$ gdb ~/workspace/VBoxSVC GNU gdb (GDB) 7.4.1-debian Copyright (C) 2012 Free Softwa$ gdb ~/workspace/VBoxSVC GNU gdb (GDB) 7.4.1-debian Copyright (C) 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. 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-linux-gnu". For bug reporting instructions, please see: ... Reading symbols from /home/user/workspace/VBoxSVC...(no debugging symbols found)...done. (gdb) r Starting program: /home/user/workspace/VBoxSVC [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7ffff7e69700 (LWP 13199)] [Thread 0x7ffff7e69700 (LWP 13199) exited] [New Thread 0x7ffff7e69700 (LWP 13200)] [New Thread 0x7ffff7e48700 (LWP 13201)] [New Thread 0x7ffff1f00700 (LWP 13202)] ************************************************ Oracle VM VirtualBox XPCOM Server Version 4.2.12 (C) 2004-2013 Oracle Corporation All rights reserved. Starting event loop.... [press Ctrl-C to quit] [New Thread 0x7ffff1e7f700 (LWP 13219)] [New Thread 0x7ffff1dfe700 (LWP 13220)] [New Thread 0x7fffedec6700 (LWP 13225)] [New Thread 0x7fffe5e45700 (LWP 13226)] Informational: VirtualBox object created (rc=NS_OK). [New Thread 0x7ffff7e27700 (LWP 13231)] [New Thread 0x7fffede45700 (LWP 13245)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffede45700 (LWP 13245)] 0x000000000050de25 in ?? () (gdb) bt #0 0x000000000050de25 in ?? () #1 0x00000000004b8dd7 in ?? () #2 0x000000000051df75 in ?? () #3 0x000000000051bf09 in ?? () #4 0x00007ffff769175c in ?? () from /usr/lib/virtualbox/VBoxRT.so #5 0x00007ffff76e324f in ?? () from /usr/lib/virtualbox/VBoxRT.so #6 0x00007ffff796eb50 in start_thread (arg=) at pthread_create.c:304 #7 0x00007ffff6704a7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #8 0x0000000000000000 in ?? () (gdb) c Continuing. [Thread 0x7ffff1dfe700 (LWP 13220) exited] [Thread 0x7ffff1f00700 (LWP 13202) exited] [Thread 0x7fffedec6700 (LWP 13225) exited] [Thread 0x7fffede45700 (LWP 13245) exited] [Thread 0x7ffff7e27700 (LWP 13231) exited] [Thread 0x7ffff1e7f700 (LWP 13219) exited] [Thread 0x7ffff7e48700 (LWP 13201) exited] [Thread 0x7ffff7e69700 (LWP 13200) exited] [Thread 0x7ffff7e6b740 (LWP 13196) exited] Program terminated with signal SIGSEGV, Segmentation fault. The program no longer exists. (gdb) qre Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. 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-linux-gnu". For bug reporting instructions, please see: ... Reading symbols from /home/user/workspace/VBoxSVC...(no debugging symbols found)...done. (gdb) r Starting program: /home/user/workspace/VBoxSVC [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7ffff7e69700 (LWP 13199)] [Thread 0x7ffff7e69700 (LWP 13199) exited] [New Thread 0x7ffff7e69700 (LWP 13200)] [New Thread 0x7ffff7e48700 (LWP 13201)] [New Thread 0x7ffff1f00700 (LWP 13202)] ************************************************ Oracle VM VirtualBox XPCOM Server Version 4.2.12 (C) 2004-2013 Oracle Corporation All rights reserved. Starting event loop.... [press Ctrl-C to quit] [New Thread 0x7ffff1e7f700 (LWP 13219)] [New Thread 0x7ffff1dfe700 (LWP 13220)] [New Thread 0x7fffedec6700 (LWP 13225)] [New Thread 0x7fffe5e45700 (LWP 13226)] Informational: VirtualBox object created (rc=NS_OK). [New Thread 0x7ffff7e27700 (LWP 13231)] [New Thread 0x7fffede45700 (LWP 13245)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffede45700 (LWP 13245)] 0x000000000050de25 in ?? () (gdb) bt #0 0x000000000050de25 in ?? () #1 0x00000000004b8dd7 in ?? () #2 0x000000000051df75 in ?? () #3 0x000000000051bf09 in ?? () #4 0x00007ffff769175c in ?? () from /usr/lib/virtualbox/VBoxRT.so #5 0x00007ffff76e324f in ?? () from /usr/lib/virtualbox/VBoxRT.so #6 0x00007ffff796eb50 in start_thread (arg=) at pthread_create.c:304 #7 0x00007ffff6704a7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #8 0x0000000000000000 in ?? () (gdb) c Continuing. [Thread 0x7ffff1dfe700 (LWP 13220) exited] [Thread 0x7ffff1f00700 (LWP 13202) exited] [Thread 0x7fffedec6700 (LWP 13225) exited] [Thread 0x7fffede45700 (LWP 13245) exited] [Thread 0x7ffff7e27700 (LWP 13231) exited] [Thread 0x7ffff1e7f700 (LWP 13219) exited] [Thread 0x7ffff7e48700 (LWP 13201) exited] [Thread 0x7ffff7e69700 (LWP 13200) exited] [Thread 0x7ffff7e6b740 (LWP 13196) exited] Program terminated with signal SIGSEGV, Segmentation fault. The program no longer exists. (gdb) q