[racket-dev] What can cause "Interactions disabled"?

Was it black on yellow or red?

Robby


On Mon, Oct 7, 2013 at 10:32 AM, Neil Toronto <neil.toronto at gmail.com>wrote:

> I have a long-running random simulation that spits out debug messages. I
> extrapolated that it would take 20 hours to get 5,000,000 samples, and let
> it run for a day. Here's what I saw when I returned:
>
>
> Welcome to DrRacket, version 5.90.0.9--2013-10-04(876995d5/**d) [3m].
> Language: typed/racket [custom]; memory limit: 1024 MB.
> starting...
> sample-search-tree returned failure
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> i = 100
> refinement-sample-point returned #f
> refinement-sample-point returned #f
>
> [...]
>
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> i = 2605500
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
> refinement-sample-point returned #f
>
> Interactions disabled
> |
>
>       560157:0        720.77MB
>
>
> Fear my ASCII art status bar.
>
> "720.77MB" is what I got after clicking the GC indicator. (Before, it was
> about 300MB.) There were no command-line messages from DrRacket.
>
> I don't think this is an out-of-memory problem. DrRacket has been good
> about asking for more during other simulations, my limit is set to 1024MB,
> and I really doubt I'm allocating a 304MB temporary object.
>
> I wrote a small program to print 600000 debug messages, thinking it was a
> limit on the number of lines in the REPL, and it ran to completion.
>
> For full disclosure: I paused and restarted DrRacket from the command line
> (fg; ctrl-z; bg) a few times while the simulation was running, so I could
> use my laptop unplugged without draining the battery.
>
> Besides running out of memory, what else could cause a program to halt
> with "Interactions disabled", and how can I avoid it?
>
> Neil ⊥
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