Andrew Cooper

> The original fix says that there are rare cases that it still does not work; however does that case match the problem I am facing? I meant rare at...

First, you probably want a version of Xen with the S3/timer issue fixed. @marmarek Do you have a build to hand? I'm not sure that will make a difference in...

> Are super pages only allowed to be used by dom0? PV guests cannot use superpages at all. dom0 doesn't get them either. > Do you what could cause such...

Hmm - sadly nothing helpful there. Not terribly surprising as it's a release hypervisor, but that's no guarantee that a debug Xen would be any more helpful. As an unrelated...

Ah. clocksources. An unmitigated set of disasters on native as well as under virt. For Qubes, you're not migrating VMs, so it's safe to expose the Invariant TSC CPU feature...

Urgh. I've been trying to kill `nomigrate` and it has a habit of segfaulting libvirt for reasons we never got to the bottom of. It might be easier to pass...

@m-v-b Very interesting backtrace. (I'll see about organising that patch to go upstream into Xen. It's clearly the right thing to do) The thing Xen was complaining about specifically was...

@m-v-b So this is why I suggested making a simplified test case - it's now clearly a bug in the Linux gntdev driver. Can you provide your doublemap code and...

My divination skills are not up to the task. Focus on one bug at a time.

@DemiMarie Isn't ^ the thing you fixed with the invalid grant ref WARN() change?