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#26980: 25.2; Freeze & redisplay_internal & macOS Date: Tue, 30 May 2017 10:46:29 +0300 Message-ID: <83r2z6eqi2.fsf@gnu.org> References: <299A4BDA-DCE3-4561-8841-468EA6FD655C@me.com> <831srm5hsw.fsf@gnu.org> <0611DC19-E5C5-47EA-9811-AD49918CE8CB@me.com> <83tw4h2iv6.fsf@gnu.org> <917A82E1-AF99-41AB-9A4B-078ACF24571C@me.com> <0092E07C-A513-43E1-A6A3-9B698E966624@me.com> <93D9DA56-E3E1-4214-B812-67F1A2895F02@me.com> <83vaoniesg.fsf@gnu.org> <50F68F81-7F8E-40DE-A5D4-D1B7A579D878@me.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: blaine.gmane.org 1496130435 21933 195.159.176.226 (30 May 2017 07:47:15 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 30 May 2017 07:47:15 +0000 (UTC) Cc: alan@idiocy.org, 26980@debbugs.gnu.org To: Robert Vojta Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue May 30 09:47:06 2017 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 1dFbrt-0005N9-Hl for geb-bug-gnu-emacs@m.gmane.org; Tue, 30 May 2017 09:47:05 +0200 Original-Received: from localhost ([::1]:51977 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dFbry-00024a-TZ for geb-bug-gnu-emacs@m.gmane.org; Tue, 30 May 2017 03:47:10 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40854) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dFbrs-00024V-MZ for bug-gnu-emacs@gnu.org; Tue, 30 May 2017 03:47:05 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dFbrr-0006Xw-Ef for bug-gnu-emacs@gnu.org; Tue, 30 May 2017 03:47:04 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:41419) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dFbrr-0006XN-AZ for bug-gnu-emacs@gnu.org; Tue, 30 May 2017 03:47:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1dFbrq-000150-9B for bug-gnu-emacs@gnu.org; Tue, 30 May 2017 03:47:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 30 May 2017 07:47:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 26980 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 26980-submit@debbugs.gnu.org id=B26980.14961303944111 (code B ref 26980); Tue, 30 May 2017 07:47:02 +0000 Original-Received: (at 26980) by debbugs.gnu.org; 30 May 2017 07:46:34 +0000 Original-Received: from localhost ([127.0.0.1]:44096 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dFbrO-00014F-Hb for submit@debbugs.gnu.org; Tue, 30 May 2017 03:46:34 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:49788) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dFbrM-000141-DY for 26980@debbugs.gnu.org; Tue, 30 May 2017 03:46:32 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dFbrD-0006A9-Cl for 26980@debbugs.gnu.org; Tue, 30 May 2017 03:46:27 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:44376) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dFbrD-0006A5-8m; Tue, 30 May 2017 03:46:23 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:1783 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1dFbrC-0001z5-Fj; Tue, 30 May 2017 03:46:22 -0400 In-reply-to: <50F68F81-7F8E-40DE-A5D4-D1B7A579D878@me.com> (message from Robert Vojta on Mon, 29 May 2017 11:37:42 +0200) 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:133042 Archived-At: > From: Robert Vojta > Date: Mon, 29 May 2017 11:37:42 +0200 > Cc: alan@idiocy.org, 26980@debbugs.gnu.org > > It’s caused by unicode character number 9448 (ⓨ). In 99% of cases, ascent of this character is 16, descent is 4, thus the sum is 20 and it equals to desired mode line height (20). Works like a charm. > > What troubles me is that sometimes the descent is 5. Sometimes means it’s totally random. For the whole week, it’s always 4, works. And boom, it’s 5 -> 16 + 5 -> 21 -> 21 != 20 and never ending loop is here. Can you see if those instances with descent of 5 are because the character is displayed using a different font, by any chance? Another, perhaps more probable cause could be that in some cases CURRENT_MODE_LINE_HEIGHT uses the value of w->mode_line_height, and sometimes it needs to estimate the height by calling estimate_mode_line_height. Maybe something is inconsistent between the estimation and the actual value. Also, the offending character is displayed on the mode line, right? Could you please show a screenshot of a window with the mode line formatted as it should when Emacs freezes? Thanks.