.
Thread 2 (Thread 31281):
#0  0x00007f0fcaa6f3c2 in select () from /lib/libc.so.6
No symbol table info available.
#1  0x00007f0fcb7f0f31 in ?? () from /usr/lib/libQtCore.so.4
No symbol table info available.
#2  0x00007f0fcb72b445 in ?? () from /usr/lib/libQtCore.so.4
No symbol table info available.
#3  0x00007f0fcb4b7a04 in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#4  0x00007f0fcaa767bd in clone () from /lib/libc.so.6
No symbol table info available.
#5  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 31251):
#0  0x00007f0fcb76e5f8 in QString::fromLocal8Bit(char const*, int) ()
   from /usr/lib/libQtCore.so.4
No symbol table info available.
#1  0x00007f0fcb812cbc in QCoreApplication::arguments() ()
   from /usr/lib/libQtCore.so.4
No symbol table info available.
#2  0x00007f0fcbd15b91 in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#3  0x00007f0fcbd16929 in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#4  0x00007f0fc9b524ef in _SmcProcessMessage () from /usr/lib/libSM.so.6
No symbol table info available.
#5  0x00007f0fc994300c in IceProcessMessages () from /usr/lib/libICE.so.6
No symbol table info available.
#6  0x00007f0fcbcff10f in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#7  0x00007f0fcb826ddc in QMetaObject::activate(QObject*, int, int, void**) ()
   from /usr/lib/libQtCore.so.4
No symbol table info available.
#8  0x00007f0fcb85ce9e in QSocketNotifier::activated(int) ()
   from /usr/lib/libQtCore.so.4
No symbol table info available.
#9  0x00007f0fcb82b773 in QSocketNotifier::event(QEvent*) ()
   from /usr/lib/libQtCore.so.4
No symbol table info available.
#10 0x00007f0fcbca4efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#11 0x00007f0fcbcac1ce in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/libQtGui.so.4
No symbol table info available.
#12 0x00007f0fcb811c2c in QCoreApplication::notifyInternal(QObject*, QEvent*)
    () from /usr/lib/libQtCore.so.4
No symbol table info available.
#13 0x00007f0fcb83a42a in ?? () from /usr/lib/libQtCore.so.4
No symbol table info available.
#14 0x00007f0fc948ebbe in g_main_context_dispatch ()
   from /lib/libglib-2.0.so.0
No symbol table info available.
#15 0x00007f0fc9492588 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#16 0x00007f0fc94926b0 in g_main_context_iteration ()
   from /lib/libglib-2.0.so.0
No symbol table info available.
#17 0x00007f0fcb83a1a6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#18 0x00007f0fcbd394be in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#19 0x00007f0fcb810532 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#20 0x00007f0fcb810904 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#21 0x00007f0fcb812ab9 in QCoreApplication::exec() ()
   from /usr/lib/libQtCore.so.4
No symbol table info available.
#22 0x0000000000406250 in ?? ()
No symbol table info available.
#23 0x00007f0fca9b5abd in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#24 0x0000000000406169 in ?? ()
No symbol table info available.
#25 0x00007fffe17e7858 in ?? ()
No symbol table info available.
#26 0x000000000000001c in ?? ()
No symbol table info available.
#27 0x0000000000000001 in ?? ()
No symbol table info available.
#28 0x00007fffe17e8be9 in ?? ()
No symbol table info available.
#29 0x0000000000000000 in ?? ()
No symbol table info available.