Creating instance of XML::Comment with an element segfaults MRI but works fine on JRuby

[yorickpeterse]

Consider the following script:

require 'nokogiri'

document = Nokogiri::XML('<a></a>')
a_node   = document.at('a')

p Nokogiri::XML::Comment.new(a_node, 'foo')

On MRI this segfaults the process, on JRuby this appears to work fine:

#<Nokogiri::XML::Comment:0x9fe "foo">

I'm not sure if the usage of XML::Comment here is correct, but at least it shouldn't crash MRI.

[yorickpeterse]

Crash output (also contains GDB backtraces): https://gist.github.com/YorickPeterse/7a21392aed7cdd0391b0

[flavorjones]

Thanks for reporting. Will look into it.