Johannes Waldmann FbIMN wrote:
How can I get more information
if my ghc-compiled program halts with "<<loop>>"

There isn't a way to get more information right now. But <<loop>> is an exception (NonTermination), so you can catch it.

What kinds of cyclic dependencies
does the runtime system actually recognize?

The kind where a value depends on itself, also known as a blackhole.

Cheers,
        Simon
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