Comment 9 for bug 1026730

Repeating test show that issues seem to be related with the version of Xen running on the EC2 host and not with the guest kernel. 3.0.3 shows a #GP on writing cr4 while 3.4.3 was working ok. And more this failed with older (as old as initial release) kernels as well as it did on the new one (we probably don't know which Xen version this was happening on. So I would say this should not delay the release of this update.