From: Marc-Andre Lafortune <redmine@...>
Date: 2009-12-19T11:58:05+09:00
Subject: [ruby-core:27226] [Bug #2499] InstructionSequence.dissassemble can crash

Bug #2499: InstructionSequence.dissassemble can crash
http://redmine.ruby-lang.org/issues/show/2499

Author: Marc-Andre Lafortune
Status: Open, Priority: Normal
Category: core, Target version: 1.9.2
ruby -v: ruby 1.9.2dev (2009-12-19 trunk 26121) [x86_64-darwin10.2.0]

I was trying to understand what InstructionSequence.disassemble is supposed to do when:

$ rubydev -e 'RubyVM::InstructionSequence.disassemble("x".method(:upcase))'
-e:1: [BUG] Segmentation fault
ruby 1.9.2dev (2009-12-19 trunk 26121) [x86_64-darwin10.2.0]

-- control frame ----------
c:0004 p:---- s:0010 b:0010 l:000009 d:000009 CFUNC  :disassemble
c:0003 p:0027 s:0006 b:0006 l:0022c8 d:001e98 EVAL   -e:1
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:0000 s:0002 b:0002 l:0022c8 d:0022c8 TOP   
---------------------------
-e:1:in `<main>'
-e:1:in `disassemble'

-- C level backtrace information -------------------------------------------

[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

Abort trap


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