It crashes quite rare, and I have no idea how to easy reproduce it.

Anyway, I'm a bit limited with bisect because of bug #50946 which was introduced in 71857d4106 (this summer) and fixed d3a832a61a (beggining of October).

-- 
wbr, Kirill

On 23. Oct 2021, at 21:50, Alan Third <alan@idiocy.org> wrote:

On Wed, Oct 20, 2021 at 10:34:23PM +0200, Kirill A. Korinsky via Bug reports for GNU Emacs, the Swiss army knife of text editors wrote:
Crash occurs disappear on last master.

But it crashed on master "month ago".

I'll updated this bug if emacs crashes again.

So we've, possibly inadvertently, fixed it on master, but not
emacs-28...

Since I can't replicate this I'm afraid all I can suggest is that you
do a git bisect and try to find the commit that fixes it on the master
branch.

It could be extremely time consuming.
--
Alan Third