Just started getting this, every time I run rake features: myapp/vendor/rails/actionpack/lib/action_controller/vendor/rack-1.0/ rack/lint.rb:16: [BUG] Segmentation fault ruby 1.8.6 (2008-03-03) [i686-darwin9.2.2] after updating from cucumber 0.3.0 to 0.3.2 I''m now getting the segfault here: myapp/vendor/gems/nokogiri-1.2.3/lib/nokogiri/xml/node_set.rb:138: [BUG] Segmentation fault ruby 1.8.6 (2008-03-03) [i686-darwin9.2.2] While trying to ascertain a cause, I discovered something weird. It seems to be related to the number of scenarios I''m running. I had 11 scenarios, and I was getting the error every time. I tried to isolate a cause, but the bug would not happen for any individual scenario. I thought maybe there''s some combination effect, so I started grouping them. I can get the error to happen about 50% of the time if I have 3 or 4 scenarios (10-12 steps) It happens 100% of the time with more than 6 scenarios. It happens 0% with any of the individual scenarios. any ideas how to debug this?