# \[Bug #705\] sample/test.rb:1829: \[BUG\] Segmentation fault

**URL:** <https://www.ruby-forum.com/t/bug-705-sample-test-rb-bug-segmentation-fault/152275>\
**Category:** Development\
**Created:** [November 1, 2008, 4:55am UTC](https://www.ruby-forum.com/t/bug-705-sample-test-rb-bug-segmentation-fault/152275 "2008-11-01T04:55:26Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![pegacorn\_jp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/c67d28/32.png) [@pegacorn\_jp](https://www.ruby-forum.com/u/pegacorn_jp)\
**Post date:** [November 1, 2008, 4:55am UTC](https://www.ruby-forum.com/t/bug-705-sample-test-rb-bug-segmentation-fault/152275/1 "2008-11-01T04:55:26Z")

</div>

Bug #705: sample/test.rb:1829: [BUG] Segmentation fault  
[http://redmine.ruby-lang.org/issues/show/705](http://redmine.ruby-lang.org/issues/show/705)

e$B5/I\<\<Te(B: pegacorn jp  
e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: High

r19078 e$B0J9\_e(B SEGV e$B$7$^$9!#e(B

```
D:\work\ruby_1_8-r19078\win32>nmake test

Microsoft (R) Program Maintenance Utility Version 6.00.9782.0
Copyright (C) Microsoft Corp 1988-1998. All rights reserved.

./../sample/test.rb:1829: [BUG] Segmentation fault
ruby 1.8.7 (2008-09-02 revision 19404) [i386-mswin32]

abnormal program termination
test failed
NMAKE : fatal error U1077: '.\miniruby.exe' : e$B%j%?!<%se(B 

```

e$B%3!\<%Ie(B ‘0x1’  
Stop.

---

<div class="post-metadata">

**Author:** ![pegacorn\_jp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/c67d28/32.png) [@pegacorn\_jp](https://www.ruby-forum.com/u/pegacorn_jp)\
**Post date:** [November 1, 2008, 12:28pm UTC](https://www.ruby-forum.com/t/bug-705-sample-test-rb-bug-segmentation-fault/152275/2 "2008-11-01T12:28:45Z")

</div>

e$B$J$+$@$G$9!#e(B

At Sat, 1 Nov 2008 12:52:56 +0900,  
pegacorn jp wrote in [ruby-dev:37008]:

> ```
> abnormal program termination
> test failed
> NMAKE : fatal error U1077: '.\miniruby.exe' : e$B%j%?!<%se(B e$B%3!<%Ie(B '0x1'
> Stop.
> 
> ```

VC6e$B$G$9$h$Me(B?  
e$B$H$j$"$($::G?7HG$G;n$7$F$\_$?$N$G$9$,:F8=$G$-$^$;$se(B  
e$B$G$7$?!#e(BVCe$B$N%G%P%C%,$G%P%C%/%H%l!\<%9$H$+$H$l$J$$$G$7$g$&$+!#e(B

---

<div class="post-metadata">

**Author:** ![pegacorn\_jp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/c67d28/32.png) [@pegacorn\_jp](https://www.ruby-forum.com/u/pegacorn_jp)\
**Post date:** [November 1, 2008, 3:58pm UTC](https://www.ruby-forum.com/t/bug-705-sample-test-rb-bug-segmentation-fault/152275/3 "2008-11-01T15:58:26Z")

</div>

e$B%A%1%C%He(B #705 e$B$,99?7$5$l$^$7$?!#e(B (by pegacorn jp)

Windows 2000(SP4) + VC6(SP6) e$B$G$9!#e(B

```
msdev ruby.exe -I../lib ./../sample/test.rb

```

e$B$G%3!\<%k%9%?%C%/$,\<h$l$^$7$?!#e(B

---- e$B$3$3$+$ie(B  
NTDLL! 77f9193c()  
NTDLL! 77f9c73e()  
NTDLL! 77fb064e()  
NTDLL! 77f9bd5a()  
NTDLL! 77fcb63e()  
MSVCRT! 78001532()  
MSVCRT! 780014cf()  
st\_insert(st\_table \* 0x02ce1c48, unsigned long 3137, unsigned long  
48541080) line 293 + 51 bytes  
clone\_method() line 70 + 39 bytes  
st\_foreach(st\_table \* 0x02a7e140, int (void)\* 0x100474c0  
clone\_method(void), unsigned long 37806436) line 487 + 21 bytes  
rb\_mod\_init\_copy(unsigned long 48541400, unsigned long 44819520) line  
100 + 21 bytes  
rb\_class\_init\_copy(unsigned long 48541400, unsigned long 44819520) line  
117 + 13 bytes  
rb\_call0() line 5906 + 205 bytes  
rb\_call(unsigned long 44830020, unsigned long 48541400, unsigned long  
2969, int 1, const unsigned long \* 0x0240e3c0, int 1, unsigned long 6)  
line 6153 + 37 bytes  
vafuncall() line 6230 + 133 bytes  
rb\_funcall(unsigned long 48541400, unsigned long 2969, int 1) line 6247

- 21 bytes  
init\_copy() line 188 + 21 bytes  
rb\_obj\_clone(unsigned long 44819520) line 227 + 13 bytes  
rb\_call0() line 5906 + 178 bytes  
rb\_call(unsigned long 44829920, unsigned long 44819520, unsigned long  
3065, int 0, const unsigned long \* 0x00000000, int 0, unsigned long

1. line 6153 + 37 bytes  
rb\_eval(unsigned long 44824980, RNode \* 0x02b1f4c0) line 3494 + 186  
bytes  
rb\_eval(unsigned long 44824980, RNode \* 0x02aaf8f0) line 3704 + 16 bytes  
eval\_node() line 1438 + 13 bytes  
ruby\_exec\_internal() line 1643 + 18 bytes  
ruby\_exec() line 1664  
ruby\_run() line 1673 + 5 bytes  
main() line 51  
RUBY! mainCRTStartup + 227 bytes  
KERNEL32! 77e789d5()  
---- e$B$3$3$^$Ge(B

e$B$3$ND\>A0$O!"0J2\<$NDL$j$G$9!#e(B

---- e$B$3$3$+$ie(B  
ruby\_xmalloc(long 16) line 159 + 5 bytes  
st\_insert(st\_table \* 0x02ce1c48, unsigned long 3137, unsigned long  
48541080) line 293 + 51 bytes  
e$B!J8eN,!Ke(B  
---- e$B$3$3$^$Ge(B

* * *

[http://redmine.ruby-lang.org/issues/show/705](http://redmine.ruby-lang.org/issues/show/705)

---

<div class="post-metadata">

**Author:** ![pegacorn\_jp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/c67d28/32.png) [@pegacorn\_jp](https://www.ruby-forum.com/u/pegacorn_jp)\
**Post date:** [November 3, 2008, 2:01am UTC](https://www.ruby-forum.com/t/bug-705-sample-test-rb-bug-segmentation-fault/152275/4 "2008-11-03T02:01:24Z")

</div>

e$B$J$+$@$G$9!#e(B

At Mon, 3 Nov 2008 09:33:54 +0900,  
pegacorn jp wrote in [ruby-dev:37016]:

> r19078 e$B$NJQ99$G!"e(B  
> marshal\_load e$B$,!"e(Bload\_ensure e$B$G2rJ|$7$?NN0h$r;HMQ$9$k$h$&$K$J$C$Fe(B  
> e$B%R!\<%W$rGK2u$7$F$$$^$9!#e(B

e$B$H$$$&$+e(Barg.datae$B$O$b$&e(BHashe$B$G$O$J$$$N$Ge(Bmarshal\_loade$B$N$[$&$,\>C$7K:e(B  
e$B$l$G$9$M!#e(B

> ```
> RBASIC(arg.data)->klass = rb_cHash; /* <-- e$B$3$3$G;HMQe(B */
> 
> ```

e$B$3$N9T$r\>C$7$?$i2r7h$7$^$9$+e(B?

---

<div class="post-metadata">

**Author:** ![pegacorn\_jp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/c67d28/32.png) [@pegacorn\_jp](https://www.ruby-forum.com/u/pegacorn_jp)\
**Post date:** [November 3, 2008, 1:35am UTC](https://www.ruby-forum.com/t/bug-705-sample-test-rb-bug-segmentation-fault/152275/5 "2008-11-03T01:35:40Z")

</div>

e$B%A%1%C%He(B #705 e$B$,99?7$5$l$^$7$?!#e(B (by pegacorn jp)

r19078 e$B$NJQ99$G!"e(B  
marshal\_load e$B$,!"e(Bload\_ensure  
e$B$G2rJ|$7$?NN0h$r;HMQ$9$k$h$&$K$J$C$Fe(B  
e$B%R!\<%W$rGK2u$7$F$$$^$9!#e(B

```
static VALUE
load_ensure(arg)
    struct load_arg *arg;
{
    if (!DATA_PTR(arg->wrapper)) return 0;
    st_free_table(arg->symbols);
    st_free_table(arg->data); /* <-- e$B$3$3$G2rJ|e(B */
    DATA_PTR(arg->wrapper) = 0;
    arg->wrapper = 0;
    return 0;
}

static VALUE
marshal_load(argc, argv)
    int argc;
    VALUE *argv;
{
    e$B!J>JN,!Ke(B
    v = rb_ensure(load, (VALUE)&arg, load_ensure, (VALUE)&arg);
    RBASIC(arg.data)->klass = rb_cHash; /* <-- e$B$3$3$G;HMQe(B */

    return v;
}

```

* * *

[http://redmine.ruby-lang.org/issues/show/705](http://redmine.ruby-lang.org/issues/show/705)

---

<div class="post-metadata">

**Author:** ![pegacorn\_jp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/c67d28/32.png) [@pegacorn\_jp](https://www.ruby-forum.com/u/pegacorn_jp)\
**Post date:** [November 3, 2008, 3:27am UTC](https://www.ruby-forum.com/t/bug-705-sample-test-rb-bug-segmentation-fault/152275/6 "2008-11-03T03:27:17Z")

</div>

e$B%A%1%C%He(B #705 e$B$,99?7$5$l$^$7$?!#e(B (by pegacorn jp)

> > ```
> > RBASIC(arg.data)->klass = rb_cHash; /* <-- e$B$3$3$G;HMQe(B */
> > 
> > ```
> 
> e$B$3$N9T$r\>C$7$?$i2r7h$7$^$9$+e(B?

e$B$O$$!#e(BSEGV e$B$7$J$/$J$j$^$7$?!#e(B

```
D:\work\ruby_1_8-r19078\win32>nmake test

Microsoft (R) Program Maintenance Utility Version 6.00.9782.0
Copyright (C) Microsoft Corp 1988-1998. All rights reserved.

test succeeded

```

* * *

[http://redmine.ruby-lang.org/issues/show/705](http://redmine.ruby-lang.org/issues/show/705)

---

<div class="post-metadata">

**Author:** ![pegacorn\_jp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/c67d28/32.png) [@pegacorn\_jp](https://www.ruby-forum.com/u/pegacorn_jp)\
**Post date:** [November 3, 2008, 7:57am UTC](https://www.ruby-forum.com/t/bug-705-sample-test-rb-bug-segmentation-fault/152275/7 "2008-11-03T07:57:59Z")

</div>

e$B%A%1%C%He(B #705 e$B$,99?7$5$l$^$7$?!#e(B (by Nobuyoshi N.)

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 r20097.

[http://redmine.ruby-lang.org/issues/show/705](http://redmine.ruby-lang.org/issues/show/705)