Here a back trace when trying to start pymca whch sows this kind of segfault
==31823== Process terminating with default action of signal 11 (SIGSEGV) ==31823== Access not within mapped region at address 0x0 ==31823== at 0x5104E84: QMetaObject::indexOfSignal(char const*) const (in /usr/lib/i386-linux-gnu/libQtCore.so.4.8.6) ==31823== by 0x4EBF679: qpycore_find_signal(QObject*, char const**) (in /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so) ==31823== by 0x4EBF712: sipQtFindUniversalSignal (in /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so) ==31823== by 0x404518F: newSignal (qtlib.c:48) ==31823== by 0x4045D60: sip_api_connect_rx (qtlib.c:439) ==31823== by 0x4E83423: meth_QObject_connect (qobject.sip:601) ==31823== by 0x818AA48: PyEval_EvalFrameEx (ceval.c:4021) ==31823== by 0x80F5B21: function_call.15342 (ceval.c:3253) ==31823== by 0x8141D21: instancemethod_call.8771 (abstract.c:2529) ==31823== by 0x80E4F11: slot_tp_init.25847 (abstract.c:2529) ==31823== by 0x80E81EE: type_call.25511 (typeobject.c:745) ==31823== by 0x818B304: PyEval_EvalFrameEx (abstract.c:2529) cheers Frederic -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org