Debug Core Dump Doesn't Work

I use core dump files to debug my system, but in this version of Qt I am not able to use it. When I try to initialize the debug, the process does not start and the messages below are displayed on the terminal. The Debug tab is accessed, but the only messages displayed in Qt Creator are: 08:59:38: Debugging starts and 08:59:39: Debugging has finished.

Due to legacy system, I work with Qt 4.8.5. GCC 5.3.1 20160406 (Red Hat 5.3.1-6) 64 bits.

QProcess: Destroyed while process ("/opt/poky/1.6.1/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb") is still running.
SOFT ASSERT: "d->m_logWindow" in file /home/qt/work/build/qt-creator/src/plugins/debugger/debuggerengine.cpp, line 1737
MSG: "HANDLE GDB ERROR: The process was ended forcefully.\nProcess crashed"
SOFT ASSERT: "d->m_logWindow" in file /home/qt/work/build/qt-creator/src/plugins/debugger/debuggerengine.cpp, line 1737
MSG: "GDB PROCESS FINISHED, status 1, exit code 9"
Invalid run control state transition from "RunControlState::Starting" to "RunControlState::Stopped"
SOFT ASSERT: "d->m_logWindow" in file /home/qt/work/build/qt-creator/src/plugins/debugger/debuggerengine.cpp, line 1737
MSG: "(gdb) "
SOFT ASSERT: "d->m_logWindow" in file /home/qt/work/build/qt-creator/src/plugins/debugger/debuggerengine.cpp, line 1737
MSG: "QUIT DEBUGGER REQUESTED IN STATE 17"
SOFT ASSERT: "d->m_logWindow" in file /home/qt/work/build/qt-creator/src/plugins/debugger/debuggerengine.cpp, line 1737
MSG: "45^done"
SOFT ASSERT: "d->m_logWindow" in file /home/qt/work/build/qt-creator/src/plugins/debugger/debuggerengine.cpp, line 1737
MSG: "COOKIE FOR TOKEN 45 ALREADY EATEN (DebuggerFinished). TWO RESPONSES FOR ONE COMMAND?"
SOFT ASSERT: "d->m_logWindow" in file /home/qt/work/build/qt-creator/src/plugins/debugger/debuggerengine.cpp, line 1737
MSG: "(gdb) "