# SEGV by ./ruby -v -rprofile -e ''

**URL:** <https://www.ruby-forum.com/t/segv-by-ruby-v-rprofile-e/119841>\
**Category:** Development\
**Created:** [November 11, 2007, 5:32am UTC](https://www.ruby-forum.com/t/segv-by-ruby-v-rprofile-e/119841 "2007-11-11T05:32:05Z")\
**Posts on this page:** 2\
**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:** [November 11, 2007, 5:32am UTC](https://www.ruby-forum.com/t/segv-by-ruby-v-rprofile-e/119841/1 "2007-11-11T05:32:05Z")

</div>

e$B$=$&$$$($P!"e(Bprofile e$B$,e(B [BUG] Segmentation fault  
e$B$K$J$j$^$9!#e(B

## % ./ruby -v -rprofile -e ‘’ ruby 1.9.0 (2007-11-10 patchlevel 0) [i686-linux] ./ruby: – control frame ---------- c:0002 p:-33979392 s:0003 b:0003 l:002340 d:002340 TOP c:0001 p:---- s:0001 b:-001 l:000000 d:000000 ------

– backtrace of native function call (Use addr2line) –  
0x80e7195  
0x8104a73  
0x8104b3b  
0x80b97e0  
0xb7fe4420  
0x80dcd40  
0x805fd92  
0x80e7735  
0x80e8b89  
0x80e8bd7  
0x80e62fc  
0x805a898  
0x805abb0  
0x80b7695  
0x80b8fdc  
0x80de96a  
0x80b7950  
0x805d334  
0x8057a38  
0xb7e4eea8  
0x8057951

---

<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:** [December 10, 2007, 5:03pm UTC](https://www.ruby-forum.com/t/segv-by-ruby-v-rprofile-e/119841/2 "2007-12-10T17:03:12Z")

</div>

e$B1sF#$H?=$7$^$9!#e(B

07/11/11 e$B$Ke(B Tanaka A.[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) e$B$5$s$O=q$-$^$7$?e(B:

> e$B$=$&$$$($P!"e(Bprofile e$B$,e(B [BUG] Segmentation fault e$B$K$J$j$^$9!#e(B
> 
> % ./ruby -v -rprofile -e ‘’  
> (snip)

e$BLdBj$r4JC1$K$G$-$^$7$?!#e(B

$ cat t.rb  
set\_trace\_func(proc {})  
$ ./ruby -rt -e ‘’  
(snip)  
[BUG] Segmentation fault  
ruby 1.9.0 (2007-12-10) [i686-linux]

e$B$A$c$s$HDI$C$F$$$^$;$s$,!"$\*$=$i$/0J2\<$bF1$8M}M3$GMn$A$F$$$^$9!#e(B

$ ./ruby -e ‘set\_trace\_func(proc {}); require “zlib”’  
(snip)  
[BUG] Segmentation fault  
ruby 1.9.0 (2007-12-10) [i686-linux]

e$BB?J,$3$s$J\>u67$G$9!#e(B

- rb\_vm\_call\_cfunc e$B$,:n$ke(B iseq e$B$Oe(B (NODE\*)0  
e$B$G:n$i$l$F$$$F!"e(B  
e$B$=$Ne(B iseq e$B$Oe(B local\_size e$B$,e(B 0  
(e$B$^$?$OL$=i4|2=!)e(B) e$B$K$J$C$F$$$ke(B

- iseq-\>local\_size e$B$,e(B 0 e$B$N\>uBV$Ge(B vm\_make\_env\_object  
e$B$9$k$He(B  
svar (= lftp[-1]) e$B$,;2\>H$G$-$J$$4D6-$,F@$i$l$ke(B (e$B;2\>H$7$?$ie(B  
segv)

- ruby\_cref e$B$Oe(B get\_cref e$B$He(B lfp\_get\_special\_cref e$B7PM3$Ge(B  
svar e$B$re(B  
e$B;2\>H$9$ke(B

- rb\_vm\_call\_cfunc e$B$N=\*HW$Ge(B call\_trace\_proc  
e$B$,8F$S=P$5$l!"$=$NCf$Ge(B  
rb\_binding\_new e$B$,8F$S=P$5$l$ke(B

- rb\_binding\_new e$B$Oe(B vm\_make\_env\_object e$B$r\<B9T$7!"$=$ND\>8e$Ke(B  
ruby\_cref e$B$r\<B9T$9$ke(B =\> segv

e$BMWLs$9$k$H!"e(Bset\_trace\_func e$B$He(B rb\_vm\_call\_cfunc  
e$B$rF1;~$K;HMQ$9$k$He(B  
segv e$B$9$k$s$@$H;W$$$^$9!#e(B

e$B$I$&BP=h$9$Y$-$+$o$+$j$^$;$s$,!"Nc$($Pe(B iseq\_compile e$B$Ge(B  
(NODE\*)0 e$B$Ne(B  
e$B;~$be(B local\_size e$B$r=i4|2=$7$F$d$l$P$h$$$H;W$$$^$9!#e(B

# Index: compile.c

— compile.c (revision 14185)  
+++ compile.c (working copy)  
@@ -145,6 +145,7 @@

```
 if (node == 0) {

```

COMPILE(ret, “nil”, node);

- iseq\_set\_local\_table(iseq, 0);  
}  
else if (nd\_type(node) == NODE\_SCOPE) {  
/\* iseq type of top, method, class, block \*/