GNU bug report logs - #79014
31.0.50; igc: infinite loop

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From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
To: 79014 <at> debbugs.gnu.org
Cc: oscarfv <at> eclipso.eu
Subject: bug#79014: 31.0.50; igc: infinite loop
Date: Mon, 14 Jul 2025 15:50:58 +0200

[Message part 1 (text/plain, inline)]

Óscar Fuentes via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs <at> gnu.org> writes:

> On a long-lived emacs session (two weeks of intensive use), while
> reverting a versioned file with C-x v u (something that I did multiple
> times before on the same session) Emacs entered an infinite loop using
> 100% CPU, ignoring C-g and SIGUSR2 and had to be killed eventually after
> attaching gdb and obtaining the backtraces below.

Thanks. That's a recursive call to igc_on_idle from Lisp being called
whle it is running. Looks like something like this is needed:

[on_idle.diff (text/x-patch, attachment)]

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