Hello, My C++ application which uses Qt and libsigc++ libraries is stable if all 3 components are compiled with GCC 4.4.7 If my app is compiled with GCC 4.7.1 it crashes in random time (approx. 1 hour from start) and place as detected by GDB. I tried to run app with Valgrind, but didn't have crash yet. Output from Valgrind (following errors are not present if my app is compiled with GCC 4.4.7): ==8242== 110634 errors in context 51 of 52: ==8242== Invalid read of size 8 ==8242== at 0x126B63: sigc::internal::temp_slot_list::~temp_slot_list() (stl_list.h:358) ==8242== by 0x13F62C: sigc::internal::signal_emit2<void, QString const*, QString const&, sigc::nil>::emit(sigc::internal::signal_impl*, QString const* const&, QString const&) (signal.h:1248) ==8242== by 0x13F9B2: ff::fu::ga(QIODevice&) const (signal.h:2887) ==8242== by 0x13FBC5: ff::hk::je() (main.cpp:1290) ==8242== by 0x6555E89: QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x654FF7B: QObject::event(QEvent*) (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x5003C1D: QApplicationPrivate::notify_helper(QObject*, QEvent*) (in /usr/lib64/qt4/libQtGui.so.4.8.2) ==8242== by 0x500D3C6: QApplication::notify(QObject*, QEvent*) (in /usr/lib64/qt4/libQtGui.so.4.8.2) ==8242== by 0x653111A: QCoreApplication::notifyInternal(QObject*, QEvent*) (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x657BAF9: QTimerInfoList::activateTimers() (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x657C13F: QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x50F7637: QEventDispatcherX11::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (in /usr/lib64/qt4/libQtGui.so.4.8.2) ==8242== Address 0x105aa288 is 0 bytes after a block of size 24 alloc'd ==8242== at 0x4C2A0F1: operator new(unsigned long) (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==8242== by 0x68BE899: sigc::signal_base::impl() const (in /usr/lib64/libsigc-2.0.so.0.0.0) ==8242== by 0x68BEC5C: sigc::signal_base::connect(sigc::slot_base const&) (in /usr/lib64/libsigc-2.0.so.0.0.0) ==8242== by 0x1408FB: ff::hk::hk(ff::gs*, QExplicitlySharedDataPointer<de> const&) (signal.h:2873) ==8242== by 0x140BA4: ff::jh::jj(QExplicitlySharedDataPointer<de> const&) (main.cpp:1331) ==8242== by 0x123332: _ZN2sx3aduEv.part.232 (main.cpp:4858) ==8242== by 0x14E8B7: sx::aew(int, int) (main.cpp:5066) ==8242== by 0x123AA0: _ZN2sx18qt_static_metacallEP7QObjectN11QMetaObject4CallEiPPv.part.236 (main.cpp.moc:716) ==8242== by 0x6555E89: QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x56D62F4: QAbstractItemView::clicked(QModelIndex const&) (in /usr/lib64/qt4/libQtGui.so.4.8.2) ==8242== by 0x56DE864: QAbstractItemView::mouseReleaseEvent(QMouseEvent*) (in /usr/lib64/qt4/libQtGui.so.4.8.2) ==8242== by 0x507AA44: QWidget::event(QEvent*) (in /usr/lib64/qt4/libQtGui.so.4.8.2) ==8242== ==8242== ==8242== 110634 errors in context 52 of 52: ==8242== Invalid read of size 8 ==8242== at 0x126ADA: sigc::internal::temp_slot_list::temp_slot_list(std::list<sigc::slot_base, std::allocator<sigc::slot_base> >&) (stl_list.h:348) ==8242== by 0x13F5E0: sigc::internal::signal_emit2<void, QString const*, QString const&, sigc::nil>::emit(sigc::internal::signal_impl*, QString const* const&, QString const&) (signal.h:1242) ==8242== by 0x13F9B2: ff::fu::ga(QIODevice&) const (signal.h:2887) ==8242== by 0x13FBC5: ff::hk::je() (main.cpp:1290) ==8242== by 0x6555E89: QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x654FF7B: QObject::event(QEvent*) (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x5003C1D: QApplicationPrivate::notify_helper(QObject*, QEvent*) (in /usr/lib64/qt4/libQtGui.so.4.8.2) ==8242== by 0x500D3C6: QApplication::notify(QObject*, QEvent*) (in /usr/lib64/qt4/libQtGui.so.4.8.2) ==8242== by 0x653111A: QCoreApplication::notifyInternal(QObject*, QEvent*) (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x657BAF9: QTimerInfoList::activateTimers() (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x657C13F: QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x50F7637: QEventDispatcherX11::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (in /usr/lib64/qt4/libQtGui.so.4.8.2) ==8242== Address 0x105aa288 is 0 bytes after a block of size 24 alloc'd ==8242== at 0x4C2A0F1: operator new(unsigned long) (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==8242== by 0x68BE899: sigc::signal_base::impl() const (in /usr/lib64/libsigc-2.0.so.0.0.0) ==8242== by 0x68BEC5C: sigc::signal_base::connect(sigc::slot_base const&) (in /usr/lib64/libsigc-2.0.so.0.0.0) ==8242== by 0x1408FB: ff::hk::hk(ff::gs*, QExplicitlySharedDataPointer<de> const&) (signal.h:2873) ==8242== by 0x140BA4: ff::jh::jj(QExplicitlySharedDataPointer<de> const&) (main.cpp:1331) ==8242== by 0x123332: _ZN2sx3aduEv.part.232 (main.cpp:4858) ==8242== by 0x14E8B7: sx::aew(int, int) (main.cpp:5066) ==8242== by 0x123AA0: _ZN2sx18qt_static_metacallEP7QObjectN11QMetaObject4CallEiPPv.part.236 (main.cpp.moc:716) ==8242== by 0x6555E89: QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (in /usr/lib64/qt4/libQtCore.so.4.8.2) ==8242== by 0x56D62F4: QAbstractItemView::clicked(QModelIndex const&) (in /usr/lib64/qt4/libQtGui.so.4.8.2) ==8242== by 0x56DE864: QAbstractItemView::mouseReleaseEvent(QMouseEvent*) (in /usr/lib64/qt4/libQtGui.so.4.8.2) ==8242== by 0x507AA44: QWidget::event(QEvent*) (in /usr/lib64/qt4/libQtGui.so.4.8.2) Output from GDB: *** glibc detected *** /usr/local/bin/qemplayer: munmap_chunk(): invalid pointer: 0x00000068df01f8a0 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x73655)[0x39767b1d655] /usr/lib64/qt4/libQtGui.so.4(+0x1e67fd)[0x3976933c7fd] /usr/lib64/qt4/libQtGui.so.4(_ZN10QBoxLayout10invalidateEv+0x31)[0x39769338181] /usr/lib64/qt4/libQtGui.so.4(+0x71fd12)[0x39769875d12] /usr/lib64/qt4/libQtGui.so.4(_ZN6QLabel7setTextERK7QString+0x14e)[0x3976987760e] /usr/local/bin/qemplayer(+0x36c6d)[0x68daffac6d] /usr/local/bin/qemplayer(+0x38e5c)[0x68daffce5c] /usr/local/bin/qemplayer(+0x37618)[0x68daffb618] /usr/local/bin/qemplayer(+0x379b3)[0x68daffb9b3] /usr/local/bin/qemplayer(+0x37bc6)[0x68daffbbc6] /usr/lib64/qt4/libQtCore.so.4(_ZN11QMetaObject8activateEP7QObjectPKS_iPPv+0x31a)[0x39768804e8a] /usr/lib64/qt4/libQtCore.so.4(_ZN7QObject5eventEP6QEvent+0xcc)[0x397687fef7c] /usr/lib64/qt4/libQtGui.so.4(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0xde)[0x39769322c1e] /usr/lib64/qt4/libQtGui.so.4(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x257)[0x3976932c3c7] /usr/lib64/qt4/libQtCore.so.4(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0xab)[0x397687e011b] /usr/lib64/qt4/libQtCore.so.4(+0x250afa)[0x3976882aafa] /usr/lib64/qt4/libQtCore.so.4(_ZN20QEventDispatcherUNIX13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE+0x120)[0x3976882b140] /usr/lib64/qt4/libQtGui.so.4(+0x2c0638)[0x39769416638] /usr/lib64/qt4/libQtCore.so.4(_ZN10QEventLoop13processEventsE6QFlagsINS_17ProcessEventsFlagEE+0x42)[0x397687de2f2] /usr/lib64/qt4/libQtCore.so.4(_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE+0x17c)[0x397687de86c] /usr/lib64/qt4/libQtCore.so.4(_ZN16QCoreApplication4execEv+0xd9)[0x397687e6809] /usr/local/bin/qemplayer(+0x1996d)[0x68dafdd96d] /lib64/libc.so.6(__libc_start_main+0xfd)[0x39767ac904d] /usr/local/bin/qemplayer(+0x19ba9)[0x68dafddba9] Program received signal SIGABRT, Aborted. 0x0000039767adc405 in raise () from /lib64/libc.so.6 (gdb) bt #0 0x0000039767adc405 in raise () from /lib64/libc.so.6 #1 0x0000039767add69f in abort () from /lib64/libc.so.6 #2 0x0000039767b17fff in __libc_message () from /lib64/libc.so.6 #3 0x0000039767b1d655 in malloc_printerr () from /lib64/libc.so.6 #4 0x000003976933c7fd in QVector<QLayoutStruct>::clear() () from /usr/lib64/qt4/libQtGui.so.4 #5 0x0000039769338181 in QBoxLayout::invalidate() () from /usr/lib64/qt4/libQtGui.so.4 #6 0x0000039769875d12 in QLabelPrivate::updateLabel() () from /usr/lib64/qt4/libQtGui.so.4 #7 0x000003976987760e in QLabel::setText(QString const&) () from /usr/lib64/qt4/libQtGui.so.4 #8 0x00000068daffac6d in sigc::internal::signal_emit1<void, QString const&, sigc::nil>::emit (impl=0x68df01f880, _A_a1=...) at /usr/include/sigc++-2.0/sigc++/signal.h:1006 #9 0x00000068daffce5c in emit (_A_a1=..., this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2777 #10 operator() (_A_a1=..., this=0x68df0166a0) at /usr/include/sigc++-2.0/sigc++/signal.h:2785 #11 ff::hk::it (this=0x68df016670, iu=0x68db21f170, iv=...) at main.cpp:1203 #12 0x00000068daffb618 in sigc::internal::signal_emit2<void, QString const*, QString const&, sigc::nil>::emit (impl=0x68dee89f60, _A_a1=@0x3c48508c8f8: 0x68db21f170, _A_a2=...) at /usr/include/sigc++-2.0/sigc++/signal.h:1248 #13 0x00000068daffb9b3 in emit (_A_a2=..., _A_a1=@0x3c48508c8f8: 0x68db21f170, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2887 #14 operator() (_A_a2=..., _A_a1=@0x3c48508c8f8: 0x68db21f170, this=0x68df0166c0) at /usr/include/sigc++-2.0/sigc++/signal.h:2895 #15 ff::fu::ga (this=this@entry=0x68df016688, gb=...) at main.cpp:982 #16 0x00000068daffbbc6 in ff::hk::je (this=0x68df016670) at main.cpp:1290 #17 0x0000039768804e8a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4 #18 0x00000397687fef7c in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #19 0x0000039769322c1e in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #20 0x000003976932c3c7 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #21 0x00000397687e011b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #22 0x000003976882aafa in QTimerInfoList::activateTimers() () from /usr/lib64/qt4/libQtCore.so.4 #23 0x000003976882b140 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #24 0x0000039769416638 in QEventDispatcherX11::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4 #25 0x00000397687de2f2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #26 0x00000397687de86c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #27 0x00000397687e6809 in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4 #28 0x00000068dafdd96d in main (aik=1, Pcarg=0x3c48508ec88) at main.cpp:5689 *** glibc detected *** /usr/local/bin/qemplayer: munmap_chunk(): invalid pointer: 0x00000019e0e8fcf0 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x73655)[0x3940a67d655] /usr/lib64/qt4/libQtCore.so.4(_ZN7QString4freeEPNS_4DataE+0xb8)[0x3940b22f188] /usr/lib64/qt4/libQtGui.so.4(+0x78357a)[0x3940c43957a] /usr/lib64/qt4/libQtGui.so.4(_ZN12QProgressBar8setValueEi+0xe7)[0x3940c4397f7] /usr/local/bin/qemplayer(+0x2c16f)[0x19dd53516f] /usr/local/bin/qemplayer(+0x38c1d)[0x19dd541c1d] /usr/local/bin/qemplayer(+0x38d56)[0x19dd541d56] /usr/local/bin/qemplayer(+0x37618)[0x19dd540618] /usr/local/bin/qemplayer(+0x379b3)[0x19dd5409b3] /usr/local/bin/qemplayer(+0x37bc6)[0x19dd540bc6] /usr/lib64/qt4/libQtCore.so.4(_ZN11QMetaObject8activateEP7QObjectPKS_iPPv+0x31a)[0x3940b364e8a] /usr/lib64/qt4/libQtCore.so.4(_ZN7QObject5eventEP6QEvent+0xcc)[0x3940b35ef7c] /usr/lib64/qt4/libQtGui.so.4(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0xde)[0x3940be82c1e] /usr/lib64/qt4/libQtGui.so.4(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x257)[0x3940be8c3c7] /usr/lib64/qt4/libQtCore.so.4(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0xab)[0x3940b34011b] /usr/lib64/qt4/libQtCore.so.4(+0x250afa)[0x3940b38aafa] /usr/lib64/qt4/libQtCore.so.4(_ZN20QEventDispatcherUNIX13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE+0x120)[0x3940b38b140] /usr/lib64/qt4/libQtGui.so.4(+0x2c0638)[0x3940bf76638] /usr/lib64/qt4/libQtCore.so.4(_ZN10QEventLoop13processEventsE6QFlagsINS_17ProcessEventsFlagEE+0x42)[0x3940b33e2f2] /usr/lib64/qt4/libQtCore.so.4(_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE+0x17c)[0x3940b33e86c] /usr/lib64/qt4/libQtCore.so.4(_ZN16QCoreApplication4execEv+0xd9)[0x3940b346809] /usr/local/bin/qemplayer(+0x1996d)[0x19dd52296d] /lib64/libc.so.6(__libc_start_main+0xfd)[0x3940a62904d] /usr/local/bin/qemplayer(+0x19ba9)[0x19dd522ba9] Program received signal SIGABRT, Aborted. 0x000003940a63c405 in raise () from /lib64/libc.so.6 (gdb) bt #0 0x000003940a63c405 in raise () from /lib64/libc.so.6 #1 0x000003940a63d69f in abort () from /lib64/libc.so.6 #2 0x000003940a677fff in __libc_message () from /lib64/libc.so.6 #3 0x000003940a67d655 in malloc_printerr () from /lib64/libc.so.6 #4 0x000003940b22f188 in QString::free(QString::Data*) () from /usr/lib64/qt4/libQtCore.so.4 #5 0x000003940c43957a in QProgressBarPrivate::repaintRequired() const () from /usr/lib64/qt4/libQtGui.so.4 #6 0x000003940c4397f7 in QProgressBar::setValue(int) () from /usr/lib64/qt4/libQtGui.so.4 #7 0x00000019dd53516f in sx::acr (this=0x3e760bef6c0, iu=<optimized out>) at main.cpp:4662 #8 0x00000019dd541c1d in sigc::internal::signal_emit1<void, QString const*, sigc::nil>::emit (impl=0x19e0ddcd90, _A_a1=@0x3e760bee9d8: 0x19dd764170) at /usr/include/sigc++-2.0/sigc++/signal.h:1006 #9 0x00000019dd541d56 in emit (_A_a1=@0x3e760bee9d8: 0x19dd764170, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2777 #10 operator() (_A_a1=@0x3e760bee9d8: 0x19dd764170, this=0x3e760bf09c0) at /usr/include/sigc++-2.0/sigc++/signal.h:2785 #11 ff::hk::it (this=<optimized out>, iu=0x19dd764170, iv=...) at main.cpp:1217 #12 0x00000019dd540618 in sigc::internal::signal_emit2<void, QString const*, QString const&, sigc::nil>::emit (impl=0x19e0e8fcd0, _A_a1=@0x3e760beeac8: 0x19dd764170, _A_a2=...) at /usr/include/sigc++-2.0/sigc++/signal.h:1248 #13 0x00000019dd5409b3 in emit (_A_a2=..., _A_a1=@0x3e760beeac8: 0x19dd764170, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2887 #14 operator() (_A_a2=..., _A_a1=@0x3e760beeac8: 0x19dd764170, this=0x19e1036290) at /usr/include/sigc++-2.0/sigc++/signal.h:2895 #15 ff::fu::ga (this=this@entry=0x19e1036258, gb=...) at main.cpp:982 #16 0x00000019dd540bc6 in ff::hk::je (this=0x19e1036240) at main.cpp:1290 #17 0x000003940b364e8a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4 #18 0x000003940b35ef7c in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #19 0x000003940be82c1e in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #20 0x000003940be8c3c7 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #21 0x000003940b34011b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #22 0x000003940b38aafa in QTimerInfoList::activateTimers() () from /usr/lib64/qt4/libQtCore.so.4 #23 0x000003940b38b140 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #24 0x000003940bf76638 in QEventDispatcherX11::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4 #25 0x000003940b33e2f2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #26 0x000003940b33e86c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #27 0x000003940b346809 in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4 #28 0x00000019dd52296d in main (aik=1, Pcarg=0x3e760bf0e58) at main.cpp:5689 *** glibc detected *** /usr/local/bin/qemplayer: munmap_chunk(): invalid pointer: 0x0000006448e8ac90 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x73655)[0x38bebb2e655] /usr/local/bin/qemplayer(+0x1eb5e)[0x6446e19b5e] /usr/local/bin/qemplayer(+0x38c32)[0x6446e33c32] /usr/local/bin/qemplayer(+0x38cbf)[0x6446e33cbf] /usr/local/bin/qemplayer(+0x37618)[0x6446e32618] /usr/local/bin/qemplayer(+0x379b3)[0x6446e329b3] /usr/local/bin/qemplayer(+0x37bc6)[0x6446e32bc6] /usr/lib64/qt4/libQtCore.so.4(_ZN11QMetaObject8activateEP7QObjectPKS_iPPv+0x31a)[0x38bec815e8a] /usr/lib64/qt4/libQtCore.so.4(_ZN7QObject5eventEP6QEvent+0xcc)[0x38bec80ff7c] /usr/lib64/qt4/libQtGui.so.4(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0xde)[0x38bed333c1e] /usr/lib64/qt4/libQtGui.so.4(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x257)[0x38bed33d3c7] /usr/lib64/qt4/libQtCore.so.4(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0xab)[0x38bec7f111b] /usr/lib64/qt4/libQtCore.so.4(+0x250afa)[0x38bec83bafa] /usr/lib64/qt4/libQtCore.so.4(_ZN20QEventDispatcherUNIX13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE+0x120)[0x38bec83c140] /usr/lib64/qt4/libQtGui.so.4(+0x2c0638)[0x38bed427638] /usr/lib64/qt4/libQtCore.so.4(_ZN10QEventLoop13processEventsE6QFlagsINS_17ProcessEventsFlagEE+0x42)[0x38bec7ef2f2] /usr/lib64/qt4/libQtCore.so.4(_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE+0x17c)[0x38bec7ef86c] /usr/lib64/qt4/libQtCore.so.4(_ZN16QCoreApplication4execEv+0xd9)[0x38bec7f7809] /usr/local/bin/qemplayer(+0x1996d)[0x6446e1496d] /lib64/libc.so.6(__libc_start_main+0xfd)[0x38bebada04d] /usr/local/bin/qemplayer(+0x19ba9)[0x6446e14ba9] Program received signal SIGABRT, Aborted. 0x0000038bebaed405 in raise () from /lib64/libc.so.6 (gdb) bt #0 0x0000038bebaed405 in raise () from /lib64/libc.so.6 #1 0x0000038bebaee69f in abort () from /lib64/libc.so.6 #2 0x0000038bebb28fff in __libc_message () from /lib64/libc.so.6 #3 0x0000038bebb2e655 in malloc_printerr () from /lib64/libc.so.6 #4 0x0000006446e19b5e in deallocate (__p=0x6448e8ac90, this=<optimized out>) at /usr/lib/gcc/x86_64-pc-linux-gnu/4.7.1/include/g++-v4/ext/new_allocator.h:100 #5 _M_put_node (__p=0x6448e8ac90, this=<optimized out>) at /usr/lib/gcc/x86_64-pc-linux-gnu/4.7.1/include/g++-v4/bits/stl_list.h:356 Python Exception <type 'exceptions.ValueError'> Cannot find type std::list<sigc::slot_base, std::allocator<sigc::slot_base> >::iterator::_Node: #6 _M_erase (__position=, this=0x6448c29ce8) at /usr/lib/gcc/x86_64-pc-linux-gnu/4.7.1/include/g++-v4/bits/stl_list.h:1600 Python Exception <type 'exceptions.ValueError'> Cannot find type std::list<sigc::slot_base, std::allocator<sigc::slot_base> >::iterator::_Node: #7 erase (__position=, this=0x6448c29ce8) at /usr/lib/gcc/x86_64-pc-linux-gnu/4.7.1/include/g++-v4/bits/list.tcc:113 #8 sigc::internal::temp_slot_list::~temp_slot_list (this=<optimized out>, __in_chrg=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal_base.h:188 #9 0x0000006446e33c32 in sigc::internal::signal_emit1<void, QString const*, sigc::nil>::emit (impl=0x6448c29ce0, _A_a1=@0x3ecf23e19f8: 0x64470561a0) at /usr/include/sigc++-2.0/sigc++/signal.h:1006 #10 0x0000006446e33cbf in emit (_A_a1=@0x3ecf23e19f8: 0x64470561a0, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2777 #11 operator() (_A_a1=@0x3ecf23e19f8: 0x64470561a0, this=0x3ecf23e39f0) at /usr/include/sigc++-2.0/sigc++/signal.h:2785 #12 ff::hk::it (this=<optimized out>, iu=0x64470561a0, iv=...) at main.cpp:1242 #13 0x0000006446e32618 in sigc::internal::signal_emit2<void, QString const*, QString const&, sigc::nil>::emit (impl=0x6448e8ac70, _A_a1=@0x3ecf23e1ae8: 0x64470561a0, _A_a2=...) at /usr/include/sigc++-2.0/sigc++/signal.h:1248 #14 0x0000006446e329b3 in emit (_A_a2=..., _A_a1=@0x3ecf23e1ae8: 0x64470561a0, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2887 #15 operator() (_A_a2=..., _A_a1=@0x3ecf23e1ae8: 0x64470561a0, this=0x6448e99220) at /usr/include/sigc++-2.0/sigc++/signal.h:2895 #16 ff::fu::ga (this=this@entry=0x6448e991e8, gb=...) at main.cpp:982 #17 0x0000006446e32bc6 in ff::hk::je (this=0x6448e991d0) at main.cpp:1290 #18 0x0000038bec815e8a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4 #19 0x0000038bec80ff7c in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #20 0x0000038bed333c1e in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #21 0x0000038bed33d3c7 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #22 0x0000038bec7f111b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #23 0x0000038bec83bafa in QTimerInfoList::activateTimers() () from /usr/lib64/qt4/libQtCore.so.4 #24 0x0000038bec83c140 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #25 0x0000038bed427638 in QEventDispatcherX11::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4 #26 0x0000038bec7ef2f2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #27 0x0000038bec7ef86c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #28 0x0000038bec7f7809 in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4 #29 0x0000006446e1496d in main (aik=1, Pcarg=0x3ecf23e3e78) at main.cpp:5689 *** glibc detected *** /usr/local/bin/qemplayer: munmap_chunk(): invalid pointer: 0x000000312884f850 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x73655)[0x3a1b5455655] /usr/lib64/qt4/libQtCore.so.4(_ZN7QString4freeEPNS_4DataE+0xb8)[0x3a1b6007188] /usr/lib64/qt4/libQtCore.so.4(_ZN7QStringaSERKS_+0x42)[0x3a1b6007c02] /usr/lib64/qt4/libQtGui.so.4(+0x72106a)[0x3a1b71af06a] /usr/lib64/qt4/libQtGui.so.4(_ZN6QLabel7setTextERK7QString+0x9a)[0x3a1b71af55a] /usr/local/bin/qemplayer(+0x36c6d)[0x3126706c6d] /usr/local/bin/qemplayer(+0x38e5c)[0x3126708e5c] /usr/local/bin/qemplayer(+0x37618)[0x3126707618] /usr/local/bin/qemplayer(+0x379b3)[0x31267079b3] /usr/local/bin/qemplayer(+0x37bc6)[0x3126707bc6] /usr/lib64/qt4/libQtCore.so.4(_ZN11QMetaObject8activateEP7QObjectPKS_iPPv+0x31a)[0x3a1b613ce8a] /usr/lib64/qt4/libQtCore.so.4(_ZN7QObject5eventEP6QEvent+0xcc)[0x3a1b6136f7c] /usr/lib64/qt4/libQtGui.so.4(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0xde)[0x3a1b6c5ac1e] /usr/lib64/qt4/libQtGui.so.4(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x257)[0x3a1b6c643c7] /usr/lib64/qt4/libQtCore.so.4(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0xab)[0x3a1b611811b] /usr/lib64/qt4/libQtCore.so.4(+0x250afa)[0x3a1b6162afa] /usr/lib64/qt4/libQtCore.so.4(_ZN20QEventDispatcherUNIX13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE+0x120)[0x3a1b6163140] /usr/lib64/qt4/libQtGui.so.4(+0x2c0638)[0x3a1b6d4e638] /usr/lib64/qt4/libQtCore.so.4(_ZN10QEventLoop13processEventsE6QFlagsINS_17ProcessEventsFlagEE+0x42)[0x3a1b61162f2] /usr/lib64/qt4/libQtCore.so.4(_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE+0x17c)[0x3a1b611686c] /usr/lib64/qt4/libQtCore.so.4(_ZN16QCoreApplication4execEv+0xd9)[0x3a1b611e809] /usr/local/bin/qemplayer(+0x1996d)[0x31266e996d] /lib64/libc.so.6(__libc_start_main+0xfd)[0x3a1b540104d] /usr/local/bin/qemplayer(+0x19ba9)[0x31266e9ba9] Program received signal SIGABRT, Aborted. 0x000003a1b5414405 in raise () from /lib64/libc.so.6 (gdb) bt #0 0x000003a1b5414405 in raise () from /lib64/libc.so.6 #1 0x000003a1b541569f in abort () from /lib64/libc.so.6 #2 0x000003a1b544ffff in __libc_message () from /lib64/libc.so.6 #3 0x000003a1b5455655 in malloc_printerr () from /lib64/libc.so.6 #4 0x000003a1b6007188 in QString::free(QString::Data*) () from /usr/lib64/qt4/libQtCore.so.4 #5 0x000003a1b6007c02 in QString::operator=(QString const&) () from /usr/lib64/qt4/libQtCore.so.4 #6 0x000003a1b71af06a in QLabelPrivate::clearContents() () from /usr/lib64/qt4/libQtGui.so.4 #7 0x000003a1b71af55a in QLabel::setText(QString const&) () from /usr/lib64/qt4/libQtGui.so.4 #8 0x0000003126706c6d in sigc::internal::signal_emit1<void, QString const&, sigc::nil>::emit (impl=0x312884f830, _A_a1=...) at /usr/include/sigc++-2.0/sigc++/signal.h:1006 #9 0x0000003126708e5c in emit (_A_a1=..., this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2777 #10 operator() (_A_a1=..., this=0x312879cb10) at /usr/include/sigc++-2.0/sigc++/signal.h:2785 #11 ff::hk::it (this=0x312879cae0, iu=0x312692b170, iv=...) at main.cpp:1203 #12 0x0000003126707618 in sigc::internal::signal_emit2<void, QString const*, QString const&, sigc::nil>::emit (impl=0x31285c01b0, _A_a1=@0x3eea93b5a48: 0x312692b170, _A_a2=...) at /usr/include/sigc++-2.0/sigc++/signal.h:1248 #13 0x00000031267079b3 in emit (_A_a2=..., _A_a1=@0x3eea93b5a48: 0x312692b170, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2887 #14 operator() (_A_a2=..., _A_a1=@0x3eea93b5a48: 0x312692b170, this=0x312879cb30) at /usr/include/sigc++-2.0/sigc++/signal.h:2895 #15 ff::fu::ga (this=this@entry=0x312879caf8, gb=...) at main.cpp:982 #16 0x0000003126707bc6 in ff::hk::je (this=0x312879cae0) at main.cpp:1290 #17 0x000003a1b613ce8a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4 #18 0x000003a1b6136f7c in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #19 0x000003a1b6c5ac1e in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #20 0x000003a1b6c643c7 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #21 0x000003a1b611811b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #22 0x000003a1b6162afa in QTimerInfoList::activateTimers() () from /usr/lib64/qt4/libQtCore.so.4 #23 0x000003a1b6163140 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #24 0x000003a1b6d4e638 in QEventDispatcherX11::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4 #25 0x000003a1b61162f2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #26 0x000003a1b611686c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #27 0x000003a1b611e809 in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4 #28 0x00000031266e996d in main (aik=1, Pcarg=0x3eea93b7dd8) at main.cpp:5689
