#0  0x40f6e4bc in poll () from /lib/libc.so.6
#1  0x40251024 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x4025116c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x40bdd2a0 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x40b905e0 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x40b90a10 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x40b97414 in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#7  0x000141ac in ?? ()
#8  0x40ebcef4 in __libc_start_main () from /lib/libc.so.6
#9  0x0001451c in ?? ()
Cannot access memory at address 0x0
#10 0x0001451c in ?? ()
Cannot access memory at address 0x0
Backtrace stopped: previous frame identical to this frame (corrupt stack?)