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Bug has been caught in Nokogiri::HTML::ElementDescription#default_sub_element #917

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aruprakshit opened this issue Jun 6, 2013 · 4 comments
Closed

Bug has been caught in Nokogiri::HTML::ElementDescription#default_sub_element #917

aruprakshit opened this issue Jun 6, 2013 · 4 comments

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@aruprakshit
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Here is a bug I found in the method Nokogiri::HTML::ElementDescription#default_sub_element.

doc = Nokogiri::HTML(<<-EOF) 
<a class = "foo" href = "https://example.com"> Click here </a>
EOF

node = Nokogiri::XML::Node.new("p", doc) 
node.content = "Welcome to Nokogiri"
node.description.deprecated? # => false
node.description.default_sub_element # => 
# ~> -:108: [BUG] Segmentation fault
# ~> ruby 2.0.0p0 (2013-02-24 revision 39474) [i686-linux]
# ~> 
# ~> -- Control frame information -----------------------------------------------
# ~> c:0003 p:---- s:0011 e:000010 CFUNC  :default_sub_element
# ~> c:0002 p:1919 s:0008 E:000e5c EVAL   -:108 [FINISH]
# ~> c:0001 p:0000 s:0002 E:000e64 TOP    [FINISH]
# ~> 
# ~> -:108:in `<main>'
# ~> -:108:in `default_sub_element'
# ~> 
# ~> -- C level backtrace information -------------------------------------------
# ~> mmap: No such device
# ~> mmap: No such device
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(+0x1aded0) [0xb76efed0] vm_dump.c:647
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(+0x5bd8d) [0xb759dd8d] error.c:283
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(rb_bug+0x40) [0xb759ead0] error.c:302
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(+0x12ea14) [0xb7670a14] signal.c:649
# ~> [0xb77c640c]
# ~> /lib/i386-linux-gnu/libc.so.6(+0x851a6) [0xb74001a6]
# ~> /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/nokogiri.so(+0xbd63) [0xb7048d63] html_element_description.c:89
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(+0x19497e) [0xb76d697e] vm_insnhelper.c:1300
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(+0x197d1c) [0xb76d9d1c] vm_insnhelper.c:1438
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(+0x1a5abf) [0xb76e7abf] vm_insnhelper.c:1528
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(+0x19ca1b) [0xb76dea1b] insns.def:1017
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(+0x1a12f3) [0xb76e32f3] vm.c:1175
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(rb_iseq_eval_main+0x156) [0xb76e9d86] vm.c:1423
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(+0x629ac) [0xb75a49ac] eval.c:250
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(ruby_exec_node+0x24) [0xb75a6064] eval.c:315
# ~> /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(ruby_run_node+0x36) [0xb75a8026] eval.c:307
# ~> ruby() [0x80486a8]
# ~> /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0xb7394935]
# ~> ruby() [0x80486d1]
# ~> 
# ~> -- Other runtime information -----------------------------------------------
# ~> 
# ~> * Loaded script: -
# ~> 
# ~> * Loaded features:
# ~> 
# ~>     0 enumerator.so
# ~>     1 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/enc/encdb.so
# ~>     2 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/enc/trans/transdb.so
# ~>     3 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/rbconfig.rb
# ~>     4 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/compatibility.rb
# ~>     5 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/defaults.rb
# ~>     6 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/deprecate.rb
# ~>     7 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/errors.rb
# ~>     8 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/version.rb
# ~>     9 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/requirement.rb
# ~>    10 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/platform.rb
# ~>    11 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb
# ~>    12 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/exceptions.rb
# ~>    13 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_gem.rb
# ~>    14 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb
# ~>    15 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems.rb
# ~>    16 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/path_support.rb
# ~>    17 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/dependency.rb
# ~>    18 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/nokogiri.so
# ~>    19 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/version.rb
# ~>    20 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/syntax_error.rb
# ~>    21 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/pp/node.rb
# ~>    22 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/pp/character_data.rb
# ~>    23 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/pp.rb
# ~>    24 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/parse_options.rb
# ~>    25 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/sax/document.rb
# ~>    26 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/sax/parser_context.rb
# ~>    27 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/sax/parser.rb
# ~>    28 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/sax/push_parser.rb
# ~>    29 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/sax.rb
# ~>    30 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/stringio.so
# ~>    31 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/node/save_options.rb
# ~>    32 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/node.rb
# ~>    33 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/attribute_decl.rb
# ~>    34 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/element_decl.rb
# ~>    35 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/element_content.rb
# ~>    36 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/character_data.rb
# ~>    37 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/namespace.rb
# ~>    38 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/attr.rb
# ~>    39 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/dtd.rb
# ~>    40 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/cdata.rb
# ~>    41 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/text.rb
# ~>    42 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/document.rb
# ~>    43 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/document_fragment.rb
# ~>    44 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/processing_instruction.rb
# ~>    45 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/node_set.rb
# ~>    46 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/syntax_error.rb
# ~>    47 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/xpath/syntax_error.rb
# ~>    48 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/xpath.rb
# ~>    49 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/xpath_context.rb
# ~>    50 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/builder.rb
# ~>    51 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/reader.rb
# ~>    52 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/notation.rb
# ~>    53 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/entity_decl.rb
# ~>    54 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/schema.rb
# ~>    55 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml/relax_ng.rb
# ~>    56 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xml.rb
# ~>    57 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xslt/stylesheet.rb
# ~>    58 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/xslt.rb
# ~>    59 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/html/entity_lookup.rb
# ~>    60 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/html/document.rb
# ~>    61 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/html/document_fragment.rb
# ~>    62 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/html/sax/parser_context.rb
# ~>    63 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/html/sax/parser.rb
# ~>    64 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/html/sax/push_parser.rb
# ~>    65 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/html/element_description.rb
# ~>    66 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/html/element_description_defaults.rb
# ~>    67 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/html.rb
# ~>    68 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/decorators/slop.rb
# ~>    69 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/css/node.rb
# ~>    70 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/css/xpath_visitor.rb
# ~>    71 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/racc/cparse.so
# ~>    72 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/racc/parser.rb
# ~>    73 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/thread.rb
# ~>    74 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/css/parser_extras.rb
# ~>    75 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/css/parser.rb
# ~>    76 /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/strscan.so
# ~>    77 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/css/tokenizer.rb
# ~>    78 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/css/syntax_error.rb
# ~>    79 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/css.rb
# ~>    80 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/html/builder.rb
# ~>    81 /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri.rb
# ~> 
# ~> * Process memory map:
# ~> 
# ~> 08048000-08049000 r-xp 00000000 08:05 6559889    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/bin/ruby
# ~> 08049000-0804a000 r--p 00000000 08:05 6559889    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/bin/ruby
# ~> 0804a000-0804b000 rw-p 00001000 08:05 6559889    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/bin/ruby
# ~> 0847a000-08807000 rw-p 00000000 00:00 0          [heap]
# ~> b6e41000-b6e5c000 r-xp 00000000 08:05 2229086    /lib/i386-linux-gnu/libgcc_s.so.1
# ~> b6e5c000-b6e5d000 r--p 0001a000 08:05 2229086    /lib/i386-linux-gnu/libgcc_s.so.1
# ~> b6e5d000-b6e5e000 rw-p 0001b000 08:05 2229086    /lib/i386-linux-gnu/libgcc_s.so.1
# ~> b6e72000-b6e89000 r-xp 00000000 08:05 2229214    /lib/i386-linux-gnu/libz.so.1.2.7
# ~> b6e89000-b6e8a000 r--p 00016000 08:05 2229214    /lib/i386-linux-gnu/libz.so.1.2.7
# ~> b6e8a000-b6e8b000 rw-p 00017000 08:05 2229214    /lib/i386-linux-gnu/libz.so.1.2.7
# ~> b6e8f000-b6e94000 r-xp 00000000 08:05 6560725    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/strscan.so
# ~> b6e94000-b6e95000 r--p 00004000 08:05 6560725    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/strscan.so
# ~> b6e95000-b6e96000 rw-p 00005000 08:05 6560725    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/strscan.so
# ~> b6e96000-b6e9d000 r-xp 00000000 08:05 6560731    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/stringio.so
# ~> b6e9d000-b6e9e000 r--p 00006000 08:05 6560731    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/stringio.so
# ~> b6e9e000-b6e9f000 rw-p 00007000 08:05 6560731    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/stringio.so
# ~> b6e9f000-b6eda000 r-xp 00000000 08:05 6697804    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/ports/i686-linux-gnu/libxslt/1.1.26/lib/libxslt.so.1.1.26
# ~> b6eda000-b6edb000 r--p 0003a000 08:05 6697804    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/ports/i686-linux-gnu/libxslt/1.1.26/lib/libxslt.so.1.1.26
# ~> b6edb000-b6edc000 rw-p 0003b000 08:05 6697804    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/ports/i686-linux-gnu/libxslt/1.1.26/lib/libxslt.so.1.1.26
# ~> b6edc000-b6eee000 r-xp 00000000 08:05 6697837    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/ports/i686-linux-gnu/libxslt/1.1.26/lib/libexslt.so.0.8.15
# ~> b6eee000-b6eef000 r--p 00011000 08:05 6697837    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/ports/i686-linux-gnu/libxslt/1.1.26/lib/libexslt.so.0.8.15
# ~> b6eef000-b6ef0000 rw-p 00012000 08:05 6697837    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/ports/i686-linux-gnu/libxslt/1.1.26/lib/libexslt.so.0.8.15
# ~> b6ef0000-b7037000 r-xp 00000000 08:05 6695250    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/ports/i686-linux-gnu/libxml2/2.8.0/lib/libxml2.so.2.8.0
# ~> b7037000-b703b000 r--p 00147000 08:05 6695250    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/ports/i686-linux-gnu/libxml2/2.8.0/lib/libxml2.so.2.8.0
# ~> b703b000-b703c000 rw-p 0014b000 08:05 6695250    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/ports/i686-linux-gnu/libxml2/2.8.0/lib/libxml2.so.2.8.0
# ~> b703c000-b703d000 rw-p 00000000 00:00 0 
# ~> b703d000-b7057000 r-xp 00000000 08:05 6569834    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/nokogiri.so
# ~> b7057000-b7058000 r--p 00019000 08:05 6569834    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/nokogiri.so
# ~> b7058000-b7059000 rw-p 0001a000 08:05 6569834    /home/kirti/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0.rc1/lib/nokogiri/nokogiri.so
# ~> b7059000-b70da000 rw-p 00000000 00:00 0 
# ~> b70da000-b72da000 r--p 00000000 08:05 1187734    /usr/lib/locale/locale-archive
# ~> b72da000-b72dc000 rw-p 00000000 00:00 0 
# ~> b72dc000-b731d000 r-xp 00000000 08:05 2229109    /lib/i386-linux-gnu/libm-2.17.so
# ~> b731d000-b731e000 r--p 00040000 08:05 2229109    /lib/i386-linux-gnu/libm-2.17.so
# ~> b731e000-b731f000 rw-p 00041000 08:05 2229109    /lib/i386-linux-gnu/libm-2.17.so
# ~> b731f000-b7328000 r-xp 00000000 08:05 2229069    /lib/i386-linux-gnu/libcrypt-2.17.so
# ~> b7328000-b7329000 r--p 00008000 08:05 2229069    /lib/i386-linux-gnu/libcrypt-2.17.so
# ~> b7329000-b732a000 rw-p 00009000 08:05 2229069    /lib/i386-linux-gnu/libcrypt-2.17.so
# ~> b732a000-b7351000 rw-p 00000000 00:00 0 
# ~> b7351000-b7354000 r-xp 00000000 08:05 2229076    /lib/i386-linux-gnu/libdl-2.17.so
# ~> b7354000-b7355000 r--p 00002000 08:05 2229076    /lib/i386-linux-gnu/libdl-2.17.so
# ~> b7355000-b7356000 rw-p 00003000 08:05 2229076    /lib/i386-linux-gnu/libdl-2.17.so
# ~> b7356000-b735d000 r-xp 00000000 08:05 2229181    /lib/i386-linux-gnu/librt-2.17.so
# ~> b735d000-b735e000 r--p 00006000 08:05 2229181    /lib/i386-linux-gnu/librt-2.17.so
# ~> b735e000-b735f000 rw-p 00007000 08:05 2229181    /lib/i386-linux-gnu/librt-2.17.so
# ~> b735f000-b7376000 r-xp 00000000 08:05 2229173    /lib/i386-linux-gnu/libpthread-2.17.so
# ~> b7376000-b7377000 r--p 00016000 08:05 2229173    /lib/i386-linux-gnu/libpthread-2.17.so
# ~> b7377000-b7378000 rw-p 00017000 08:05 2229173    /lib/i386-linux-gnu/libpthread-2.17.so
# ~> b7378000-b737b000 rw-p 00000000 00:00 0 
# ~> b737b000-b7528000 r-xp 00000000 08:05 2229061    /lib/i386-linux-gnu/libc-2.17.so
# ~> b7528000-b752a000 r--p 001ad000 08:05 2229061    /lib/i386-linux-gnu/libc-2.17.so
# ~> b752a000-b752b000 rw-p 001af000 08:05 2229061    /lib/i386-linux-gnu/libc-2.17.so
# ~> b752b000-b752f000 rw-p 00000000 00:00 0 
# ~> b752f000-b7533000 r-xp 00000000 08:05 6560730    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/racc/cparse.so
# ~> b7533000-b7534000 r--p 00003000 08:05 6560730    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/racc/cparse.so
# ~> b7534000-b7535000 rw-p 00004000 08:05 6560730    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/racc/cparse.so
# ~> b7535000-b7537000 r-xp 00000000 08:05 6560683    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/enc/trans/transdb.so
# ~> b7537000-b7538000 r--p 00001000 08:05 6560683    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/enc/trans/transdb.so
# ~> b7538000-b7539000 rw-p 00002000 08:05 6560683    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/enc/trans/transdb.so
# ~> b7539000-b753b000 r-xp 00000000 08:05 6560699    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/enc/encdb.so
# ~> b753b000-b753c000 r--p 00001000 08:05 6560699    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/enc/encdb.so
# ~> b753c000-b753d000 rw-p 00002000 08:05 6560699    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/i686-linux/enc/encdb.so
# ~> b753d000-b753e000 ---p 00000000 00:00 0 
# ~> b753e000-b7541000 rw-p 00000000 00:00 0          [stack:9042]
# ~> b7541000-b7542000 r--p 005db000 08:05 1187734    /usr/lib/locale/locale-archive
# ~> b7542000-b77ad000 r-xp 00000000 08:05 6559891    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0.0
# ~> b77ad000-b77b0000 r--p 0026a000 08:05 6559891    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0.0
# ~> b77b0000-b77b2000 rw-p 0026d000 08:05 6559891    /home/kirti/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0.0
# ~> b77b2000-b77c6000 rw-p 00000000 00:00 0 
# ~> b77c6000-b77c7000 r-xp 00000000 00:00 0          [vdso]
# ~> b77c7000-b77e7000 r-xp 00000000 08:05 2229037    /lib/i386-linux-gnu/ld-2.17.so
# ~> b77e7000-b77e8000 r--p 0001f000 08:05 2229037    /lib/i386-linux-gnu/ld-2.17.so
# ~> b77e8000-b77e9000 rw-p 00020000 08:05 2229037    /lib/i386-linux-gnu/ld-2.17.so
# ~> bfcdb000-bfcfc000 rw-p 00000000 00:00 0 
# ~> 
# ~> 
# ~> [NOTE]
# ~> You may have encountered a bug in the Ruby interpreter or extension libraries.
# ~> Bug reports are welcome.
# ~> For details: http://www.ruby-lang.org/bugreport.html
# ~>
@ender672
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ender672 commented Jun 6, 2013

Thanks for the straightforward script to trigger the issue!

@aruprakshit
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How should I update or install patch of the gem nokogiri you provided?

ender672 added a commit that referenced this issue Jun 7, 2013
@ender672 @flavorjones
Fix segfault when there is no default subelement for an HTML node.
e75ed1f 
Fixes #917

Conflicts:
	CHANGELOG.rdoc
@ender672
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ender672 commented Jun 8, 2013

It should be in the latest release.

@aruprakshit
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@ender672 I got stuck on some Nokogiri methods, would you help me personally for those. I was actually reading all the methods of Nokogiri and tried on my IRB.But some of them I couldn't figure out. Any help would you like to serve? then please drop me an email aruprakshit(at)rocketmail(dot)com.

galiminus pushed a commit to galiminus/nokogiri that referenced this issue Jun 24, 2013
@ender672
Fix segfault when there is no default subelement for an HTML node.
c3ecc20 
Fixes sparklemotion#917
galiminus pushed a commit to galiminus/nokogiri that referenced this issue Jun 24, 2013
@ender672
Fix segfault when there is no default subelement for an HTML node.
6f97107 
Fixes sparklemotion#917
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