RDT - RemoteTestRunner.rb:1: Bus Error

Anytime I debug a Ruby file in RDT I get this error:

ruby 1.8.4 debugger listens on port 49905
[BUG] Bus Error
ruby 1.8.4 (2005-12-24) [powerpc-darwin8.4.0]

This seems kind of strange to me. Also, I’ve installed ruby 1.8.2 in
another location, which I installed from a binary package; that
installation is able to debug fine. I haven’t really looked into this
much, but I’m just throwing this out here since it seems like a common
thing if someone isn’t using Apple’s Ruby installation.

I am using RDT (0.7) on Mac OS 10.4.5, but using Darwin Ports for Ruby
(1.8.4). My version of Eclipse is 3.1.2.

Hopefully someone can shed some light on this!