# SEGV by marshal\_dump and callcc

**URL:** <https://www.ruby-forum.com/t/segv-by-marshal-dump-and-callcc/138364>\
**Category:** Development\
**Created:** [May 22, 2008, 10:41am UTC](https://www.ruby-forum.com/t/segv-by-marshal-dump-and-callcc/138364 "2008-05-22T10:41:07Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [May 22, 2008, 10:41am UTC](https://www.ruby-forum.com/t/segv-by-marshal-dump-and-callcc/138364/1 "2008-05-22T10:41:07Z")

</div>

e$B0J2\<$N$h$&$K$9$k$He(B SEGV e$B$7$^$9!#e(B

% ./ruby -rcontinuation -ve ’  
o = Object.new  
def o.marshal\_dump() callcc {|k| $k = k }; “fofof” end  
a = [1,2,3,o,4,5,6]  
p Marshal.dump(a)  
$k.call  
’  
ruby 1.9.0 (2008-05-22 revision 16527) [i686-linux]  
“\x04\b[\fi\x06i\ai\bU:\vObjectI”\nfofof\x06:\rencoding"\rUS-ASCIIi\ti\ni\v"  
-e:5: [BUG] Segmentation fault  
ruby 1.9.0 (2008-05-22 revision 16527) [i686-linux]

## – stack frame ------------ 0000 (0xb7abd008): 00000004 0001 (0xb7abd00c): 081aeb38 0002 (0xb7abd010): 00000004 0003 (0xb7abd014): 00000001 0004 (0xb7abd018): 081aec00 0005 (0xb7abd01c): 081aeb9c 0006 (0xb7abd020): 00000004 0007 (0xb7abd024): 081aeb4c 0008 (0xb7abd028): 00000004 0009 (0xb7abd02c): 081ccd40 0010 (0xb7abd030): 081aeb9c 0011 (0xb7abd034): 00000004 0012 (0xb7abd038): 00000001 \<- lfp \<- dfp – control frame ---------- c:0004 p:---- s:0013 b:0013 l:000012 d:000012 CFUNC :dump c:0003 p:0055 s:0009 b:0008 l:0023dc d:0023dc TOP -e:5 c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH :private\_class\_method c:0001 p:0000 s:0002 b:0002 l:00241c d:00241c TOP :17

DBG\> : “-e:5:in `’”  
– backtrace of native function call (Use addr2line) –  
0x8117ec4  
0x813ca1b  
0x813ca53  
0x80dacd3  
0xb7f58440  
0x8079fd3  
0x807a0ec  
0x807a2e6  
0x807a918  
0x807b061  
0x807b3b4  
0x805d34d  
0x807b69b  
0x810d8d7  
0x81156ea  
0x8115234  
0x8111733  
0x81158d1  
0x8115f22  
0x805bc06  
0x805bca9  
0x8058d28  
0xb7db9ea8  
0x8058c31