The patch for kernel 3.11 is incomplete. The host module will build but won't work: https://www.virtualbox.org/ticket/12001
This is the 3.11 patch I've added to the latest virtualbox package: http://anonscm.debian.org/gitweb/?p=pkg-virtualbox/virtualbox.git;a=blob;f=debian/patches/37-linux-3.11.patch;h=19a577f4742e806312de56c66b2456e6ecc904b0;hb=b1f8c19f291b2067c6a1f916bebfdc8c81493e59 ** Bug watch added: Virtualbox Trac #12001 http://www.virtualbox.org/ticket/12001 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1076603 Title: virtualbox-guest kernel module fails to build on 3.7.0 kernel [error: 'VM_RESERVED' undeclared (first use in this function)] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1076603/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs