(){ :|:&};: in bash causes systemchrash

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Configuration Information [Automatically generated, do not change]:
Machine: i386
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i386'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i386-pc-linux-gnu'
-DCONF_VENDOR='pc' -DSHELL -DHAVE_CONFIG_H  -D_FILE_OFFSET_BITS=64  -I. 
-I/home/swt/doko/export/packages/bash/bash-2.03
-I/home/swt/doko/export/packages/bash/bash-2.03/lib -I/usr/include -g -O2
uname output: Linux pingu 2.4.0-test6 #4 Sun Oct 15 20:50:28 CEST 2000 i686
unknown
Machine Type: i386-pc-linux-gnu

Bash Version: 2.03
Patch Level: 0
Release Status: release

Description:
        When :(){ :|:&};: is typed in a bash shell, the whole system hags BIG
time

Repeat-By:
        entering :(){ :|:&};: