From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#34179: 27.0.50; message hangs when buffer with process visible Date: Thu, 24 Jan 2019 21:21:48 +0200 Message-ID: <83ef917tf7.fsf@gnu.org> References: <87fttj4dgj.fsf@web.de> <83ef938hik.fsf@gnu.org> <874l9yp50z.fsf@web.de> <87y37anpoj.fsf@web.de> <83pnsm6rxs.fsf@gnu.org> <878szanlua.fsf@web.de> <8736pinlk4.fsf@web.de> <87womum615.fsf@web.de> <87r2d2m5jf.fsf@web.de> <5C49E24F.7080800@gmx.at> <87d0olncf4.fsf@web.de> <877eetnba1.fsf@web.de> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="263085"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 34179@debbugs.gnu.org To: Michael Heerdegen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Jan 24 20:34:11 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1gmklO-0016Ks-Nr for geb-bug-gnu-emacs@m.gmane.org; Thu, 24 Jan 2019 20:34:10 +0100 Original-Received: from localhost ([127.0.0.1]:59883 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gmklN-0002uN-8k for geb-bug-gnu-emacs@m.gmane.org; Thu, 24 Jan 2019 14:34:09 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:40600) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gmkl7-0002oC-IA for bug-gnu-emacs@gnu.org; Thu, 24 Jan 2019 14:33:54 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gmkac-00025s-F4 for bug-gnu-emacs@gnu.org; Thu, 24 Jan 2019 14:23:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:45020) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gmkac-00025l-Bx for bug-gnu-emacs@gnu.org; Thu, 24 Jan 2019 14:23:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1gmkac-00032e-6h for bug-gnu-emacs@gnu.org; Thu, 24 Jan 2019 14:23:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 24 Jan 2019 19:23:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 34179 X-GNU-PR-Package: emacs Original-Received: via spool by 34179-submit@debbugs.gnu.org id=B34179.154835772711589 (code B ref 34179); Thu, 24 Jan 2019 19:23:02 +0000 Original-Received: (at 34179) by debbugs.gnu.org; 24 Jan 2019 19:22:07 +0000 Original-Received: from localhost ([127.0.0.1]:44297 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gmkZi-00030q-V3 for submit@debbugs.gnu.org; Thu, 24 Jan 2019 14:22:07 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:56664) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gmkZh-00030M-0j for 34179@debbugs.gnu.org; Thu, 24 Jan 2019 14:22:05 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:49825) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gmkZY-0001UE-Mh; Thu, 24 Jan 2019 14:21:58 -0500 Original-Received: from [176.228.60.248] (port=1083 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1gmkZY-0000l2-26; Thu, 24 Jan 2019 14:21:56 -0500 In-reply-to: <877eetnba1.fsf@web.de> (message from Michael Heerdegen on Thu, 24 Jan 2019 19:47:02 +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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:154749 Archived-At: > From: Michael Heerdegen > Cc: Eli Zaretskii , 34179@debbugs.gnu.org > Date: Thu, 24 Jan 2019 19:47:02 +0100 > > So, the recipe is: load the attached file, open a shell buffer (M-x > shell), and C-x 5 2. Also selecting a different frame works. > > M-: (fracy-display-frame-list) seems to already suffice as recipe. Thanks. This is an infloop in redisplay_internal, because each time we call run_window_change_functions, it causes windows_or_buffers_changed to be set to a non-zero value, and we then retry redisplay: if (!NILP (Vrun_hooks)) { run_window_change_functions (); /* If windows or buffers changed or selected_window changed, redisplay again. */ if ((windows_or_buffers_changed) || (WINDOWP (selected_window) && (w = XWINDOW (selected_window)) != sw)) goto retry; } Here's the Lisp backtrace: "select-window" (0x82a508) "window-max-chars-per-line" (0x82aae0) "window-adjust-process-window-size" (0x82b0a0) "window-adjust-process-window-size-smallest" (0x82b618) "window--adjust-process-windows" (0x82bbc0) "redisplay_internal (C function)" (0x0) "message" (0x82cdb0) "progn" (0x82cff8) "if" (0x82d198) "let*" (0x82d3c8) "catch" (0x82d608) "fracy-display-frame-list" (0x82d7c0) "if" (0x82dac8) "fracy-flash-window" (0x82dc80) "let" (0x82e018) "ad-Advice-handle-switch-frame" (0x82e4a0) "apply" (0x82e498) "handle-switch-frame" (0x82ebe0) "funcall-interactively" (0x82ebd8) "call-interactively" (0x82f030) "command-execute" (0x82f628) The C portion of the backtrace below selec t-window is this: #0 redisplay_other_windows () at xdisp.c:597 #1 0x010aa09e in select_window (window=XIL(0xa000000006919aa0), norecord=XIL(0x3d36a14), inhibit_point_swap=false) at window.c:540 #2 0x010aa62a in Fselect_window (window=XIL(0xa000000006919aa0), norecord=XIL(0x3d36a14)) at window.c:628 Should we perhaps not "goto retry" there?