Re: Why does this thread code crash my emacs?

[Eli Zaretskii]

> Date: Fri, 15 Oct 2021 22:01:04 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: emacs-devel@gnu.org
> 
> You currently cannot signal a thread that is waiting for input (hanoi
> waits for input inside sit-for), because Emacs doesn't (yet) know how
> to recover from signals in that state.
> 
> IOW, this is a limitation of the current implementation that is more
> visible when signaling threads than when there's only one (main)
> thread.

I've now attempted to fix this on the emacs-28 branch.  Hopefully,
this won't have any adverse effects elsewhere, otherwise we'd have to
move this to master, and continue debugging that.