GNU bug report logs - #59038
loading this base64 file makes emacs -Q 28.2 peg a core infinitely

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Package: emacs;

Reported by: Chris Hecker <checker <at> d6.com>

Date: Sat, 5 Nov 2022 02:49:01 UTC

Severity: normal

Done: Alan Mackenzie <acm <at> muc.de>

Bug is archived. No further changes may be made.

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Message #17 received at 59038 <at> debbugs.gnu.org (full text, mbox):

From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 59038 <at> debbugs.gnu.org, acm <at> muc.de, checker <at> d6.com
Subject: Re: bug#59038: loading this base64 file makes emacs -Q 28.2 peg a
 core infinitely
Date: Sat, 5 Nov 2022 08:50:33 +0100

On 05.11.22 08:01, Eli Zaretskii wrote:
> What is reproducible, exactly?  

I don't understand.  The infinite loop is reproducible, "pegging one
core" as he expressed it, using up one CPU core.

> Visiting the file is almost
> instantaneous here, in Emacs 29.  What did you do to get Emacs into an
> infloop?

Maybe I switched applications with Cmd-TAB, or something else triggering
redisplay.  Do a M-x or C-l.

> It is IMO unreasonable to expect CC Mode to do something sensible with
> random sequence of characters that don't resemble C in any way.

I think no-one expects that.  The bug is the uninterruptable loop or 
whatever causes it.
This bug report was last modified 2 years and 198 days ago.

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