On 01.10.14 at 09:27, <groen692@grosc.com> wrote: Recently I updated my openSuse box from 12.3 to 13.1. On this box I run xen with several guests. One of these guests is an appliance that has 4 kvm guests running. When I start this appliance with the nested vmx feature the appliance crashes either immediately or after a few minutes.
This same guest was running without a problem on opensuse releases 11.4 until 12.3
That's somewhat suspicious: Are you saying that even back then you already relied on nested virtualization (in order for KVM to work in a guest)?
( remark that about 3 year ago some patches were written by tim degan to make this appliance work ), I am not 100% sure what the right list to post this is soI also posted this problem on the xen-devel list.
Please be less vague for us to understand why you refer to. In particular we'd need to know whether you carried any patches in a private build of yours, which of course we can't really offer any help with. Whether the issue belongs here or on xen-devel (or xen-users) depends on what you expect, and by how much you're willing to help narrowing this down: From upstream's perspective, openSUSE and the Xen version it uses are of course only of secondary interest. It would be most interesting to know whether the -unstable tree (soon to become 4.5-rc) also exhibits the problem. The next best thing to try would be plain upstream 4.3.3 (or 4.4.1). Considering that you only recently switched, I suppose you don't really know whether this is a regression that got introduced during the lifetime of 13.1 (i.e. by one of the updates)?
==== outup xl demsg
I'll have to go through the dumped state in detail to see whether I can spot what caused the VM entry failure. That'll take some more time. Jan -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-virtual+owner@opensuse.org