(gdb) bt
#0  0xb61848e4 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6
#1  0xb61fba38 in pselect () from /lib/arm-linux-gnueabihf/libc.so.6
#2  0xb653df5e in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#3  0xb653dfea in ?? () from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#4  0xb64c6854 in ?? () from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#5  0xb6485e06 in QProcess::waitForFinished(int) () from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#6  0xaa4ee800 in ?? () from /usr/lib/arm-linux-gnueabihf/libusermetricsoutput.so.1
#7  0xaa4e3262 in ?? () from /usr/lib/arm-linux-gnueabihf/libusermetricsoutput.so.1
#8  0xaa4e33a8 in ?? () from /usr/lib/arm-linux-gnueabihf/libusermetricsoutput.so.1
#9  0xaa4e475c in ?? () from /usr/lib/arm-linux-gnueabihf/libusermetricsoutput.so.1
#10 0xaa4e5d06 in ?? () from /usr/lib/arm-linux-gnueabihf/libusermetricsoutput.so.1
#11 0xb6526544 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#12 0xaa4eee10 in ?? () from /usr/lib/arm-linux-gnueabihf/libusermetricsoutput.so.1
#13 0xaa4ef97c in ?? () from /usr/lib/arm-linux-gnueabihf/libusermetricsoutput.so.1
#14 0xb27f734e in ?? () from /usr/lib/arm-linux-gnueabihf/libQt5DBus.so.5
Backtrace stopped: previous frame identical to this frame (corrupt stack?)