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