I tried reproducing this while using trusty on the host and was unable to do so. I also could not reproduce with the trusty kernel (currently 3.12) running with saucy userspace on the host. So as far as I can tell the issue is fixed in 3.12.
I took a stab at trying to bisect, but something between 3.11 and 3.12-rc1 is causing the machine to not boot. With 3.12-rc1 my VMs failed to boot, and with 3.12-rc2 I couldn't reproduce the issue at all. So it looks like bisecting to find the fix will be nearly impossible. Going through the kvm commits in 3.12 revealed a lot of changes related to running nested VMs but nothing that stood out from the pack. So if anyone _really_ needs this fixed in saucy, let me know, otherwise I'm going to assume that having it fixed in trusty is good enough. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1208455 Title: general protection fault running apt-get inside double nested kvm VM Status in “linux” package in Ubuntu: In Progress Status in “qemu-kvm” package in Ubuntu: Confirmed Status in “linux” source package in Saucy: In Progress Status in “qemu-kvm” source package in Saucy: Confirmed Bug description: Attempting to run apt-get in a nested vm hosted in OpenStack results in a general protection fault in the kernel in the nested VM. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1208455/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
