# Long line may dump core

**URL:** <https://www.ruby-forum.com/t/long-line-may-dump-core/124517>\
**Category:** Development\
**Created:** [December 29, 2007, 4:15pm UTC](https://www.ruby-forum.com/t/long-line-may-dump-core/124517 "2007-12-29T16:15:40Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Yusuke\_ENDOH](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/c89c15/32.png) [@Yusuke\_ENDOH](https://www.ruby-forum.com/u/Yusuke_ENDOH)\
**Post date:** [December 29, 2007, 4:15pm UTC](https://www.ruby-forum.com/t/long-line-may-dump-core/124517/1 "2007-12-29T16:15:40Z")

</div>

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$ ./ruby -e ‘eval(%q(xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx =  
while true; [1, break]))’  
-e:1: [BUG] Segmentation fault  
ruby 1.9.0 (2007-12-29 revision 0) [i686-linux]

## – control frame ---------- c:0004 p:---- s:0010 b:0010 l:000009 d:000009 CFUNC :eval c:0003 p:0009 s:0006 b:0006 l:000005 d:000005 TOP -e:1 c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH :inherited c:0001 p:0000 s:0002 b:0002 l:000001 d:000001 TOP :17

## DBG\> : “-e:1:in `’” – backtrace of native function call (Use addr2line) – 0x80eda35 0x810c3de 0x810c43b 0x80bdf50 0xffffe440 0x8106e11 0x8089645 0x808c8c3 0x809a50b 0x80efd69 0x8087da0 0x8087faf 0x80e21b6 0x80e2348 0x805ca2d 0x805ce95 0x80e3fae 0x80ec273 0x80e7bae 0x80eb474 0x80eb7ab 0x805a3f9 0x805e2e0 0x8057f51 0xb7d44ea8 0x8057e61

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e$B%(%i!\<9T$N\>JN,I=\<(e(B ("…line…" e$B$_$?$$$J$Ne(B)  
e$B$r$9$k;~$Ke(B M17N e$B$,$i$_$Ne(B  
e$BLdBj$,5/$-$F$$$k$h$&$J5$$,$7$^$9!#4{=P$@$C$?$i$4$a$s$J$5$$!#e(B

# M17N e$B$K$O$"$^$j6=L#$,$J$$$N$GJs9p$@$1!#!#!#e(B

Program received signal SIGSEGV, Segmentation fault.  
[Switching to Thread -1210410112 (LWP 20858)]  
rb\_enc\_get\_index (obj=0) at encoding.c:397  
397 switch (BUILTIN\_TYPE(obj)) {  
(gdb) bt  
#0 rb\_enc\_get\_index (obj=0) at encoding.c:397  
#1 0x08106e11 in rb\_enc\_get (obj=0) at encoding.c:499  
#2 0x08089645 in parser\_yyerror (parser=0x81bd1a0, msg=) at parse.y:4607  
#3 0x0808c8c3 in ruby\_yyparse (parser=0x81bd1a0) at parse.c:9380  
#4 0x0809a50b in yycompile0 (arg=136040864, tracing=0) at parse.y:4681  
#5 0x080efd69 in ruby\_suppress\_tracing (func=0x809a4a0 ,  
arg=136040864, always=2)  
at thread.c:2990  
#6 0x08087da0 in yycompile (parser=0x81bd1a0, f=, line=1) at parse.y:4712  
#7 0x08087faf in rb\_parser\_compile\_string (vparser=3081884080,  
f=0xb7b1d1cc “(eval)”,  
s=3081884120, line=1) at parse.y:4770  
#8 0x080e21b6 in rb\_iseq\_compile\_with\_option (src=3081884120,  
file=3081884100, line=3, opt=4)  
at iseq.c:420  
#9 0x080e2348 in rb\_iseq\_compile (src=3081884120, file=3081884100,  
line=3) at iseq.c:450  
#10 0x0805ca2d in eval (self=, src=3081884120,  
scope=4,  
file=0x8120d37 “(eval)”, line=1) at eval.c:1725  
#11 0x0805ce95 in rb\_f\_eval (argc=1, argv=0xb7b48024, self=3082049100)  
at eval.c:1826  
#12 0x080e3fae in call\_cfunc (func=0x805cdc0 \<rb\_f\_eval\>,  
recv=3082049100, len=136041096,  
argc=0, argv=0xb7b48024) at vm\_insnhelper.c:281  
#13 0x080ec273 in vm\_call\_method (th=0x816e990, cfp=0xb7bc7f60, num=1,  
blockptr=0x1, flag=2145,  
id=2728, mn=0xb7b40fac, recv=3082049100, klass=3082049080) at  
vm\_insnhelper.c:371  
#14 0x080e7bae in vm\_eval (th=0x816e990, initial=0) at insns.def:1050  
#15 0x080eb474 in vm\_eval\_body (th=0x816e990) at vm.c:1148  
#16 0x080eb7ab in rb\_iseq\_eval (iseqval=3081884240) at vm.c:1357  
#17 0x0805a3f9 in ruby\_exec\_node (n=0xb7b1d2dc, file=0x81b4d11 “-e”)  
at eval.c:229  
#18 0x0805e2e0 in ruby\_run\_node (n=0xb7b1d2dc) at eval.c:259  
#19 0x08057f51 in main (argc=3, argv=0xbfc66ef4, envp=0xbfc66f04) at  
main.c:39

---

<div class="post-metadata">

**Author:** ![Yusuke\_ENDOH](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/c89c15/32.png) [@Yusuke\_ENDOH](https://www.ruby-forum.com/u/Yusuke_ENDOH)\
**Post date:** [December 30, 2007, 6:40am UTC](https://www.ruby-forum.com/t/long-line-may-dump-core/124517/2 "2007-12-30T06:40:49Z")

</div>

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At Sun, 30 Dec 2007 00:15:14 +0900,  
Yusuke ENDOH wrote in [ruby-dev:32896]:

> e$B%(%i!\<9T$N\>JN,I=\<(e(B ("…line…" e$B$_$?$$$J$Ne(B) e$B$r$9$k;~$Ke(B M17N e$B$,$i$_$Ne(B  
> e$BLdBj$,5/$-$F$$$k$h$&$J5$$,$7$^$9!#4{=P$@$C$?$i$4$a$s$J$5$$!#e(B

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