GNU bug report logs - #26333
26.0.50; Hang when displaying some special characters for the first time

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Package: emacs;

Reported by: Steven Allen <steven <at> stebalien.com>

Date: Sat, 1 Apr 2017 19:22:02 UTC

Severity: normal

Tags: moreinfo

Found in version 26.0.50

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

Full log

Message #8 received at 26333 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Steven Allen <steven <at> stebalien.com>
Cc: 26333 <at> debbugs.gnu.org
Subject: Re: bug#26333: 26.0.50;
 Hang when displaying some special characters for the first time
Date: Sat, 01 Apr 2017 23:44:58 +0300

> From: Steven Allen <steven <at> stebalien.com>
> Date: Sat, 01 Apr 2017 12:20:35 -0700
> 
> 
> 1. Start `emacs -Q` (GUI mode, GTK3).
> 2. Open a scratch buffer.
> 3. Insert a MATHMATICAL SANS-SERIF BOLD SMALL LAMBDA (0x1D77A): 𝝺
> 
> The first time this character is displayed, Emacs hangs for ~15 seconds
> pegging the CPU at 100%. Unfortunately, the profiler doesn't seem to
> notice/record this hang.

That's normal: Emacs is looking for a font that can display this
character.  If you install the Symbola font, I think the search will
be much faster.
This bug report was last modified 3 years and 94 days ago.

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