Issue #12720 has been reported by ajith kumar.

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Bug #12720: Ruby segmentation issue
https://bugs.ruby-lang.org/issues/12720

* Author: ajith kumar
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: 2.2.5
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
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=> Booting Thin => Rails 4.2.6 application starting in development on http://localhost:4000 => Run rails server -h for more startup options => Ctrl-C to shutdown server Thin web server (v1.7.0 codename Dunder Mifflin) Maximum connections set to 1024 Listening on localhost:4000, CTRL+C to stop /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/eventmachine-1.2.0.1/lib/eventmachine.rb:202: [BUG] Segmentation fault at 0x000000 ruby 2.2.5p319 (2016-04-26 revision 54774) [i686-linux]

-- Control frame information ----------------------------------------------- c:0016 p:---- s:0065 e:000064 CFUNC :release_machine c:0015 p:0032 s:0062 e:000061 RESCUE /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/eventmachine-1.2.0.1/lib/eventmachine.rb:202 c:0014 p:0360 s:0059 E:002114 METHOD /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/eventmachine-1.2.0.1/lib/eventmachine.rb:205 c:0013 p:0057 s:0052 E:001da8 METHOD /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/thin-1.7.0/lib/thin/backends/base.rb:73 c:0012 p:0111 s:0048 E:001a64 METHOD /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/thin-1.7.0/lib/thin/server.rb:162 c:0011 p:0176 s:0045 e:000044 METHOD /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/rack-1.6.4/lib/rack/handler/thin.rb:19 c:0010 p:0196 s:0034 E:001de0 METHOD /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/rack-1.6.4/lib/rack/server.rb:286 c:0009 p:0043 s:0028 E:0006ec METHOD /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/railties-4.2.6/lib/rails/comm
 ands/server.rb:80 c:0008 p:0044 s:0025 E:001c88 BLOCK /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:80 [FINISH] c:0007 p:---- s:0022 e:000021 CFUNC :tap c:0006 p:0031 s:0019 E:001c54 METHOD /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75 c:0005 p:0033 s:0016 E:001cc0 METHOD /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39 c:0004 p:0116 s:0012 E:001cfc TOP /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/railties-4.2.6/lib/rails/commands.rb:17 [FINISH] c:0003 p:---- s:0008 e:000007 CFUNC :require c:0002 p:0034 s:0004 E:0005ec EVAL bin/rails:4 [FINISH] c:0001 p:0000 s:0002 E:000844 TOP [FINISH]

-- Ruby level backtrace information ---------------------------------------- bin/rails:4:in <main>'
bin/rails:4:inrequire' /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/railties-4.2.6/lib/rails/commands.rb:17:in <top (required)>'
/home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:inrun_command!' /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in server'
/home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:intap' /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:80:in block in server'
/home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/railties-4.2.6/lib/rails/commands/server.rb:80:instart' /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/rack-1.6.4/lib/rack/server.rb:286:in start'
/home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/rack-1.6.4/lib/rack/handler/thin.rb:19:inrun' /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/thin-1.7.0/lib/thin/server.rb:162:in start'
/home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/thin-1.7.0/lib/thin/backends/base.rb:73:instart' /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/eventmachine-1.2.0.1/lib/eventmachine.rb:205:in run'
/home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/eventmachine-1.2.0.1/lib/eventmachine.rb:202:inensure in run' /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/eventmachine-1.2.0.1/lib/eventmachine.rb:202:in `release_machine'

-- Machine register context ------------------------------------------------ GS: 0x00000033 FS: 0x00000000 ES: 0x0000007b DS: 0x0000007b EDI: 0xb6e56104 ESI: 0x0995ac08 EBP: 0xbfa1b9a8 ESP: 0xbfa1b96c EBX: 0xb52b9000 EDX: 0x00000000 ECX: 0x00000020 EAX: 0x0d0e58d0 TRA: 0x0000000e ERR: 0x00000014 EIP: 0x00000000 CS: 0x00000073 EFL: 0x00010296 UES: 0xbfa1b96c SS: 0x0000007b

-- C level backtrace information ------------------------------------------- /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/libruby.so.2.2(rb_vm_bugreport+0x4ac) [0xb7590adc] vm_dump.c:693 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/libruby.so.2.2(rb_bug_context+0x54) [0xb7431054] error.c:425 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/libruby.so.2.2(sigsegv+0x43) [0xb7507283] signal.c:879 [0xb76e0c64]

-- Other runtime information -----------------------------------------------

Loaded script: bin/rails
Loaded features:

0 enumerator.so 1 rational.so 2 complex.so 3 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/2.2.0/i686-linux/enc/encdb.so 4 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/2.2.0/i686-linux/enc/trans/transdb.so 5 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/2.2.0/unicode_normalize.rb 6 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/2.2.0/i686-linux/rbconfig.rb 7 thread.rb 8 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/2.2.0/i686-linux/thread.so 9 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/compatibility.rb 10 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/defaults.rb 11 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/deprecate.rb 12 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/errors.rb 13 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/version.rb 14 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/requirement.rb 15 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib
 /ruby/site_ruby/2.2.0/rubygems/platform.rb 16 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/basic_specification.rb 17 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/stub_specification.rb 18 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/util/stringio.rb 19 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/specification.rb 20 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/exceptions.rb 21 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_gem.rb 795 /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/loofah-2.0.3/lib/loofah/elements.rb 796 /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/loofah-2.0.3/lib/loofah/html5/whitelist.rb 797 /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/loofah-2.0.3/lib/loofah/html5/scrub.rb 952 /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/sass-3.4.22/lib/sass/shared.rb 953 /home/ubuntu/.rvm/gems/ruby-2.2.5@e
 asy_math/gems/sass-3.4.22/lib/sass/media.rb 1388 /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/bundler/gems/paperclip-d61b7069c2ce/lib/paperclip/validators/attachment_size_validator.rb 1389 /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/bundler/gems/paperclip-d61b7069c2ce/lib/paperclip/validators/media_type_spoof_detection_validator.rb 2344 /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/thin-1.7.0/lib/thin/server.rb 2345 /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/thin-1.7.0/lib/thin/backends/base.rb 2346 /home/ubuntu/.rvm/gems/ruby-2.2.5@easy_math/gems/thin-1.7.0/lib/thin/backends/tcp_server.rb
Process memory map:
b76d1000-b76d5000 r--p 0030c000 08:02 3140460 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/libruby.so.2.2.0 b76d5000-b76d7000 rw-p 00310000 08:02 3140460 /home/ubuntu/.rvm/rubies/ruby-2.2.5/lib/libruby.so.2.2.0 b76d7000-b76e0000 rw-p 00000000 00:00 0 b76e0000-b76e1000 r-xp 00000000 00:00 0 [vdso] b76e1000-b76e3000 r--p 00000000 00:00 0 [vvar] b76e3000-b7703000 r-xp 00000000 08:02 5596214 /lib/i386-linux-gnu/ld-2.19.so b7703000-b7704000 r--p 0001f000 08:02 5596214 /lib/i386-linux-gnu/ld-2.19.so b7704000-b7705000 rw-p 00020000 08:02 5596214 /lib/i386-linux-gnu/ld-2.19.so bf21f000-bfa1e000 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

Aborted (core dumped)



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