Re: Lots of hangs Windows 10 26.0.91

[Phillip Lord]

Adam Taylor <mr.adtaylor@gmail.com> writes:

> I'm looking for ideas on how to debug a fairly common hang I'm getting
> while running emacs 26.0.91 under Windows 10 (I know, that's my first
> problem).

It's a supported platform, so it's reasonable to complain!

> I've been using mostly magit and elpy (python-mode) stuff when it happens.
> I use desktop-save-mode which I suspected was the culprit until I turned it
> off and the problem still happened.
>
> What happens is that emacs starts to consume 30-40% of the cpu and starts
> to eat memory at a good clip eventually causing my machine to start to page.
>
> C-g does not work. I have to kill emacs from the task manager.

This is clearly a bug -- C-g should always work.

>
> It does not seem to be linked to any particular action I make - sometimes
> I'm just editing the python, sometimes I'm updating the magit status
> window. No rhyme or reason that I can divine.
>
> My guess is some issue in communicating with a subprocess (magit and elpy
> both work with subprocesses).
>
> I seem to remember some chatter about subprocess problems in the emacs
> developer mailing list and wasn't sure if this was the same issue.
>
> I would like to debug this, but since I didn't build the windows emacs, it
> might be really hard to connect it to gdb and see where it has gone south.
>
> Any help/pointers is greatly appreciated.

I'd ask on the devel mailing list, especially as the release candidate
is around the corner.

Phil