Core dump stack:

(gdb) backtrace
#0 0x00000008008731f5 in Perl_Gv_AMupdate ()
from /usr/local/lib/perl5/5.16/mach/CORE/libperl.so
#1 0x0000000800873508 in Perl_gv_handler ()
from /usr/local/lib/perl5/5.16/mach/CORE/libperl.so
#2 0x00000008008e6514 in S_curse ()
from /usr/local/lib/perl5/5.16/mach/CORE/libperl.so
#3 0x00000008008e5b92 in Perl_sv_clear ()
from /usr/local/lib/perl5/5.16/mach/CORE/libperl.so
#4 0x00000008008dc369 in Perl_sv_clean_objs ()
from /usr/local/lib/perl5/5.16/mach/CORE/libperl.so
#5 0x00000008008669c7 in perl_destruct ()
from /usr/local/lib/perl5/5.16/mach/CORE/libperl.so
#6 0x0000000000400f39 in main ()