Re: VMs freezing when host is running 4.14

From: Radim KrÄmÃÅ
Date: Wed Nov 22 2017 - 11:43:21 EST

2017-11-22 16:52+0100, Marc Haber:
> On Wed, Nov 22, 2017 at 04:04:42PM +0100, çéæ wrote:
> > So all guest kernels are 4.14, or also other older kernel?
> Guest kernels are also 4.14, but the issue disappears when the host is
> downgraded to an older kernel. I therefore reckoned that the guest
> kernel doesn't matter, but that was before I saw the trace in the log.

The two most suspicious patches since 4.13 (which I assume works) are

664f8e26b00c ("KVM: X86: Fix loss of exception which has not yet been


9a6e7c39810e ("KVM: async_pf: Fix #DF due to inject "Page not Present"
and "Page Ready" exceptions simultaneously")

please try reverting them to see if it helps,