# IO for a bad descriptor dumps core

**URL:** <https://www.ruby-forum.com/t/io-for-a-bad-descriptor-dumps-core/149922>\
**Category:** Development\
**Created:** [October 1, 2008, 8:18am UTC](https://www.ruby-forum.com/t/io-for-a-bad-descriptor-dumps-core/149922 "2008-10-01T08:18:43Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Yugui\_SYuki\_S.S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/dec6dc/32.png) [@Yugui\_SYuki\_S.S](https://www.ruby-forum.com/u/Yugui_SYuki_S.S)\
**Post date:** [October 1, 2008, 8:18am UTC](https://www.ruby-forum.com/t/io-for-a-bad-descriptor-dumps-core/149922/1 "2008-10-01T08:18:43Z")

</div>

Yuguie$B$G$9!#\<!$N$h$&$K$9$k$HMn$A$^$9!#e(BIOErrore$B$,4|BT$5$l$k$N$G$O$J$$$G$7$ge(B  
e$B$&$+e(B?

$ ./ruby-trunk -ve ‘IO.open(3, “w”).puts’  
ruby 1.9.0 (2008-09-30 revision 0) [i386-darwin9.5.0]  
:2: [BUG] object allocation during garbage collection phase  
ruby 1.9.0 (2008-09-30 revision 0) [i386-darwin9.5.0]

## – control frame ---------- c:0002 p:---- s:0004 b:0004 l:000003 d:000003 CFUNC :(null) c:0001 p:0000 s:0002 b:0002 l:000001 d:000001 TOP :2

DBG\> : “:0:in `(null)’”  
– backtrace of native function call (Use addr2line) –  
0x10faa6  
0x274bc  
0x274fb  
0x3c753  
0x5d5bc  
0xfd04d  
0xfd52b  
0x5e4ef  
0x5e572  
0x28a06  
0x113d04  
0x113d30  
0x4259a  
0x4439c  
0x44629  
0x39a13  
0x2c968  
0x2caf6  
0x244f  
0x23b6