# \[Bug #513\] Tempfile yields \[BUG\] Stack consistency error

**URL:** <https://www.ruby-forum.com/t/bug-513-tempfile-yields-bug-stack-consistency-error/147060>\
**Category:** Development\
**Created:** [August 28, 2008, 4:23am UTC](https://www.ruby-forum.com/t/bug-513-tempfile-yields-bug-stack-consistency-error/147060 "2008-08-28T04:23:49Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Shyouhei\_U](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/94ad74/32.png) [@Shyouhei\_U](https://www.ruby-forum.com/u/Shyouhei_U)\
**Post date:** [August 28, 2008, 4:23am UTC](https://www.ruby-forum.com/t/bug-513-tempfile-yields-bug-stack-consistency-error/147060/1 "2008-08-28T04:23:49Z")

</div>

Bug #513: Tempfile yields [BUG] Stack consistency error  
[http://redmine.ruby-lang.org/issues/show/513](http://redmine.ruby-lang.org/issues/show/513)

e$B5/I\<\<Te(B: Shyouhei U.  
e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal  
e$BC4Ev\<Te(B: Koichi Sasada, e$B%+%F%4%je(B: YARV

zsh % gdb --args ~/target/trunk/bin/ruby -rtempfile -ve  
Tempfile.open(“”) do |f|  
f.write “\n”;  
f.rewind;  
g = Tempfile.new “”;  
f.each {break};  
g.rewind;  
end  
’  
GNU gdb 6.4.90-debian  
Copyright (C) 2006 Free Software Foundation, Inc.  
GDB is free software, covered by the GNU General Public License, and  
you are  
welcome to change it and/or distribute copies of it under certain  
conditions.  
Type “show copying” to see the conditions.  
There is absolutely no warranty for GDB. Type “show warranty” for  
details.  
This GDB was configured as “x86\_64-linux-gnu”…Using host libthread\_db  
library “/lib/libthread\_db.so.1”.

(gdb) run  
Starting program: /home/shyouhei/target/trunk/bin/ruby -rtempfile -ve   
Tempfile.open("")\ do\ |f|  
\ f.write\ "\n";  
\ f.rewind;  
\ g\ =\ Tempfile.new\ "";  
\ f.each\ {break};  
\ g.rewind;  
end\

[Thread debugging using libthread\_db enabled]  
[New Thread 47466447361456 (LWP 21474)]  
[New Thread 1073756512 (LWP 21477)]  
ruby 1.9.0 (2008-08-28 revision 17576) [x86\_64-linux]  
-e:1: [BUG] Stack consistency error (sp: 16, bp: 15)  
ruby 1.9.0 (2008-08-28 revision 17576) [x86\_64-linux]

## – control frame ---------- c:0005 p:0070 s:0016 b:0015 l:000148 d:0001d8 BLOCK -e:1 c:0004 p:0035 s:0011 b:0011 l:000010 d:000010 METHOD /home/shyouhei/target/trunk/lib/ruby/1.9.0/tempfile.rb:186 c:0003 p:0017 s:0006 b:0006 l:000148 d:000148 TOP -e:1 c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH :private\_class\_method c:0001 p:0000 s:0002 b:0002 l:000001 d:000001 TOP

## DBG\> : “-e:1:in `block in <main>'" DBG> : "/home/shyouhei/target/trunk/lib/ruby/1.9.0/tempfile.rb:186:in `open’” DBG\> : “-e:1:in `'” – backtrace of native function call (Use addr2line) – 0x4f5b51 0x51fa2f 0x51fb1f 0x4ee38f 0x4f2b2d 0x4f3337 0x41682f 0x4168de 0x415007 0x316ca1c4ca 0x414f1a

Program received signal SIGABRT, Aborted.  
[Switching to Thread 47466447361456 (LWP 21474)]  
0x000000316ca2f07b in raise () from /lib/libc.so.6  
(gdb) bt  
#0 0x000000316ca2f07b in raise () from /lib/libc.so.6  
#1 0x000000316ca3084e in abort () from /lib/libc.so.6  
#2 0x000000000051fb24 in rb\_bug (fmt=0x564d80 “Stack consistency error  
(sp: %ld, bp: %ld)”) at /home/shyouhei/ruby/trunk/error.c:226  
#3 0x00000000004ee38f in vm\_eval (th=0x6f0110, initial=0) at  
/home/shyouhei/ruby/trunk/insns.def:1061  
#4 0x00000000004f2b2d in vm\_eval\_body (th=0x6f0110) at  
/home/shyouhei/ruby/trunk/vm.c:1062  
#5 0x00000000004f3337 in rb\_iseq\_eval (iseqval=10262960) at  
/home/shyouhei/ruby/trunk/vm.c:1267  
#6 0x000000000041682f in ruby\_exec\_node (n=0x9c99b0, file=0x0) at  
/home/shyouhei/ruby/trunk/eval.c:217  
#7 0x00000000004168de in ruby\_run\_node (n=0x9c99b0) at  
/home/shyouhei/ruby/trunk/eval.c:245  
#8 0x0000000000415007 in main (argc=4, argv=0x7fff05ef52b8) at  
/home/shyouhei/ruby/trunk/main.c:34  
(gdb)

---

<div class="post-metadata">

**Author:** ![Shyouhei\_U](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/94ad74/32.png) [@Shyouhei\_U](https://www.ruby-forum.com/u/Shyouhei_U)\
**Post date:** [August 28, 2008, 2:01pm UTC](https://www.ruby-forum.com/t/bug-513-tempfile-yields-bug-stack-consistency-error/147060/2 "2008-08-28T14:01:35Z")

</div>

e$B1sF#$G$9!#e(B

2008/08/28 11:18 Shyouhei U. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> zsh % gdb --args ~/target/trunk/bin/ruby -rtempfile -ve  
> Tempfile.open(“”) do |f|  
> f.write “\n”;  
> f.rewind;  
> g = Tempfile.new “”;  
> f.each {break};  
> g.rewind;  
> end  
> ’  
> (snip)  
> -e:1: [BUG] Stack consistency error (sp: 16, bp: 15)  
> (snip)

e$B4JC1$K$G$-$^$7$?!#e(B

$ ./ruby -e ’  
class Foo  
define\_method(:foo) do |&b|  
b.call  
end  
end

Foo.new.foo do  
break  
end  
’  
-e:8: [BUG] Stack consistency error (sp: 7, bp: 6)  
ruby 1.9.0 (2008-08-28 revision 18895) [i686-linux]

## – control frame ---------- c:0003 p:0032 s:0007 b:0006 l:001084 d:001084 TOP -e:8 c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH :private\_class\_method c:0001 p:0000 s:0002 b:0002 l:000001 d:000001 TOP :17

## DBG\> : “-e:8:in `'” – backtrace of native function call (Use addr2line) – 0x8112df4 0x813e18e 0x813e1d8 0x810bc5f 0x810c3a4 0x810c58c 0x805aa3f 0x805bd46 0x8058e70 0xb7e21ea8 0x8058d51

Aborted

BMETHOD e$BCf$Ge(B throw e$B$9$k2DG=@-$,$"$k$N$G!"e(BBMETHOD  
e$B$r8F$S=P$9A0$Ke(B  
e$B%9%?%C%/$r=L$a$k$Y$-$+$H;W$$$^$9!#e(B

# Index: vm\_insnhelper.c

— vm\_insnhelper.c (revision 18895)  
+++ vm\_insnhelper.c (working copy)  
@@ -519,8 +519,8 @@  
}  
case NODE\_BMETHOD:{  
VALUE \*argv = cfp-\>sp - num;

- cfp-\>sp += - num - 1;  
val = vm\_call\_bmethod(th, id, node-\>nd\_cval, recv, klass, num,  
argv, blockptr);

- cfp-\>sp += - num - 1;  
break;  
}  
case NODE\_ZSUPER:{

---

<div class="post-metadata">

**Author:** ![Shyouhei\_U](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/94ad74/32.png) [@Shyouhei\_U](https://www.ruby-forum.com/u/Shyouhei_U)\
**Post date:** [August 28, 2008, 4:14pm UTC](https://www.ruby-forum.com/t/bug-513-tempfile-yields-bug-stack-consistency-error/147060/3 "2008-08-28T16:14:50Z")

</div>

e$B1sF#$G$9!#e(B

2008/08/28 21:40 Yukihiro M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> |— vm\_insnhelper.c (revision 18895)  
> |+++ vm\_insnhelper.c (working copy)
> 
> e$B%3%\_%C%H$7$F$/$@$5$$!#e(B

e$B$9$_$^$;$s!"$3$N%Q%C%A$@$He(B make test e$B$,DL$j$^$;$s$G$7$?!#e(B  
e$B0J2\<$N%Q%C%A$Ge(B make test && make test-all e$B$,DL$C$?$N$G!“e(B  
e$B$H$j$”$($:%3%_%C%H$7$F$\*$-$^$9!#e(B

# Index: vm\_insnhelper.c

— vm\_insnhelper.c (revision 18897)  
+++ vm\_insnhelper.c (working copy)  
@@ -519,8 +519,19 @@  
}  
case NODE\_BMETHOD:{  
VALUE \*argv = cfp-\>sp - num;

- val = vm\_call\_bmethod(th, id, node-\>nd\_cval, recv, klass, num,  
argv, blockptr);

- int state;
- 
- TH\_PUSH\_TAG(th);
- if ((state = EXEC\_TAG()) == 0) {
- 

```
   val = vm_call_bmethod(th, id, node->nd_cval, recv, klass, num,

```

argv, blockptr);

- }
- TH\_POP\_TAG();
- cfp-\>sp += - num - 1;
- 
- if (state) {
- 

```
   JUMP_TAG(state);

```

- }  
break;  
}  
case NODE\_ZSUPER:{

---

<div class="post-metadata">

**Author:** ![Shyouhei\_U](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/94ad74/32.png) [@Shyouhei\_U](https://www.ruby-forum.com/u/Shyouhei_U)\
**Post date:** [August 28, 2008, 2:47pm UTC](https://www.ruby-forum.com/t/bug-513-tempfile-yields-bug-stack-consistency-error/147060/4 "2008-08-28T14:47:59Z")

</div>

e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B

In message “Re: [ruby-dev:36029] Re: [Bug #513] Tempfile yields [BUG]  
Stack consistency error”  
on Thu, 28 Aug 2008 20:52:05 +0900, “Yusuke ENDOH” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
writes:

|BMETHOD e$BCf$Ge(B throw e$B$9$k2DG=@-$,$"$k$N$G!"e(BBMETHOD e$B$r8F$S=P$9A0$Ke(B  
|e$B%9%?%C%/$r=L$a$k$Y$-$+$H;W$$$^$9!#e(B  
|  
|Index: vm\_insnhelper.c  
|===================================================================  
|— vm\_insnhelper.c (revision 18895)  
|+++ vm\_insnhelper.c (working copy)

e$B%3%\_%C%H$7$F$/$@$5$$!#e(B

---

<div class="post-metadata">

**Author:** ![Shyouhei\_U](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/94ad74/32.png) [@Shyouhei\_U](https://www.ruby-forum.com/u/Shyouhei_U)\
**Post date:** [August 28, 2008, 4:24pm UTC](https://www.ruby-forum.com/t/bug-513-tempfile-yields-bug-stack-consistency-error/147060/5 "2008-08-28T16:24:47Z")

</div>

e$B1sF#$G$9!#e(B

2008/08/28 23:09 Yusuke ENDOH [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> > |  
> > e$B$H$j$“$($:%3%_%C%H$7$F$\*$-$^$9!#e(B  
> > e$B$H8@$C$?$P$+$j$G$9$,!"$5$5$@$5$s$,$b$&$A$g$C$H6l$7$_$?$$$H$Ne(B  
> > e$B$3$H$J$N$G!”%F%9%H$@$1F~$l$k$3$H$K$7$^$9!#e(B

---

<div class="post-metadata">

**Author:** ![Shyouhei\_U](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/94ad74/32.png) [@Shyouhei\_U](https://www.ruby-forum.com/u/Shyouhei_U)\
**Post date:** [August 29, 2008, 10:27am UTC](https://www.ruby-forum.com/t/bug-513-tempfile-yields-bug-stack-consistency-error/147060/6 "2008-08-29T10:27:45Z")

</div>

e$B%A%1%C%He(B #513 e$B$,99?7$5$l$^$7$?!#e(B (by Koichi Sasada)

e$B%9%F!\<%?%9e(B Opene$B$+$ie(BClosede$B$KJQ99e(B  
e$B?JD=e(B % 0e$B$+$ie(B100e$B$KJQ99e(B

## Applied in changeset r18918.

[http://redmine.ruby-lang.org/issues/show/513](http://redmine.ruby-lang.org/issues/show/513)