GHC 7.8.3 thread hang

Gregory Collins greg at
Tue Nov 11 23:01:48 UTC 2014

On Tue, Nov 11, 2014 at 2:06 PM, Michael Jones <mike at> wrote:

> Those are all over the log even when it runs properly. So I assume the
> runtime is resizing the heap or something.

No, it means you're exhausting the heap (maybe the runtime stack for the
thread running "encode"), probably because "encode" is infinite-looping. I
think Occam's razor applies here, check that any recursion you're doing is
actually reducing the recursive argument. Perhaps you could post the code


Gregory Collins <greg at>
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