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From: Gregory Heytings <gregory@heytings.org>
To: Paul Pogonyshev <pogonyshev@gmail.com>
Cc: Lars Ingebrigtsen <larsi@gnus.org>, 57804@debbugs.gnu.org
Subject: bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely
Date: Thu, 15 Sep 2022 20:26:54 +0000	[thread overview]
Message-ID: <b24128855bd67c4b054f@heytings.org> (raw)
In-Reply-To: <CAG7BparY1wkR+xiHSwN_SUg2_9U6_eB012uFButnZ4dse9WamQ@mail.gmail.com>


> 
> How do I decide what is sufficiently large? With this optimization 
> Logview can fall into that infloop in fontification code, at which point 
> Emacs becomes completely frozen, with the only way out to restart it.
>

You just described what would happen without this optimization with a 
sufficiently long line.

>
> With long lines I can suffer slow and not-quite-responsive (but still 
> not hung to death) Emacs, which is much more bearable.
>

Obviously you did not have to deal with long enough lines.

> 
> For you this long-line optimization is probably very important, maybe 
> you often work with files that trigger this and make using Emacs a pain 
> without it.
>

It isn't for me personally, no.  It is important for Emacs users.





  reply	other threads:[~2022-09-15 20:26 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-14 15:05 bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely Paul Pogonyshev
2022-09-14 16:00 ` dick
2022-09-14 16:06   ` Paul Pogonyshev
2022-09-14 16:14 ` dick
2022-09-14 17:52   ` Lars Ingebrigtsen
2022-09-14 18:18     ` Eli Zaretskii
2022-09-14 16:41 ` Lars Ingebrigtsen
2022-09-14 16:57   ` Paul Pogonyshev
2022-09-14 17:25     ` Lars Ingebrigtsen
2022-09-14 17:30       ` Paul Pogonyshev
2022-09-14 17:43       ` Eli Zaretskii
2022-09-14 17:45         ` Lars Ingebrigtsen
2022-09-14 17:49           ` Eli Zaretskii
2022-09-15  2:17             ` Ihor Radchenko
2022-09-14 17:34     ` Gregory Heytings
2022-09-15 14:47       ` Paul Pogonyshev
2022-09-15 15:10         ` Gregory Heytings
2022-09-15 15:37           ` Paul Pogonyshev
2022-09-15 16:08             ` Gregory Heytings
2022-09-15 16:19               ` Paul Pogonyshev
2022-09-15 16:44                 ` Gregory Heytings
2022-09-15 18:49                   ` Paul Pogonyshev
2022-09-15 19:16                     ` Eli Zaretskii
2022-09-15 19:36                       ` Paul Pogonyshev
2022-09-15 19:45                         ` Eli Zaretskii
2022-09-15 20:18                         ` Gregory Heytings
2022-09-15 20:22                           ` Lars Ingebrigtsen
2022-09-15 20:40                           ` Paul Pogonyshev
2022-09-15 20:44                             ` Gregory Heytings
2022-09-15 21:17                               ` Paul Pogonyshev
2022-09-15 21:32                                 ` Gregory Heytings
2022-09-15 21:49                                   ` Paul Pogonyshev
2022-09-15 22:16                                     ` Gregory Heytings
2022-09-15 22:53                                       ` Paul Pogonyshev
2022-09-15 23:13                                         ` Gregory Heytings
2022-09-16  6:40                                         ` Eli Zaretskii
2022-09-16 10:08                                           ` Paul Pogonyshev
2022-09-16 10:44                                             ` Eli Zaretskii
2022-09-16  6:31                             ` Eli Zaretskii
     [not found]                               ` <1260fd38-d4b3-5ca1-5b15-78f59c0255b6@yandex.ru>
     [not found]                                 ` <83o7t9k8fr.fsf@gnu.org>
     [not found]                                   ` <CAG7Bpaow570a8Qrq6VxU+=MNF55UmnCMFFXT2Eg=vQUTgrxeoQ@mail.gmail.com>
     [not found]                                     ` <34e17bf2a6bdd269fba7@heytings.org>
     [not found]                                       ` <CAG7BpapFE0HEwi8iUoStz9EyAwH-QdZ_CxOUNtdUeKDmzCrZaQ@mail.gmail.com>
     [not found]                                         ` <338f50d421074805735f@heytings.org>
     [not found]                                           ` <831qpnngeg.fsf@gnu.org>
     [not found]                                             ` <338f50d421b672315145@heytings.org>
2022-11-28 18:32                                               ` Eli Zaretskii
2022-09-16  1:17                           ` Ihor Radchenko
2022-09-16  5:35                           ` Eli Zaretskii
2022-09-15 19:44                     ` Gregory Heytings
2022-09-15 20:07                       ` Paul Pogonyshev
2022-09-15 20:26                         ` Gregory Heytings [this message]
2022-09-16  5:37                           ` Eli Zaretskii
2022-09-15 22:20                       ` dick
2022-09-15 22:38                         ` Gregory Heytings
2022-09-16  6:19                         ` Eli Zaretskii
2022-09-16  7:44                         ` Gerd Möllmann
2022-09-14 17:02 ` Eli Zaretskii
2022-09-14 17:25   ` Paul Pogonyshev
2022-09-14 17:32     ` Eli Zaretskii
2022-09-14 17:38   ` Lars Ingebrigtsen
2022-09-14 17:44     ` Eli Zaretskii
2022-09-14 17:46       ` Lars Ingebrigtsen
2022-09-14 17:51         ` Eli Zaretskii
2022-09-15  5:20     ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-15  6:27       ` Eli Zaretskii

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