. Thread 3 (Thread 0x7f9a57662700 (LWP 3909)): #0 0x00007f9a6702cdc3 in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f9a65366136 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f9a6536659a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f9a5e312446 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #4 0x00007f9a653877d5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f9a68222e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f9a6703877d in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #7 0x0000000000000000 in ?? () No symbol table info available. . Thread 2 (Thread 0x7f9a479d2700 (LWP 3920)): #0 0x00007f9a682270fe in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00007f9a653a1785 in g_cond_wait_until () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f9a6533c271 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f9a6538805a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #4 0x00007f9a653877d5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f9a68222e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f9a6703877d in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #7 0x0000000000000000 in ?? () No symbol table info available. . Thread 1 (Thread 0x7f9a68641700 (LWP 3906)): #0 0x00007f9a66f7e475 in raise () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f9a66f81bdb in abort () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #2 0x00007f9a66f7710e in ?? () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #3 0x00007f9a66f771b2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #4 0x00007f9a6664d8b9 in ?? () from /usr/lib/python2.7/dist-packages/sip.so No symbol table info available. #5 0x00007f9a54af1b82 in ?? () from /usr/lib/python2.7/dist-packages/popplerqt4.so No symbol table info available. #6 0x00000000004b65c1 in PyEval_EvalFrameEx () No symbol table info available. #7 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #8 0x000000000044931f in ?? () No symbol table info available. #9 0x000000000041aefa in PyObject_Call () No symbol table info available. #10 0x0000000000430aae in ?? () No symbol table info available. #11 0x000000000041aefa in PyObject_Call () No symbol table info available. #12 0x0000000000480cd3 in ?? () No symbol table info available. #13 0x000000000047c271 in ?? () No symbol table info available. #14 0x000000000041aefa in PyObject_Call () No symbol table info available. #15 0x00000000004b70ae in PyEval_EvalFrameEx () No symbol table info available. #16 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #17 0x00000000004b6c5e in PyEval_EvalFrameEx () No symbol table info available. #18 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #19 0x00000000004b6c5e in PyEval_EvalFrameEx () No symbol table info available. #20 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #21 0x000000000044931f in ?? () No symbol table info available. #22 0x000000000041aefa in PyObject_Call () No symbol table info available. #23 0x0000000000430aae in ?? () No symbol table info available. #24 0x000000000041aefa in PyObject_Call () No symbol table info available. #25 0x00000000004b5d96 in PyEval_CallObjectWithKeywords () No symbol table info available. #26 0x00007f9a66659f80 in sip_api_invoke_slot () from /usr/lib/python2.7/dist-packages/sip.so No symbol table info available. #27 0x00007f9a6637f396 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so No symbol table info available. #28 0x00007f9a6637f690 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so No symbol table info available. #29 0x00007f9a6637f772 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so No symbol table info available. #30 0x00007f9a65ebead9 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #31 0x00007f9a66384e0b in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so No symbol table info available. #32 0x00007f9a6637c80a in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so No symbol table info available. #33 0x00000000004b65c1 in PyEval_EvalFrameEx () No symbol table info available. #34 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #35 0x00000000004b6c5e in PyEval_EvalFrameEx () No symbol table info available. #36 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #37 0x00000000004494d8 in ?? () No symbol table info available. #38 0x000000000041aefa in PyObject_Call () No symbol table info available. #39 0x00000000004b846e in PyEval_EvalFrameEx () No symbol table info available. #40 0x00000000004b6b97 in PyEval_EvalFrameEx () No symbol table info available. #41 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #42 0x000000000044931f in ?? () No symbol table info available. #43 0x000000000041aefa in PyObject_Call () No symbol table info available. #44 0x0000000000430aae in ?? () No symbol table info available. #45 0x000000000041aefa in PyObject_Call () No symbol table info available. #46 0x00000000004806d6 in ?? () No symbol table info available. #47 0x000000000041aefa in PyObject_Call () No symbol table info available. #48 0x00000000004b70ae in PyEval_EvalFrameEx () No symbol table info available. #49 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #50 0x00000000004b6c5e in PyEval_EvalFrameEx () No symbol table info available. #51 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #52 0x00000000004b6c5e in PyEval_EvalFrameEx () No symbol table info available. #53 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #54 0x00000000004b6c5e in PyEval_EvalFrameEx () No symbol table info available. #55 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #56 0x000000000044931f in ?? () No symbol table info available. #57 0x000000000041aefa in PyObject_Call () No symbol table info available. #58 0x0000000000430aae in ?? () No symbol table info available. #59 0x000000000041aefa in PyObject_Call () No symbol table info available. #60 0x00000000004b5d96 in PyEval_CallObjectWithKeywords () No symbol table info available. #61 0x00007f9a66659f80 in sip_api_invoke_slot () from /usr/lib/python2.7/dist-packages/sip.so No symbol table info available. #62 0x00007f9a6637f396 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so No symbol table info available. #63 0x00007f9a6637f690 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so No symbol table info available. #64 0x00007f9a6637f772 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so No symbol table info available. #65 0x00007f9a65ebead9 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #66 0x00007f9a63cecf52 in QAction::triggered(bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 No symbol table info available. #67 0x00007f9a63ced13f in QAction::activate(QAction::ActionEvent) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 No symbol table info available. #68 0x00007f9a65ec3a96 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #69 0x00007f9a63ced210 in QAction::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 No symbol table info available. #70 0x00007f9a64ca9a23 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so No symbol table info available. #71 0x00007f9a63cf36b4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 No symbol table info available. #72 0x00007f9a63cf8533 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 No symbol table info available. #73 0x00007f9a64ca9a99 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so No symbol table info available. #74 0x00007f9a65eaa4ec in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #75 0x00007f9a65eae2ba in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #76 0x00007f9a65ed95e3 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #77 0x00007f9a65365dda in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #78 0x00007f9a653661a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #79 0x00007f9a65366264 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #80 0x00007f9a65ed9a0f in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #81 0x00007f9a63d9b42e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 No symbol table info available. #82 0x00007f9a65ea92d2 in QEventLoop::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #83 0x00007f9a65ea9527 in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #84 0x00007f9a65eae5b7 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #85 0x00007f9a64c75c5e in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so No symbol table info available. #86 0x00000000004b65c1 in PyEval_EvalFrameEx () No symbol table info available. #87 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #88 0x00000000004b6c5e in PyEval_EvalFrameEx () No symbol table info available. #89 0x00000000004bcd0d in PyEval_EvalCodeEx () No symbol table info available. #90 0x00000000004bd7e2 in PyEval_EvalCode () No symbol table info available. #91 0x00000000004dcc52 in ?? () No symbol table info available. #92 0x00000000004dd814 in PyRun_FileExFlags () No symbol table info available. #93 0x00000000004de28e in PyRun_SimpleFileExFlags () No symbol table info available. #94 0x00000000004ee6dd in Py_Main () No symbol table info available. #95 0x00007f9a66f6976d in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #96 0x000000000041ce39 in _start () No symbol table info available.