Comment 3 for bug 1208455

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James Hunt (jamesodhunt) wrote : Re: general protection fault running apt-get inside nested kvm VM on OpenStack

I'm suspecting an issue with nested=1... the nested VM does eventually boot but it takes many minutes to do so. At this point, the cpu usage of qemu-kvm drops to reasonable values. But if you ssh into the vm, the usage jumps up to ~200% again.

To recreate:

$ sudo apt-get install -y genisoimage linux-image-extra-virtual bzr qemu-kvm qemu-utils
$ sudo usermod -G kvm -a ubuntu

<logout+back in>

$ sudo modprobe kvm_intel nested=1
$ bzr branch lp:auto-package-testing
$ cd auto-package-testing
$ bin/prepare-testbed -r saucy -d i386

... and observe ps output.