xml4r/libxml-ruby — pull request #61 by ender672 (2013-05-03 05:57:04+00:00)
Title: Fix potential segfault when GC occurs while creating ns from xpath

rxml_xpath_object_wrap() was creating a Ruby array and it looks like
Ruby's garbage collection was unable to find it on the stack.

The segfault triggers consistently for me with ruby 1.9.3-p392