# \[Bug #3463\] 1.9.2-preview3 $B$G(B \[BUG\] gc\_sweep(): unknown data type 0x0

**URL:** <https://www.ruby-forum.com/t/bug-3463-1-9-2-preview3-b-g-b-bug-gc-sweep-unknown-data-type-0x0/190535>\
**Category:** Development\
**Created:** [June 22, 2010, 11:35am UTC](https://www.ruby-forum.com/t/bug-3463-1-9-2-preview3-b-g-b-bug-gc-sweep-unknown-data-type-0x0/190535 "2010-06-22T11:35:38Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tomoyuki\_C](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c0e974/32.png) [@Tomoyuki\_C](https://www.ruby-forum.com/u/Tomoyuki_C)\
**Post date:** [June 22, 2010, 11:35am UTC](https://www.ruby-forum.com/t/bug-3463-1-9-2-preview3-b-g-b-bug-gc-sweep-unknown-data-type-0x0/190535/1 "2010-06-22T11:35:38Z")

</div>

Bug #3463: 1.9.2-preview3 e$B$Ge(B [BUG] gc\_sweep(): unknown data type  
0x0  
[http://redmine.ruby-lang.org/issues/show/3463](http://redmine.ruby-lang.org/issues/show/3463)

e$B5/I\<\<Te(B: Tomoyuki C.  
e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal  
ruby -v: ruby 1.9.2dev (2010-05-31 revision 28117) [i686-linux]

1.9.2-preview3  
e$B$G$"$kBg$-$J%W%m%0%i%`$r\<B9TCf$K0J2\<$N$h$&$J%(%i!\<$,H/@8$7$^$7$?!#e(B

[BUG] gc\_sweep(): unknown data type 0x0(0xab7cf14)  
ruby 1.9.2dev (2010-05-31 revision 28117) [i686-linux]

e$BH/@8\>r7o$O$+$J$jJ#9gE\*$i$7$/:F8=$9$k\>.$5$J%9%/%j%W%H$r:n@.$G$-$F$$$^$;$s$,!"e(B  
gdb e$B$G\<B9T$7$F$_$k$He(B gc\_sweep  
e$B$G\>e5-$N%A%‘%C%/$K$R$C$+$+$C$F$$$k%\*%V%8%’%/%H$Oe(B flags e$B$,e(B  
FL\_TAINT e$B$@$1$H$$$&\>uBV$@$C$?$?$a!"e(B  
OBJ\_TAINT e$B$7$F$$$k\>l=j$r$5$i$C$F$_$?$H$3$me(B marshal.c e$B$Ne(B  
clear\_dump\_arg e$B$,2x$7$$$h$&$G$7$?!#e(B

dump\_arg(T\_DATA e$B7?$N%_%V%8%'%/%He(B)e$B$Oe(B GC e$B$Ge(B deffered  
e$B$5$l$k$?$ae(B dump\_arg::str e$B$,@h$Ke(B sweep  
e$B$5$l$F$7$^$&\>l9g$,$"$j!“e(B  
clear\_dump\_arg() e$B$G2rJ|8e$Ne(B VALUE e$B$KBP$7$Fe(B OBJ\_TAINT  
(e$B$d!”$_$=$i$/e(B OBJ\_UNTRUST  
e$B$be(B)e$B$7$F$7$^$&$HH/@8$9$k$h$&$G$7$?!#e(B

e$B$H$j$"$($:E:IU$N%Q%C%A$rEv$F$F$\_$k$HMn$A$J$/$J$j$^$7$?!#$^$?e(B make  
test, test-all e$B$G%(%i!\<$,A}$($F$$$^$;$s!#e(B