Marking this as Invalid, as you are using an unofficial Linux kernel that is not from the official repository. I am, however, able to reproduce this with linux 3.11.0-1-generic in Saucy, so please see Bug 1211596 for further information.
** Changed in: virtualbox (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1201516 Title: virtualbox-guest-dkms 4.2.10-dfsg-1ubuntu2: virtualbox-guest kernel module failed to build [error: unknown field ‘readdir’ specified in initializer] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1201516/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs