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

[Phil Sainty]

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).


-Phil