Bug #506: ObjectSpace.each_object Segmentation fault

• Status: Closed
• Assignee: mame (Yusuke Endoh)
• Target version: -

[mame (Yusuke Endoh)]

=begin
遠藤です。

2008/08/26 23:37 fujidig [e-mail]:

Ruby 1.9.0-4 の irb で ObjectSpace.each_object(String){|s| s.dup } を
実行すると SEGV します。

$ irb-1.9.0-4
irb(main):001:0> ObjectSpace.each_object(String){|s| s.dup }
(irb):1: [BUG] Segmentation fault
ruby 1.9.0 (2008-08-26 revision 18849) [i686-linux]
(snip)

ご報告ありがとうございます。
おそらく以下のパッチで直ると思います。

Index: string.c

--- string.c (revision 18880)
+++ string.c (working copy)
@@ -669,10 +669,9 @@
else {
RSTRING(str)->as.heap.aux.capa = RSTRING(str2)->as.heap.aux.capa;
}

• RSTRING(str2)->as.heap.ptr = 0; /* abandon str2 */
• RSTRING(str2)->as.heap.len = 0;
• RSTRING(str2)->as.heap.aux.capa = 0;
• STR_UNSET_NOCAPA(str2);

• STR_SET_EMBED(str2); /* abandon str2 */
• RSTRING_PTR(str2)[0] = 0;
• STR_SET_EMBED_LEN(str2, 0);
  rb_enc_associate(str, enc);
  ENC_CODERANGE_SET(str, cr);
  }

--
Yusuke ENDOH [e-mail]
=end

[ko1 (Koichi Sasada)]

• Assignee set to mame (Yusuke Endoh)

=begin

=end

[matz (Yukihiro Matsumoto)]

• Status changed from Open to Closed

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=end