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

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From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
To: Phil Sainty <psainty <at> orcon.net.nz>
Cc: 59038 <at> debbugs.gnu.org, acm <at> muc.de, Gregory Heytings <gregory <at> heytings.org>, Eli Zaretskii <eliz <at> gnu.org>, checker <at> d6.com
Subject: bug#59038: loading this base64 file makes emacs -Q 28.2 peg a core infinitely
Date: Sun, 06 Nov 2022 06:20:17 +0100

Phil Sainty <psainty <at> orcon.net.nz> writes:

> On 2022-11-06 12:41, Gregory Heytings wrote:
>> That file opens just fine in other modes
>
> It also opens fine in c-mode, with global-font-lock-mode disabled.
>
>> Note that this bug has nothing to do with long lines.
>
> I imagine that the font-lock issue is related to the line being
> in excess of 21,000 chars (but general redisplay obviously doesn't
> have problems with lines this 'small').
>
> Reduced to 10,208 chars that file opens instantly under emacs -Q
> in c-mode with font-lock enabled; but at 10,209 chars it hangs
> Emacs (I killed it after waiting 4 minutes).

It could also be that this is not something with the position of size,
but with what's there at or around that position.  Just an idea.

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