Segfault while using 0.6.2 with pygments.rb 0.2.13

[postmodern]

/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/rubypython-0.6.2/lib/rubypython/pyobject.rb:82: [BUG] Segmentation fault
ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-linux]

-- Control frame information -----------------------------------------------
c:0037 p:---- s:0162 b:0162 l:000161 d:000161 CFUNC  :PyObject_HasAttrString
c:0036 p:0024 s:0157 b:0157 l:000156 d:000156 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/rubypython-0.6.2/lib/rubypython/pyobject.rb:82
c:0035 p:0181 s:0153 b:0153 l:000152 d:000152 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/rubypython-0.6.2/lib/rubypython/rubypyproxy.rb:165
c:0034 p:---- s:0139 b:0139 l:000138 d:000138 FINISH
c:0033 p:0044 s:0137 b:0137 l:000136 d:000136 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/pygments.rb-0.2.13/lib/pygments/ffi.rb:120
c:0032 p:0182 s:0132 b:0132 l:000131 d:000131 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/pygments.rb-0.2.13/lib/pygments/ffi.rb:95
c:0031 p:0048 s:0121 b:0120 l:000119 d:000119 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/tags/highlight.rb:54
c:0030 p:0043 s:0114 b:0114 l:000113 d:000113 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/tags/highlight.rb:44
c:0029 p:0029 s:0110 b:0110 l:000100 d:000109 BLOCK  /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/liquid-2.3.0/lib/liquid/block.rb:94
c:0028 p:---- s:0106 b:0106 l:000105 d:000105 FINISH
c:0027 p:---- s:0104 b:0104 l:000103 d:000103 CFUNC  :collect
c:0026 p:0012 s:0101 b:0101 l:000100 d:000100 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/liquid-2.3.0/lib/liquid/block.rb:92
c:0025 p:0016 s:0096 b:0096 l:000095 d:000095 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/liquid-2.3.0/lib/liquid/block.rb:82
c:0024 p:0417 s:0092 b:0092 l:000091 d:000091 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/liquid-2.3.0/lib/liquid/template.rb:124
c:0023 p:0124 s:0085 b:0083 l:000082 d:000082 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/convertible.rb:79
c:0022 p:0053 s:0074 b:0074 l:000073 d:000073 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/page.rb:100
c:0021 p:0021 s:0068 b:0068 l:000059 d:000067 BLOCK  /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/site.rb:204
c:0020 p:---- s:0065 b:0065 l:000064 d:000064 FINISH
c:0019 p:---- s:0063 b:0063 l:000062 d:000062 CFUNC  :each
c:0018 p:0044 s:0060 b:0060 l:000059 d:000059 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/site.rb:203
c:0017 p:0041 s:0055 b:0055 l:000054 d:000054 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/site.rb:41
c:0016 p:0065 s:0052 b:0052 l:000f40 d:000051 BLOCK  /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/bin/jekyll:253
c:0015 p:---- s:0048 b:0048 l:000047 d:000047 FINISH
c:0014 p:---- s:0046 b:0046 l:000045 d:000045 CFUNC  :call
c:0013 p:0019 s:0042 b:0042 l:000032 d:000041 BLOCK  /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher.rb:580
c:0012 p:---- s:0038 b:0038 l:000037 d:000037 FINISH
c:0011 p:---- s:0036 b:0036 l:000035 d:000035 CFUNC  :each
c:0010 p:0013 s:0033 b:0033 l:000032 d:000032 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher.rb:579
c:0009 p:0012 s:0029 b:0029 l:0001a0 d:000028 BLOCK  /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher.rb:334
c:0008 p:---- s:0026 b:0026 l:000025 d:000025 FINISH
c:0007 p:---- s:0024 b:0024 l:000023 d:000023 CFUNC  :call
c:0006 p:0032 s:0020 b:0020 l:000019 d:000019 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher/scanner.rb:224
c:0005 p:0085 s:0017 b:0017 l:000016 d:000016 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher/scanner.rb:102
c:0004 p:0042 s:0012 b:0012 l:000011 d:000011 METHOD /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher/scanner.rb:150
c:0003 p:0013 s:0007 b:0007 l:001008 d:000006 BLOCK  /home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher/scanner.rb:45
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:---- s:0002 b:0002 l:000001 d:000001 TOP   

-- Ruby level backtrace information ----------------------------------------
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher/scanner.rb:45:in `block in start'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher/scanner.rb:150:in `run_loop'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher/scanner.rb:102:in `run_once'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher/scanner.rb:224:in `notify'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher/scanner.rb:224:in `call'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher.rb:334:in `block in initialize'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher.rb:579:in `notify_observers'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher.rb:579:in `each'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher.rb:580:in `block in notify_observers'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/directory_watcher-1.4.1/lib/directory_watcher.rb:580:in `call'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/bin/jekyll:253:in `block in '
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/site.rb:41:in `process'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/site.rb:203:in `render'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/site.rb:203:in `each'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/site.rb:204:in `block in render'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/page.rb:100:in `render'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/convertible.rb:79:in `do_layout'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/liquid-2.3.0/lib/liquid/template.rb:124:in `render'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/liquid-2.3.0/lib/liquid/block.rb:82:in `render'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/liquid-2.3.0/lib/liquid/block.rb:92:in `render_all'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/liquid-2.3.0/lib/liquid/block.rb:92:in `collect'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/liquid-2.3.0/lib/liquid/block.rb:94:in `block in render_all'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/tags/highlight.rb:44:in `render'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/jekyll-0.11.2/lib/jekyll/tags/highlight.rb:54:in `render_pygments'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/pygments.rb-0.2.13/lib/pygments/ffi.rb:95:in `highlight'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/pygments.rb-0.2.13/lib/pygments/ffi.rb:120:in `formatter_for'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/rubypython-0.6.2/lib/rubypython/rubypyproxy.rb:165:in `method_missing'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/rubypython-0.6.2/lib/rubypython/pyobject.rb:82:in `hasAttr'
/home/hal/.rvm/gems/ruby-1.9.3-p194/gems/rubypython-0.6.2/lib/rubypython/pyobject.rb:82:in `PyObject_HasAttrString'

-- C level backtrace information -------------------------------------------
Segmentation fault (core dumped)

[raineszm]

I've been working on this a bit in the little free time I have. The most likely culprit is a mistake in the reference counting of Python pointer, which also means the actual cause is quite difficult to track down.