how to catch GHC "no threads to run" exception?

[Volker Stolz]

In local.haskell, you wrote:
> Since I have 3 threads waiting on takeMVar, do I have to wrap
> all of them with Exception.catch?

Yes. Especially since ghc-5.04, you cannot be sure which of the
blocked threads will get killed first:
http://haskell.org/pipermail/glasgow-haskell-users/2002-July/003779.html
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