I just put out a new release which fixes the terrors of the
last release. Hopefully this is more stable.
I found a bug in strace which caused repeated SIGSEGVs in one
of the tests (strace fails to trace a process it is launching
in about 1:100 test cases), even without dtrace active at the time.
I havent integrated in the fast-teardown/xcall optimisation yet,
as I need to tidy that up. Hopefully in the next release.