Well I did hit continue and gdb give me this:

Failed to read a valid object file image from memory.

(gdb) backtrace
Stopped due to shared library event
#0 0xb7f0ec70 in _dl_debug_state () from /lib/ld-linux.so.2
#1 0xb7f036f6 in dl_main () from /lib/ld-linux.so.2
#2 0xb7f13e6b in _dl_sysdep_start () from /lib/ld-linux.so.2
#3 0xb7f012c4 in _dl_start () from /lib/ld-linux.so.2
#4 0xb7f008d7 in _start () from /lib/ld-linux.so.2
(gdb) info args
No symbol table info available.
(gdb) info local
No symbol table info available.
(gdb) frame 0
#0 0xb7f0ec70 in _dl_debug_state () from /lib/ld-linux.so.2
(gdb) info args
No symbol table info available.
(gdb) info local
No symbol table info available.
(gdb) continue
[Thread debugging using libthread_db enabled]
[New Thread -1221592864 (LWP 6190)]
Stopped due to shared library event
(gdb) continue
[Switching to Thread -1221592864 (LWP 6190)]
Stopped due to shared library event
(gdb) continue
Stopped due to shared library event
(gdb) continue
Stopped due to shared library event
(gdb) continue
Stopped due to shared library event
(gdb) continue
Stopped due to shared library event
(gdb) continue
Stopped due to shared library event
(gdb) continue
Stopped due to shared library event
(gdb) continue

Breakpoint 1, MainWindow::createConnection (this=0x80d9990) at mainwindow.ui.h:354
/home/ken/NetLogger/mainwindow.ui.h:354:12111:beg:0x806100c
(gdb) info thread
* 1 Thread -1221592864 (LWP 6190) MainWindow::createConnection (this=0x80d9990) at mainwindow.ui.h:354
(gdb) backtrace
#0 MainWindow::createConnection (this=0x80d9990) at mainwindow.ui.h:354
#1 0x08054c10 in MainWindow::init (this=0x80d9990) at mainwindow.ui.h:53
#2 0x0805a7e0 in MainWindow (this=0x80d9990, parent=0x0, name=0x0, fl=1) at mainwindow.cpp:740
#3 0x0804f660 in main (argc=
Cannot access memory at address 0x0

) at main.cpp:21
(gdb) info breakpoints
Num Type Disp Enb Address What
1 breakpoint keep y 0x0806100c in MainWindow::createConnection() at mainwindow.ui.h:354
breakpoint already hit 1 time
(gdb) info args
this = (class MainWindow * const) 0x80d9990
(gdb) info local
No locals.
(gdb) whatis this
type = class MainWindow * const
(gdb) continue
Stopped due to shared library event
(gdb) continue
Stopped due to shared library event
(gdb) continue

Program received signal SIGSEGV, Segmentation fault.
0x0806108a in MainWindow::createConnection (this=0x80d9990) at mainwindow.ui.h:355
/home/ken/NetLogger/mainwindow.ui.h:355:12154:beg:0x806108a
(gdb) info thread
* 1 Thread -1221592864 (LWP 6190) 0x0806108a in MainWindow::createConnection (this=0x80d9990) at mainwindow.ui.h:355
(gdb) backtrace
#0 0x0806108a in MainWindow::createConnection (this=0x80d9990) at mainwindow.ui.h:355
#1 0x08054c10 in MainWindow::init (this=0x80d9990) at mainwindow.ui.h:53
#2 0x0805a7e0 in MainWindow (this=0x80d9990, parent=0x0, name=0x0, fl=1) at mainwindow.cpp:740
#3 0x0804f660 in main (argc=
Cannot access memory at address 0x0

) at main.cpp:21
(gdb) info args
this = (class MainWindow * const) 0x80d9990
(gdb) info local
No locals.
(gdb) step
Couldn't get registers: No such process.
(gdb) info thread
Couldn't get registers: No such process.
(gdb) backtrace
(gdb) Process exited