Alex Fenton wrote:
>> We know the Rails issue (and solved), but could you elaborate on
>> issues with wxRuby and SWIG?
> 
> http://sourceforge.net/tracker2/?func=detail&aid=2034216&group_id=1645&atid=101645

This is not our fault.  Please hold on and think yourself.  GC is running means
  ruby interpreter is running out of memory.  It is as clear as day that object
allocation during GC is not doable, because we do not have any memory space.

So SWIG had a bug. 1.8.7 helped to find it out.