# Ruby1.9 segmentation fault

**URL:** <https://www.ruby-forum.com/t/ruby1-9-segmentation-fault/153277>\
**Category:** Development\
**Created:** [November 14, 2008, 10:23am UTC](https://www.ruby-forum.com/t/ruby1-9-segmentation-fault/153277 "2008-11-14T10:23:57Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [November 14, 2008, 10:23am UTC](https://www.ruby-forum.com/t/ruby1-9-segmentation-fault/153277/1 "2008-11-14T10:23:57Z")

</div>

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–  
[BUG] Segmentation fault  
ruby 1.9.0 (2008-11-07 revision 20129) [i686-linux]

## – control frame ---------- c:0001 p:---- s:0002 b:0002 l:000001 d:000001 TOP

## – backtrace of native function call (Use addr2line) – 0x811caa4 0x8148128 0x814818b 0x80d00f1 0xffffe440 0x8062071 0x80621bc 0x80623be 0x811fee5 0x8119bd8 0x810ee5f 0x812009b 0x8121081 0x81210f1 0xb7f4e4af 0xb7e66d5e

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e$B$b$J$$$G$9e(B.

\_\_  
----------------------------------------------------\>\> e$B@PDMe(B  
e$B7=\<ye(B \<\<—  
----------------------------------\>\> e-mail: removed\_email\_address@domain.invalid \<\<—

---

<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [November 14, 2008, 2:17pm UTC](https://www.ruby-forum.com/t/ruby1-9-segmentation-fault/153277/2 "2008-11-14T14:17:00Z")

</div>

e$B$1$$$8$e!w$$$7$D$+$G$9e(B.

In [ruby-dev :37095] the message: "[ruby-dev:37095] ruby1.9  
segmentation fault ", on Nov/14 18:20(JST) Keiju ISHITSUKA writes:

> ## 0x8119bd8 0x810ee5f 0x812009b 0x8121081 0x81210f1 0xb7f4e4af 0xb7e66d5e

addr2linee$B;H$($C$F$3$H$J$s$G$9$Me(B?

e$B$3$s$J46$8$G$9e(B:

/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/vm\_dump.c:594  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/error.c:213  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/error.c:226  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/signal.c:545  
??:0  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/gc.c:2259  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/gc.c:1576  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/gc.c:2291  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/thread.c:1104  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/vm\_eval.c:105  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/vm\_eval.c:401  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/thread.c:1159  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/thread.c:421  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/thread\_pthread.c:291  
??:0  
??:0

\_\_  
----------------------------------------------------\>\> e$B@PDMe(B  
e$B7=\<ye(B \<\<—  
----------------------------------\>\> e-mail: removed\_email\_address@domain.invalid \<\<—

---

<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [November 15, 2008, 5:19pm UTC](https://www.ruby-forum.com/t/ruby1-9-segmentation-fault/153277/3 "2008-11-15T17:19:57Z")

</div>

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

In message “Re: [ruby-dev:37095] ruby1.9 segmentation fault”  
on Fri, 14 Nov 2008 18:20:15 +0900, removed\_email\_address@domain.invalid (Keiju  
ISHITSUKA) writes:

| e$B0J2\<$N$h$&$J%a%C%;!\<%8$r=P$7$F=\*N;$7$F$7$^$&$s$G$9$,e(B… |
| --- |
| [BUG] Segmentation fault |
| ruby 1.9.0 (2008-11-07 revision 20129) [i686-linux] |
| e$B$3$N\>pJs$GJ,$+$k$b$N$G$7$g$&$+e(B? e$BB\>$K2?$+M\_$7$$\>pJs$H$+$"$j$^$9e(B? |

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e$B2rJ|=hM}$9$k;~$Ke(BSEGVe$B$7$F$$$k$h$&$G$9$,!#e(Bdfreee$B$r8F$VA0$KMn$Ae(B  
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e$B%G%P%C%,$GDI$$$+$1$F!"Mn$A$k=V4V$Ne(BObjecte$B$NMM;R$,e(B

p _(RVALUE_)obj

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|e$B$J$C$F$$$^$9e(B. e$B%a%b%j$Oe(B3GBe$B$G$9$,e(B, e$B%9%o%C%W$O$^$@B-$j$F$$$k\>u67$G$9e(B.

1.9e$B$Ge(B3000e$B%9%l%C%I!"%W%m%;%9%5%$%:e(B3Ge$B$C$F7P83$J$$$s$G$9$,!"\<B:]e(B  
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e$B$F$k$O$:$J$s$G7W;;$O$"$C$F$^$9$,!#e(B

```
                            e$B$^$D$b$He(B e$B$f$-$R$me(B /:|)
```

---

<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [November 15, 2008, 5:51pm UTC](https://www.ruby-forum.com/t/ruby1-9-segmentation-fault/153277/4 "2008-11-15T17:51:39Z")

</div>

c-yan e$B$G$9e(B.

|ruby 1.9.0 (2008-11-07 revision 20129) [i686-linux]  
e$B$r8+$k$Ke(B 32bit e$B$J$s$G$9$h$Me(B?

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# e$B$=$&$$$&OC$G$O$J$/!"%a%b%jITB-%(%i!\<$r=P$7$FMn$A$l$H$$$&OC$G$9e(B??

(^^;

e$B0J\>e$G$9e(B.

---

<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [November 17, 2008, 10:31am UTC](https://www.ruby-forum.com/t/ruby1-9-segmentation-fault/153277/5 "2008-11-17T10:31:39Z")

</div>

e$B$1$$$8$e!w$$$7$D$+$G$9e(B.

In [ruby-dev :37099] the message: "[ruby-dev:37099] Re: ruby1.9  
segmentation fault ", on Nov/16 01:16(JST) Yukihiro M. writes:

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

> addr2linee$B$N\>pJs$K$h$k$He(BT\_DATAe$B$J%_%V%8%’%/%H$r%U%!%$%J%i%$%6$Ge(B  
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> e$B$k$H$3$s$J$3$H$,5/$-$k$h$&$K;W$$$^$9$,!"$&!\<$`!#e(B

> e$B%G%P%C%,$GDI$$$+$1$F!"Mn$A$k=V4V$Ne(BObjecte$B$NMM;R$,e(B
> 
> p _(RVALUE_)obj
> 
> e$B$H$+$GFI$a$k$H$b$&$A$g$C$H$o$+$k$+$b$7$l$^$;$s!#$,!"$o$+$C$Fe(B  
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> e$B$Q$j$o$+$i$J$$$h$&$K$b;W$$$^$9!#e(B

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e$B$:$l$F0c$&$H$3$m$GMn$A$=$&$G$9$7$M$'e(B…

[ruby-dev:37100]e$B$Ne(Bc-yane$B$5$s$N8@$&DL$j$+$bCN$l$J$$$H$\*$b$C$Fe(B,  
e$B%9%l%C%Ie(B  
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/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/vm\_dump.c:594  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/error.c:213  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/error.c:226  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/signal.c:545  
??:0  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/gc.c:2259  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/gc.c:1576  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/gc.c:2291  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/thread.c:1104

/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/vm\_insnhelper.c:598  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/insns.def:999  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/vm.c:1042  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/vm.c:492  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/vm\_eval.c:490  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/numeric.c:2948  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/vm\_insnhelper.c:378  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/insns.def:999  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/vm.c:1042  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/vm.c:1247  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/eval.c:205  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/eval.c:233  
/home/keiju/var/src/var.lib/ruby/RubyBase/ruby-trunk/main.c:37  
??:0

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> e$B$N$H$3$m$I$&$J$s$G$7$g$&!#e(B

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\_\_  
----------------------------------------------------\>\> e$B@PDMe(B  
e$B7=\<ye(B \<\<—  
----------------------------------\>\> e-mail: removed\_email\_address@domain.invalid \<\<—

---

<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [November 17, 2008, 11:27am UTC](https://www.ruby-forum.com/t/ruby1-9-segmentation-fault/153277/6 "2008-11-17T11:27:24Z")

</div>

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

In message “Re: [ruby-dev:37104] Re: ruby1.9 segmentation fault”  
on Mon, 17 Nov 2008 18:27:20 +0900, removed\_email\_address@domain.invalid  
(e$B@PDM7=\<ye(B) writes:

|[ruby-dev:37100]e$B$Ne(Bc-yane$B$5$s$N8@$&DL$j$+$bCN$l$J$$$H$\*$b$C$Fe(B, e$B%9%l%C%Ie(B  
|e$B@8@.;~$Ke(BNoMemoryError e$B$re(Brescuee$B$9$k$H$I$&$J$k$+$H;W$C$F$d$C$F$\_$^$7$?e(B.  
|  
|e$B$d$O$je(B Segve$B$7$F0J2\<$N46$8$N%a%C%;!\<%8$,=P$^$7$?e(B:

e$B8=\>]$OF1$8$G$9$M!#JQ2=$J$$$s$GIU2CE\*$J\>pJs$O$J$$$H;W$$$^$9!#e(B

|\>1.9e$B$Ge(B3000e$B%9%l%C%I!"%W%m%;%9%5%$%:e(B3Ge$B$C$F7P83$J$$$s$G$9$,!"\<B:]e(B  
|\>e$B$N$H$3$m$I$&$J$s$G$7$g$&!#e(B  
|  
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|e$B$G$9$Me(B.

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|  
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|e$B$F$$$^$7$?e(B. e$B%9%?%C%/$N%5%$%:$C$Fe(B, e$B;XDj$G$-$?$j$G$-$^$9e(B?

Rubye$B%l%Y%k$G$O$G$-$J$$$O$:$G$9!#e(BCe$B%l%Y%k$O$A$g$C$H$o$+$s$J$$e(B  
e$B$G$9$M!#@8@.$9$k=V4V$7$+;XDj$G$-$J$$$O$:$G$9$,!#e(B

---

<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [November 18, 2008, 11:02am UTC](https://www.ruby-forum.com/t/ruby1-9-segmentation-fault/153277/7 "2008-11-18T11:02:08Z")

</div>

ã‘ã„ã˜ã‚…ï¼ ã„ã—ã¤ã‹ã§ã™.

In [ruby-dev :37105] the message: "[ruby-dev:37105] Re: ruby1.9  
segmentation fault ", on Nov/17 19:23(JST) Yukihiro M. writes:

> まつもと ゆきひろです

> |やはり Segvして以下の感じのメッセージが出ました:  
> ç¾è±¡ã¯åŒã˜ã§ã™ã­ã€‚å¤‰åŒ–ãªã„ã‚“ã§ä»˜åŠ çš„ãªæƒ…å ±ã¯ãªã„ã¨æ€ã„ã¾ã™ã€‚

いや. 再現性のある簡単なスクリプトで確かめたって話です. 添付します.

実行は:

% ruby test-th-pf.rb 3 6000

の感じで実行します. 6000がスレッド数になります.

> いや、ほんとにちゃんと動くのか疑問ってことです。メモリの限界  
> に突き当たりそうな。実際当たってるのかもしれません。

うーん. パラメータ(njpb)を調整して調べました.

スレッド数の問題よりもプロセスサイズが問題みたいです. njob=501でプロセ  
スサイズが3067MBだと無事実行が終了し, njob=502だとプロセスが3070MBぐら  
いになると動作しなくなります.

ruby1.9はなかなかすばらしく, 6000スレッドでもそれなりに動作しているみ  
たいです. とはいえ, 個々のスレッドは対したことをやっているわけでもない  
ですが…

> Rubyレベルではできないはずです。Cレベルはちょっとわかんない  
> ですね。生成する瞬間しか指定できないはずですが。

そうですか… limit値にすれば良いような気もするのですが, そう単純でも  
ないものです?

---

<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [November 18, 2008, 1:54pm UTC](https://www.ruby-forum.com/t/ruby1-9-segmentation-fault/153277/8 "2008-11-18T13:54:00Z")

</div>

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In message “Re: [ruby-dev:37111] Re: ruby1.9 segmentation fault”  
on Tue, 18 Nov 2008 18:58:10 +0900, removed\_email\_address@domain.invalid  
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