# gdb VirtualBox 
GNU gdb (GDB) 7.2-alt2.1 (ALT Linux)
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-alt-linux".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/VirtualBox...Reading symbols from /usr/lib/debug/usr/lib64/virtualbox/VirtualBox.debug...done.
done.
(gdb) run
Starting program: /usr/bin/VirtualBox 
[Thread debugging using libthread_db enabled]
[New Thread 0x7fb6df12d700 (LWP 22403)]
[New Thread 0x7fb6df0c7700 (LWP 22404)]
[Thread 0x7fb6df0c7700 (LWP 22404) exited]
[Thread 0x7fb6df12d700 (LWP 22403) exited]

Program received signal SIGSEGV, Segmentation fault.
0x00007fb6d98341ea in get_thread_data () at thread/qthread_unix.cpp:174
174         return currentThreadData;
(gdb) bt
#0  0x00007fb6d98341ea in get_thread_data () at thread/qthread_unix.cpp:174
#1  QThreadData::current () at thread/qthread_unix.cpp:200
#2  0x00007fb6d9831989 in QThread::currentThread () at thread/qthread.cpp:361
#3  0x00007fb6d991d877 in QCoreApplicationPrivate::QCoreApplicationPrivate (this=0x6440b0, 
    aargc=@0x7fffbaaae8fc, aargv=0x7fffbaaaed68, flags=<value optimized out>) at kernel/qcoreapplication.cpp:402
#4  0x00007fb6d8daa143 in QApplicationPrivate::QApplicationPrivate (this=0x6440b0, argc=<value optimized out>, 
    argv=<value optimized out>, type=QApplication::GuiClient, flags=<value optimized out>)
    at kernel/qapplication.cpp:175
#5  0x00007fb6d8db2e7b in QApplication::QApplication (this=0x7fffbaaae940, dpy=0x637f10, argc=@0x7fffbaaae8fc, 
    argv=0x7fffbaaaed68, visual=6565424, colormap=0, _internal=263940) at kernel/qapplication.cpp:948
#6  0x00007fb6db1cfc76 in TrustedMain (argc=1, argv=0x7fffbaaaed68)
    at /usr/src/debug/VirtualBox-4.1.6_OSE/src/VBox/Frontends/VirtualBox/src/main.cpp:372
#7  0x00007fb6de4a6c5d in __libc_start_main (main=0x4012f0 <main(int, char**, char**)>, argc=1, 
    ubp_av=0x7fffbaaaed68, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fffbaaaed58) at libc-start.c:226
#8  0x0000000000401229 in _start () at ../sysdeps/x86_64/elf/start.S:113
(gdb)