[racket] perpetual "Online expansion running"

From: Robby Findler (robby at eecs.northwestern.edu)
Date: Wed May 9 19:16:27 EDT 2012

It shouldn't give up and leave the little dot blue. Can you start up
DrRacket like this:

  racket -W info -l drracket

and see if you see anything useful in the output?


On Wed, May 9, 2012 at 6:11 PM, Neil Van Dyke <neil at neilvandyke.org> wrote:
> What does it mean if DrRacket's online Check Syntax indicator is blue, and
> the tooltip says "Online expansion running", but CPU is 0%.
> I can run the code.  I can leave DrRacket idle for a long time, but the
> indicator stays blue.  Disabling and then re-enabling online Check Syntax
> doesn't help.  Quitting and restarting DrRacket doesn't help.
> A wild guess is that Check Syntax is secretly giving up, due to the
> "require"s in this module (the size of the "require"-d stuff, or the
> complexity of the "require" graph).  There's not much crazy syntax
> transforming happening in the application code, if that matters.
> Neil V.
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