GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1 Copyright (C) 2014 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". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/lib/virtualbox/VBoxSVC...Reading symbols from /usr/lib/debug//usr/lib/virtualbox/VBoxSVC...done. done. (gdb) break HostPowerServiceLinux::~HostPowerServiceLinux() Breakpoint 1 at 0x5e50f0: HostPowerServiceLinux::~HostPowerServiceLinux(). (2 locations) (gdb) (gdb) run Starting program: /usr/lib/virtualbox/VBoxSVC [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7ffff1b9e700 (LWP 25261)] [New Thread 0x7ffff139d700 (LWP 25262)] [Thread 0x7ffff139d700 (LWP 25262) exited] [Thread 0x7ffff1b9e700 (LWP 25261) exited] [New Thread 0x7ffff7e4a700 (LWP 25267)] [New Thread 0x7ffff7e29700 (LWP 25268)] [New Thread 0x7ffff0145700 (LWP 25269)] *********************************************** Oracle VM VirtualBox XPCOM Server Version 5.0.8 (C) 2004-2015 Oracle Corporation All rights reserved. Starting event loop.... [press Ctrl-C to quit] [New Thread 0x7ffff00c4700 (LWP 25298)] [New Thread 0x7fffeb80c700 (LWP 25299)] [New Thread 0x7fffeb78b700 (LWP 25300)] [New Thread 0x7ffff0043700 (LWP 25303)] [New Thread 0x7fffeb4c2700 (LWP 25304)] [New Thread 0x7fffeb338700 (LWP 25305)] [New Thread 0x7fffeb2b7700 (LWP 25306)] Informational: VirtualBox object created (rc=NS_OK). [New Thread 0x7ffff0022700 (LWP 25308)] [New Thread 0x7fffeb024700 (LWP 25721)] [New Thread 0x7fffeb003700 (LWP 25827)] [Thread 0x7fffeb338700 (LWP 25305) exited] Breakpoint 1, HostPowerServiceLinux::~HostPowerServiceLinux (this=0x7fffe4010e00, __in_chrg=) at /home/vbox/vbox-5.0.8/src/VBox/Main/src-server/linux/HostPowerLinux.cpp:85 85 /home/vbox/vbox-5.0.8/src/VBox/Main/src-server/linux/HostPowerLinux.cpp: No such file or directory. (gdb) backtrace #0 HostPowerServiceLinux::~HostPowerServiceLinux (this=0x7fffe4010e00, __in_chrg=) at /home/vbox/vbox-5.0.8/src/VBox/Main/src-server/linux/HostPowerLinux.cpp:85 #1 0x000000000049a2fd in Host::uninit (this=0x7fffe400e330) at /home/vbox/vbox-5.0.8/src/VBox/Main/src-server/HostImpl.cpp:504 #2 0x00000000005737e0 in VirtualBox::uninit (this=0x7fffe4000cd0) at /home/vbox/vbox-5.0.8/src/VBox/Main/src-server/VirtualBoxImpl.cpp:781 #3 0x00000000005c7750 in ~VirtualBoxClassFactory (this=0x7fffe4000cd0, __in_chrg=) at /home/vbox/vbox-5.0.8/src/VBox/Main/src-server/xpcom/server.cpp:189 #4 VirtualBoxClassFactory::~VirtualBoxClassFactory (this=0x7fffe4000cd0, __in_chrg=) at /home/vbox/vbox-5.0.8/src/VBox/Main/src-server/xpcom/server.cpp:194 #5 0x00000000006cbf5c in VirtualBoxWrap::Release (this=0x7fffe4000cd0) at /home/vbox/vbox-5.0.8/out/debian/builddir/obj/VBoxAPIWrap/VirtualBoxWrap.cpp:2482 #6 0x00000000005c7b2d in Release (this=) at /home/vbox/vbox-5.0.8/src/VBox/Main/src-server/xpcom/server.cpp:201 #7 VirtualBoxClassFactory::MaybeQuitEvent::handler (this=) at /home/vbox/vbox-5.0.8/src/VBox/Main/src-server/xpcom/server.cpp:298 #8 0x00007ffff709c2e6 in VBoxNsplPL_HandleEvent (self=0x7fffe4010e00) at /home/vbox/vbox-5.0.8/src/libs/xpcom18a4/xpcom/threads/plevent.c:686 #9 0x00007ffff709a860 in nsEventQueueImpl::HandleEvent (this=, aEvent=0x7fffc00008c8) at /home/vbox/vbox-5.0.8/src/libs/xpcom18a4/xpcom/threads/nsEventQueue.cpp:454 #10 0x00000000004104be in main (argc=, argv=0xa804c0) at /home/vbox/vbox-5.0.8/src/VBox/Main/src-server/xpcom/server.cpp:954 (gdb) quit A debugging session is active. Inferior 1 [process 25257] will be killed. Quit anyway? (y or n) y