#0  0x00000000 in ?? ()
#1  0xb7b68e40 in xcall_QVBoxLayout () from /usr/lib/libsmokeqt.so.1
#2  0xb7c4f9e2 in smokeperl_free () from /usr/lib/perl5/auto/Qt/Qt.so
#3  0x080b53ae in Perl_mg_free ()
#4  0x080ce2e8 in Perl_sv_clear ()
#5  0x080ce8c7 in Perl_sv_free ()
#6  0x080ce3e7 in Perl_sv_clear ()
#7  0x080ce8c7 in Perl_sv_free ()
#8  0x080bbb99 in Perl_hv_free_ent ()
#9  0x080bbcf7 in ?? ()
#10 0x08152008 in ?? ()
#11 0x08b8faec in ?? ()
#12 0x08b60490 in ?? ()
#13 0x08b39c20 in ?? ()
#14 0x08152008 in ?? ()
#15 0x08a62300 in ?? ()
#16 0x00000007 in ?? ()
#17 0x08b8faec in ?? ()
#18 0x08b8faec in ?? ()
#19 0x08b5dfa0 in ?? ()
#20 0xbfa836e8 in ?? ()
#21 0x080bda29 in Perl_hv_undef ()
Backtrace stopped: frame did not save the PC