[project @ 2005-04-25 15:36:28 by simonmar]

[project @ 2005-04-25 15:36:28 by simonmar]
Partial support for deadlock detection in the threaded/SMP RTS.

The idea is to wait until a complete time slice has gone by without
running any Haskell code, and then try doing a GC to detect deadlocked
threads.

This kind of works: but we can only wake up a worker thread from the
signal handler if there's another worker running - we can't wake up the
current thread, it seems.