bug#20074: edebug tracing can't be stopped with 'S'

[Eli Zaretskii]

> From: Alexis <flexibeast@gmail.com>
> Date: Fri, 13 Mar 2015 21:19:57 +1100
> 
> i'd be interested to know whether this behaviour is considered a 
> bug.

Yes, it's a bug (or maybe a long-missing feature: I'm not sure it has
ever worked as intended).

> When i see tight code loops like this, my first thought - 
> based on
> experience - is: "When is the rest of the system [in this 
> instance, the Emacs system] going to get a chance to do anything, 
> such as read and handle input events?"
> 
> Do Emacs devs feel that Emacs should still be reasonably 
> responsive in the face of such tight loops?

Where do you see a tight loop during Edebug tracing?