Re: Hang when saving files

> From: John J. Xenakis <[email protected]>
> Date: Thu, 17 Dec 2015 16:48:55 -0500
> Cc: [email protected]
> 
> This comment reminds me that I used to have this problem when I was
> using a VPN to connect to a remote network.
> 
> I'm assuming that when you disconnect from the network, you still had
> a buffer referencing a file on the network.  So Emacs tries to
> determine whether the file has been updated, and gets hung until the
> disconnected network connection times out.

I think this issue might be described in etc/PROBLEMS; see the section
named "A few seconds delay is seen at startup and for many file
operations" there.