil. > > How did that 'nil' get in there? I don't know. The code seems to expect one nil as the last element of the vector, but not in the middle. Note that the commentary at the beginning of fontset.c explains when RFONT_DEF may be nil. I will look into this soon if no one beats me to it. Btw, U+E9F8 is a PUA character; how did it get into a context where we are trying to display it?