Adventures with threadDelay Mac OS X

Johan Tibell johan.tibell at
Sun Feb 13 21:18:02 CET 2011

On Sun, Feb 13, 2011 at 11:27 AM, Pavel Perikov <perikov at> wrote:
> hi list.
> I tried to build myself 64-bit compiler under mac os x. I started with the distribution of 7.0.1 provided by Gregory Wright. It installed and worked fine but 7.0.1 has some known bugs so I moved on to later snapshots.
> Unfortunately all the versions I tried had weird threadDelay behavior (64-bit, Mac OS X)
> 7.1.20110131 DEVELOPMENT - threadDelay returns immediately
> STABLE branch
>, - threadDelay hangs forever
> I tried searching trac quickly but did not found anything relevant.
> Is this a known problem?
> just to add some fun - i noticed the problem because when working in agda Auto prover hanged instead of answering "No solution found (5s)" :)

Could you create a small reproducible test case and file a bug against GHC?


-- Johan

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