# Def m() yield end; m(&lambda {})

**URL:** <https://www.ruby-forum.com/t/def-m-yield-end-m-lambda/98308>\
**Category:** Development\
**Created:** [July 13, 2006, 7:43pm UTC](https://www.ruby-forum.com/t/def-m-yield-end-m-lambda/98308 "2006-07-13T19:43:05Z")\
**Posts on this page:** 1\
**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 13, 2006, 7:43pm UTC](https://www.ruby-forum.com/t/def-m-yield-end-m-lambda/98308/1 "2006-07-13T19:43:05Z")

</div>

[ruby-dev:29022] e$B$N%9%/%j%W%H$,4V0c$C$F$$$F!":n$j$J$\*$7$F!“e(B  
e$BLVMe@-$r$”$2$F$$$?$H$3$m!"e(Bcore e$B$rEG$/%1!\<%9$,=P$F$-$^$7$?!#e(B

% ./ruby -ve ‘def m() yield end; m(&lambda {})’  
ruby 1.9.0 (2006-07-14) [i686-linux]  
zsh: segmentation fault (core dumped) ./ruby -ve ‘def m() yield end;  
m(&lambda {})’  
% gdb ruby core  
GNU gdb 6.4-debian  
Copyright 2005 Free Software Foundation, Inc.  
GDB is free software, covered by the GNU General Public License, and you  
are  
welcome to change it and/or distribute copies of it under certain  
conditions.  
Type “show copying” to see the conditions.  
There is absolutely no warranty for GDB. Type “show warranty” for  
details.  
This GDB was configured as “i486-linux-gnu”…Using host libthread\_db  
library “/lib/tls/libthread\_db.so.1”.

Core was generated by `./ruby -ve def m() yield end; m(&lambda {})’.  
Program terminated with signal 11, Segmentation fault.

warning: Can’t read pathname for load map: /.  
Reading symbols from /lib/tls/libdl.so.2…done.  
Loaded symbols for /lib/tls/libdl.so.2  
Reading symbols from /lib/tls/libcrypt.so.1…done.  
Loaded symbols for /lib/tls/libcrypt.so.1  
Reading symbols from /lib/tls/libm.so.6…done.  
Loaded symbols for /lib/tls/libm.so.6  
Reading symbols from /lib/tls/libc.so.6…done.  
Loaded symbols for /lib/tls/libc.so.6  
Reading symbols from /lib/ld-linux.so.2…done.  
Loaded symbols for /lib/ld-linux.so.2  
#0 0x08064a86 in rb\_yield\_0 (val=6, self=3084302880, klass=0, flags=0)  
at eval.c:4822  
4822 else if (lambda && RARRAY(val)-\>len != 0 &&  
(gdb) bt  
#0 0x08064a86 in rb\_yield\_0 (val=6, self=3084302880, klass=0, flags=0)  
at eval.c:4822  
#1 0x0805e808 in rb\_eval (self=3084302880, n=)  
at eval.c:3017  
#2 0x0806190b in rb\_call0 (klass=,  
recv=3084302880,  
id=10761, oid=10761, argc=0, argv=0x0, block=0xbfa241d0,  
body=0xb7d5b65c,  
flags=16) at eval.c:5847  
#3 0x08061cf3 in rb\_call (klass=3084307740, recv=3084302880, mid=10761,  
argc=0, argv=0x0, block=0xbfa241d0, scope=CALLING\_FCALL, iter=0)  
at eval.c:5970  
#4 0x0805e4e3 in rb\_eval (self=3084302880, n=)  
at eval.c:3317  
#5 0x0806cef0 in ruby\_exec\_internal () at eval.c:1593  
#6 0x0806cf26 in ruby\_exec () at eval.c:1608  
#7 0x0806cf50 in ruby\_run () at eval.c:1624  
#8 0x0805459c in main (argc=6, argv=0x6, envp=0xbfa244f4) at main.c:43  
(gdb)

e$B$J$\*!"8e$G$^$?JL$K=q$-$^$9$,!"e(B[ruby-dev:29022] e$B$Oe(B  
ArgumentError e$B$NHf3S$r4V0c$C$F$$$F!"7kO@$b4V0c$C$F$$$^$9!#e(B