Re: Emacs locks up

[Eli Zaretskii]

> Date: Sat, 19 Jun 2021 14:15:22 -0700
> From: Joe Riel <joer@san.rr.com>
> 
> I've written a debugger controlled by Emacs.  It uses make-network-process
> to communicate with a client over TCP.  Works fine on linux and Windows.
> However, when running the client in Windows 10 in virtualbox, with Emacs
> running on the host system (linux), occasionally Emacs locks up.
> 
> When that occurs I have to kill Emacs---it is otherwise unresponsive.  
> Have no good idea how to fix or debug this.  Just being able to restore Emacs 
> without killing it would be useful.  Any suggestions are appreciated.

First, this is hardly the proper place for discussing bugs in Emacs.
I suggest to file a bug report with all the details, and discuss this
in the thread about the bug report.

And the first thing I'd do when Emacs hangs is attach a debugger to it
and see where it hangs and possibly also why.