From: Eli Zaretskii <eliz@gnu.org>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: 26333@debbugs.gnu.org, steven@stebalien.com
Subject: bug#26333: 26.0.50; Hang when displaying some special characters for the first time
Date: Sun, 23 Jan 2022 18:44:59 +0200 [thread overview]
Message-ID: <83fspel7uc.fsf@gnu.org> (raw)
In-Reply-To: <87tudu77g4.fsf@gnus.org> (message from Lars Ingebrigtsen on Sun, 23 Jan 2022 17:17:15 +0100)
> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Sun, 23 Jan 2022 17:17:15 +0100
> Cc: 26333@debbugs.gnu.org
>
> Steven Allen <steven@stebalien.com> writes:
>
> > 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.
>
> (I'm going through old bug reports that unfortunately weren't resolved
> at the time.)
>
> I'm unable to reproduce this problem in Emacs 28, but then again, this
> problem seems to rely on a particular set of fonts being installed.
It could be that those 15 sec is what Emacs needs to search the
available fonts before it finds the one that can display the
character.
next prev parent reply other threads:[~2022-01-23 16:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-01 19:20 bug#26333: 26.0.50; Hang when displaying some special characters for the first time Steven Allen
2017-04-01 20:44 ` Eli Zaretskii
2017-04-01 22:00 ` Steven Allen
2017-04-01 22:48 ` Andreas Politz
2017-04-02 16:35 ` Eli Zaretskii
2017-04-02 17:14 ` Steven Allen
2017-04-02 17:43 ` Steven Allen
2022-01-23 16:17 ` Lars Ingebrigtsen
2022-01-23 16:44 ` Eli Zaretskii [this message]
2022-01-23 17:00 ` Eli Zaretskii
2022-02-20 19:32 ` Lars Ingebrigtsen
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