# \[Bug #842\] endless loop of ObjectSpace.each\_object

**URL:** <https://www.ruby-forum.com/t/bug-842-endless-loop-of-objectspace-each-object/155275>\
**Category:** Development\
**Created:** [December 10, 2008, 3:05am UTC](https://www.ruby-forum.com/t/bug-842-endless-loop-of-objectspace-each-object/155275 "2008-12-10T03:05:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Narihiro\_N](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/9fc29f/32.png) [@Narihiro\_N](https://www.ruby-forum.com/u/Narihiro_N)\
**Post date:** [December 10, 2008, 3:05am UTC](https://www.ruby-forum.com/t/bug-842-endless-loop-of-objectspace-each-object/155275/1 "2008-12-10T03:05:00Z")

</div>

Bug #842: endless loop of ObjectSpace.each\_object  
[http://redmine.ruby-lang.org/issues/show/842](http://redmine.ruby-lang.org/issues/show/842)

e$B5/I\<\<Te(B: Narihiro N.  
e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal

narie$B$G$9!%e(B

e$B0J2\<$NMM$K$9$k$HL58B%k!\<%W$KF~$j$^$9!%e(B

$ ./miniruby -v  
ruby 1.9.1 (2008-12-10 revision 20602) [i686-linux]  
$ ./miniruby -e “GC.disable; ObjectSpace.each\_object{ String.new(‘a’) }”

e$B$3$l$,%P%0$J$N$+$I$&$+J,$+$j$^$;$s$G$7$?!%e(B  
GC.disablee$B$J\>uBV$G$NF0:n$G$9$N$GEvA3$H$$$($PEvA3$J$N$G$9$,!%!%e(B  
e$B=$@5$9$k%Q%C%A$rE:IU$$$?$7$^$9$N$G!$$48!F$Dx$h$m$7$/$\*4j$$$7$^$9!%e(B

# Index: gc.c

— gc.c (revision 20602)  
+++ gc.c (working copy)  
@@ -2089,7 +2089,9 @@  
RVALUE \*membase = 0;  
RVALUE \*p, \*pend;  
volatile VALUE v;

- int old\_dont\_gc = dont\_gc;

- if (old\_dont\_gc) dont\_gc = Qfalse;  
i = 0;  
while (i \< heaps\_used) {  
while (0 \< i && (uintptr\_t)membase \<  
(uintptr\_t)heaps[i-1].membase)  
@@ -2123,6 +2125,7 @@  
}  
}

- dont\_gc = old\_dont\_gc;  
return SIZET2NUM(n);  
}

---

<div class="post-metadata">

**Author:** ![Narihiro\_N](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/9fc29f/32.png) [@Narihiro\_N](https://www.ruby-forum.com/u/Narihiro_N)\
**Post date:** [December 11, 2008, 3:28am UTC](https://www.ruby-forum.com/t/bug-842-endless-loop-of-objectspace-each-object/155275/2 "2008-12-11T03:28:01Z")

</div>

e$B%A%1%C%He(B #842 e$B$,99?7$5$l$^$7$?!#e(B (by Yuki S.)

e$B%9%F!\<%?%9e(B Opene$B$+$ie(BRejectede$B$KJQ99e(B

@ Rubye$B3+H/2q5De(B

- 

each\_objecte$BCf$K@8@.$5$l$?%\*%V%8%'%/%H$,e(Beach\_objecte$B$K=P8=$9$k$+$I$&$+$OITDje(B

- e$B=P8=$9$k\>l9g!“@8@.$7B3$1$l$P=\*N;$7$J$$%1!\<%9$,$”$k$3$H$O;EMMe(B

* * *

[http://redmine.ruby-lang.org/issues/show/842](http://redmine.ruby-lang.org/issues/show/842)