From: Run Paint Run Run <redmine@...>
Date: 2009-06-19T21:14:40+09:00
Subject: [ruby-core:23932] [Bug #1659] Segfault with Encoding::Converter.asciicompat_encoding('internal')

Bug #1659: Segfault with Encoding::Converter.asciicompat_encoding('internal')
http://redmine.ruby-lang.org/issues/show/1659

Author: Run Paint Run Run
Status: Open, Priority: Normal
Category: M17N
ruby -v: ruby 1.9.2dev (2009-06-19 trunk 23739) [i686-linux]

When my internal encoding is nil, Encoding::Converter.asciicompat_encoding("internal") causes a segfault on trunk and the latest 1.9.1. If Encoding.default_internal is non-nil, the method behaves correctly.

    $ ruby -e 'Encoding::Converter.asciicompat_encoding("internal")'
    -e:1: [BUG] Segmentation fault
    ruby 1.9.2dev (2009-06-19 trunk 23739) [i686-linux]

    -- control frame ----------
    c:0004 p:---- s:0010 b:0010 l:000009 d:000009 CFUNC  :asciicompat_encoding
    c:0003 p:0019 s:0006 b:0006 l:0013b4 d:000384 EVAL   -e:1
    c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
    c:0001 p:0000 s:0002 b:0002 l:0013b4 d:0013b4 TOP   
    ---------------------------
    -e:1:in `<main>'
    -e:1:in `asciicompat_encoding'

    -- C level backtrace information -------------------------------------------
    ruby(rb_vm_bugreport+0xb5) [0x8161a25]
    ruby [0x819c9ab]
    ruby(rb_bug+0x28) [0x819ca38]
    ruby [0x80f6845]
    [0xb808f410]
    ruby [0x815fa89]
    ruby [0x81523de]
    ruby [0x8159172]
    ruby(rb_iseq_eval_main+0x1a3) [0x81593e3]
    ruby(ruby_exec_node+0x97) [0x805d2a7]
    ruby(ruby_run_node+0x46) [0x805eb76]
    ruby(main+0x60) [0x805c6a0]
    /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb7eb0775]
    ruby [0x805c5a1]

    [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


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