We have released another version of DTrace, 0.3.2. This has minor differences from the previous one, 0.3.1.
New features are: Kernel symbol lookup now works: stack() now prints symbols, as does & of kernel symbols.
As usual it's available on ULN.
Kernel code and other portions are available on https://oss.oracle.com/projects/DTrace/
Note that we also now have some documentation here: