Just an update In same machine, I've installed: sudo apt-get install linux-headers-generic-lts-trusty linux-image-generic-lts-trusty
After that, I've rebooted with that kernel: 3.13.0-62-generic Once rebooted, VirtualBox works OK, and all VMs works as expected. If I reboot again with vivid kernel, VirtualBox stops working. So, seems like a problem with 3.19.0 kernel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1457776 Title: virtualbox-dkms 4.3.10-dfsg-1ubuntu5: virtualbox kernel module failed to build To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1457776/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs