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From: Lars Ingebrigtsen <larsi@gnus.org>
To: Paul Pogonyshev <pogonyshev@gmail.com>
Cc: 57804@debbugs.gnu.org
Subject: bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely
Date: Wed, 14 Sep 2022 19:25:49 +0200	[thread overview]
Message-ID: <8735ct6f6q.fsf@gnus.org> (raw)
In-Reply-To: <CAG7Bpap_fYE9uAVSRSb9PvUQ24iMPP6kENetqtiXuRr4iRZsTA@mail.gmail.com> (Paul Pogonyshev's message of "Wed, 14 Sep 2022 18:57:23 +0200")

Paul Pogonyshev <pogonyshev@gmail.com> writes:

>> For instance, if the user hits `C-g' three times (and Emacs doesn't idle
>> in between), then we disable font-lock in that buffer.
>
> That sounds much better. I know that `C-g' is what to press when Emacs
> is stuck.

A single `C-g' wouldn't be quite the right thing, because the user may
hit `C-g' by accident while font-lock happens to run (and it's not
hanging), which is why I though a special key sequence like `C-g C-g
C-g' might make sense.

>> There's also `max-redisplay-ticks' -- but I'm not sure that would have
>> helped here?
>
> If I add `(setf max-redisplay-ticks 100)' right after entering
> `buggy-mode', it seems to have some effect, but not exactly what I'd
> hope on. I suggest you try and see for yourself, hard to describe
> them.

Doesn't seem to have any effect here...





  reply	other threads:[~2022-09-14 17:25 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 [this message]
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
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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