# \*v1,(\*) = 0: Stack consistency error

**URL:** <https://www.ruby-forum.com/t/v1-0-stack-consistency-error/108312>\
**Category:** Development\
**Created:** [July 2, 2007, 5:25am UTC](https://www.ruby-forum.com/t/v1-0-stack-consistency-error/108312 "2007-07-02T05:25:44Z")\
**Posts on this page:** 3\
**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:** [July 2, 2007, 5:25am UTC](https://www.ruby-forum.com/t/v1-0-stack-consistency-error/108312/1 "2007-07-02T05:25:44Z")

</div>

e$B\<!$N$h$&$K$9$k$He(B Stack consistency error e$B$K$J$j$^$9!#e(B

## % ./ruby -e ‘_v1,(_) = 0’ -e:1: – control frame ---------- c:0003 p:0014 s:0007 b:0006 l:000005 d:000005 TOP -e:1 c:0002 p:---- s:0003 b:0003 l:000002 d:000002 FINISH :inherited c:0001 p:---- s:0001 b:-001 l:000000 d:000000 ------

– backtrace of native function call (Use addr2line) –  
0x80f0624  
0x8109e6e  
0x80eb3b3  
0x80eee4a  
0x80ef487  
0x80f07ce  
0x80f08c8  
0x8059c6c  
0x8059ca9  
0x8059ce4  
0x8056e72  
0xb7d76ea8  
0x8056da1

---

<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:** [July 2, 2007, 6:17am UTC](https://www.ruby-forum.com/t/v1-0-stack-consistency-error/108312/2 "2007-07-02T06:17:47Z")

</div>

In article [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid),  
Tanaka A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

> e$B\<!$N$h$&$K$9$k$He(B Stack consistency error e$B$K$J$j$^$9!#e(B
> 
> % ./ruby -e ‘_v1,(_) = 0’

e$B860x$,F1$8$+$I$&$+$O$o$+$j$^$;$s$,!"0J2\<$b0[\>o=\*N;$7$^$9!#e(B

(_v0,(_)), = 0  
v0,_v1,(v2,v3) = 0  
v0,v1,() = 0  
v0,v1,v2,() = 0  
v0,v1,(),v2 = 0  
(),v0,() = 0  
v0,v1,v2,() = 0  
v0,_,(_v1,v2) = 0  
v0,_,(_) = 0  
v0,_,v1,(_) = 0  
v0,_,(_),v1 = 0  
(_),_,(_) = 0  
v0,v1,_,(_) = 0  
\*,(\*v0,v1), = 0  
_,(_), = 0  
_,v0,(_), = 0  
_,(_),v0, = 0  
\*v0,(v1,v2,) = 0  
\*v0,(v1,v2) = 0  
\*v0,(v1,\*v2) = 0  
\*v0,(v1,\*v2,v3) = 0  
_v0,(v1,_,v2) = 0  
_v0,(_,v1,) = 0  
\*v0,(\*v1,v2) = 0  
\*v0,(_v1,(_)) = 0  
\*v0,(_v1,v2,v3) = 0  
 v0,() = 0  
 v0,v1,(v2,v3) = 0  
 v0,v1,() = 0  
 v0,(v1,v2),v3 = 0  
 v0,(),v1 = 0  
 v0,(),() = 0  
 v0,v1,v2,() = 0  
 v0,v1,(),v2 = 0  
 v0,(),v1,v2 = 0  
(v0,v1,()) = 0  
(v0,,()) = 0  
(,(_),) = 0  
(\*v0,(\*v1,v2)) = 0  
(_v0,(_)) = 0  
(_v0,v1,(_)) = 0  
(_v0,(_),v1) = 0  
((_v0,(_))) = 0

---

<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:** [July 3, 2007, 8:42pm UTC](https://www.ruby-forum.com/t/v1-0-stack-consistency-error/108312/3 "2007-07-03T20:42:13Z")

</div>

e$B!!$5$5$@$G$9!#e(B

Tanaka A. wrote:

> In article [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid),  
> Tanaka A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:
> 
> > e$B\<!$N$h$&$K$9$k$He(B Stack consistency error e$B$K$J$j$^$9!#e(B
> > 
> > % ./ruby -e ‘_v1,(_) = 0’
> 
> e$B860x$,F1$8$+$I$&$+$O$o$+$j$^$;$s$,!"0J2\<$b0[\>o=\*N;$7$^$9!#e(B  
> …

e$B!!$H$j$“$($:!“A4ItDL$9$h$&$K$7$^$7$?!#7k2L$,$”$C$F$k$+$O$”$s$^e(B  
e$B$j\<+?.$,$J$$$s$G$9$,!"$H$$$&$+!“A4ItL$GDI$$$?$/$J$$e(B  
orze$B!!%i%se(B  
e$B%@%`%F%9%H$H$$$&$+!“2?8D$+8+$?8B$j$G$O!”$3$&$J$C$F$[$7$$$N$+$Je(B  
e$B$”$H$$$&F0$-$r$7$F$$$^$9!#e(B

./miniruby -I…/trunk/lib …/trunk/test.rb  
program: (_v0,(_)), = 0; [v0]  
result : [[]]  
program: (_v0,(_)), =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0]  
result : [[:a, :b]]  
program: v0,_v1,(v2,v3) = 0; ; [v0,v1,v2,v3]  
result : [0, [], [], nil]  
program: v0,v1,(v2,v3) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; ; [v0,v1,v2,v3]  
result : [[:a, :b, :c], [[:d, :e, :f], [:g, :h, :i]], [:j,  
:k], :m]  
program: v0,v1,() = 0; [v0,v1]  
result : [0, []]  
program: v0,v1,() =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [[:a, :b, :c], [[:d, :e, :f], [:g, :h, :i]]]  
program: v0,v1,v2,() = 0; [v0,v1,v2]  
result : [0, [], nil]  
program: v0,v1,v2,() =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[:a, :b, :c], [[:d, :e, :f]], [:g, :h, :i]]  
program: v0,v1,(),v2 = 0; [v0,v1,v2]  
result : [0, [], nil]  
program: v0,v1,(),v2 =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[:a, :b, :c], [[:d, :e, :f]], [:j, :k, :m]]  
program: (),v0,() = 0; [v0]  
result : [[]]  
program: (),v0,() =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0]  
result : [[[:d, :e, :f], [:g, :h, :i]]]  
program: v0,v1,v2,() = 0; [v0,v1,v2]  
result : [0, nil, []]  
program: v0,v1,v2,() =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[:a, :b, :c], [:d, :e, :f], [[:g, :h, :i]]]  
program: v0,,(v1,v2) = 0; [v0,v1,v2]  
result : [0, [], nil]  
program: v0,,(v1,v2) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[:a, :b, :c], [:j, :k], :m]  
program: v0,,(_) = 0; [v0]  
result : [0]  
program: v0,_,(_) = [[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k,  
:m]]; [v0]  
result : [[:a, :b, :c]]  
program: v0,_,v1,(_) = 0; [v0,v1]  
result : [0, nil]  
program: v0,_,v1,(_) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [[:a, :b, :c], [:g, :h, :i]]  
program: v0,_,(_),v1 = 0; [v0,v1]  
result : [0, nil]  
program: v0,_,(_),v1 =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [[:a, :b, :c], [:j, :k, :m]]  
program: (_),_,(_) = 0; []  
result : []  
program: (_),_,(_) = [[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k,  
:m]]; []  
result : []  
program: v0,v1,_,(_) = 0; [v0,v1]  
result : [0, nil]  
program: v0,v1,_,(_) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [[:a, :b, :c], [:d, :e, :f]]  
program: \*,(\*v0,v1), = 0; [v0,v1]  
result : [[], 0]  
program: \*,(\*v0,v1), =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [[:j, :k], :m]  
program: _,(_), = 0; []  
result : []  
program: _,(_), = [[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k,  
:m]]; []  
result : []  
program: _,v0,(_), = 0; [v0]  
result : [0]  
program: _,v0,(_), = [[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k,  
:m]]; [v0]  
result : [[:g, :h, :i]]  
program: _,(_),v0, = 0; [v0]  
result : [nil]  
program: _,(_),v0, = [[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k,  
:m]]; [v0]  
result : [[:j, :k, :m]]  
program: \*v0,(v1,v2,) = 0; [v0,v1,v2]  
result : [[], 0, nil]  
program: \*v0,(v1,v2,) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[[:a, :b, :c], [:d, :e, :f], [:g, :h, :i]], :j, :k]  
program: \*v0,(v1,v2) = 0; [v0,v1,v2]  
result : [[], 0, nil]  
program: \*v0,(v1,v2) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[[:a, :b, :c], [:d, :e, :f], [:g, :h, :i]], :j, :k]  
program: \*v0,(v1,\*v2) = 0; [v0,v1,v2]  
result : [[], 0, []]  
program: \*v0,(v1,\*v2) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[[:a, :b, :c], [:d, :e, :f], [:g, :h, :i]], :j, [:k,  
:m]]  
program: \*v0,(v1,\*v2,v3) = 0; [v0,v1,v2,v3]  
result : [[], 0, [], nil]  
program: \*v0,(v1,\*v2,v3) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2,v3]  
result : [[[:a, :b, :c], [:d, :e, :f], [:g, :h, :i]], :j,  
[:k], :m]  
program: _v0,(v1,_,v2) = 0; [v0,v1,v2]  
result : [[], 0, nil]  
program: _v0,(v1,_,v2) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[[:a, :b, :c], [:d, :e, :f], [:g, :h, :i]], :j, :m]  
program: _v0,(_,v1,) = 0; [v0,v1]  
result : [[], 0]  
program: _v0,(_,v1,) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [[[:a, :b, :c], [:d, :e, :f], [:g, :h, :i]], :m]  
program: \*v0,(\*v1,v2) = 0; [v0,v1,v2]  
result : [[], [], 0]  
program: \*v0,(\*v1,v2) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[[:a, :b, :c], [:d, :e, :f], [:g, :h, :i]], [:j,  
:k], :m]  
program: \*v0,(_v1,(_)) = 0; [v0,v1]  
result : [[], []]  
program: \*v0,(_v1,(_)) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [[[:a, :b, :c], [:d, :e, :f], [:g, :h, :i]], [:j, :k]]  
program: \*v0,(\*v1,v2,v3) = 0; [v0,v1,v2,v3]  
result : [[], [], 0, nil]  
program: _v0,(v1,v2,v3) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2,v3]  
result : [[[:a, :b, :c], [:d, :e, :f], [:g, :h, :i]], [:j],  
:k, :m]  
program: v0,() = 0; [v0]  
result : [[]]  
program: v0,() = [[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k,  
:m]]; [v0]  
result : [[[:a, :b, :c], [:d, :e, :f], [:g, :h, :i]]]  
program: v0,v1,(v2,v3) = 0; [v0,v1,v2,v3]  
result : [[], 0, [], nil]  
program: v0,v1,(v2,v3) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2,v3]  
result : [[[:a, :b, :c], [:d, :e, :f]], [:g, :h, :i], [:j,  
:k], :m]  
program: v0,v1,() = 0; [v0,v1]  
result : [[], 0]  
program: v0,v1,() =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [[[:a, :b, :c], [:d, :e, :f]], [:g, :h, :i]]  
program: v0,(v1,v2),v3 = 0; [v0,v1,v2,v3]  
result : [[], [], 0, nil]  
program: v0,(v1,v2),v3 =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2,v3]  
result : [[[:a, :b, :c], [:d, :e, :f]], [:g, :h], :i, [:j, :k,  
:m]]  
program: v0,(),v1 = 0; [v0,v1]  
result : [[], nil]  
program: v0,(),v1 =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [[[:a, :b, :c], [:d, :e, :f]], [:j, :k, :m]]  
program: v0,(),() = 0; [v0]  
result : [[]]  
program: v0,(),() =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0]  
result : [[[:a, :b, :c], [:d, :e, :f]]]  
program: v0,v1,v2,() = 0; [v0,v1,v2]  
result : [[], 0, nil]  
program: v0,v1,v2,() =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[[:a, :b, :c]], [:d, :e, :f], [:g, :h, :i]]  
program: v0,v1,(),v2 = 0; [v0,v1,v2]  
result : [[], 0, nil]  
program: v0,v1,(),v2 =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[[:a, :b, :c]], [:d, :e, :f], [:j, :k, :m]]  
program: v0,(),v1,v2 = 0; [v0,v1,v2]  
result : [[], nil, nil]  
program: v0,(),v1,v2 =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[[:a, :b, :c]], [:g, :h, :i], [:j, :k, :m]]  
program: (v0,v1,()) = 0; [v0,v1]  
result : [0, []]  
program: (v0,v1,()) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [:a, [:b]]  
program: (v0,,()) = 0; [v0]  
result : [0]  
program: (v0,,()) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0]  
result : [:a]  
program: (,(),) = 0; []  
result : []  
program: (,(_),) = [[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k,  
:m]]; []  
result : []  
program: (\*v0,(\*v1,v2)) = 0; [v0,v1,v2]  
result : [[], [], 0]  
program: (\*v0,(\*v1,v2)) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1,v2]  
result : [[:a, :b], [], :c]  
program: (_v0,(_)) = 0; [v0]  
result : [[]]  
program: (_v0,(_)) = [[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k,  
:m]]; [v0]  
result : [[:a, :b]]  
program: (_v0,v1,(_)) = 0; [v0,v1]  
result : [[], 0]  
program: (_v0,v1,(_)) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [[:a], :b]  
program: (_v0,(_),v1) = 0; [v0,v1]  
result : [[], nil]  
program: (_v0,(_),v1) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0,v1]  
result : [[:a], :c]  
program: ((_v0,(_))) = 0; [v0]  
result : [[]]  
program: ((_v0,(_))) =  
[[:a,:b,:c],[:d,:e,:f],[:g,:h,:i],[:j,:k, :m]]; [v0]  
result : [[]]