On Sun, Oct 08, 2017 at 11:59:52PM +0200, Oliver Marugg wrote: > On 7 Oct 2017, at 22:01, Mike Larkin wrote: > > > On Sat, Oct 07, 2017 at 02:19:58PM +0200, Oliver Marugg wrote: > > > Just to add a 4th situation of hangs: Login via proxmox (pve)/kvm > > > serial > > > console (via noVNC), login successful: Vm guest in pve hangs, cpu > > > usage at > > > above 102%. Only way is to hard stop the Vm guest. -oliver > > > > > > > sounds like a kvm bug. Ask your provider to investigate the host side > > when this > > happens. > > Thanks Mike, will do so. The proxmox guys have also the idea that it could > be a bug in kvm hypervisor (which is the hypervisor part for proxmox) and > will affect OpenBSD since 4.9, they wrote me in their public forum. As far > as I understood they do not know what OpenBSD needs in kvm or what/where > should be fixed in kvm run OpenBSD without that freezes. > > -oliver
>From what I read, the cpu spins to 100%, which means somewhere on the host it's likely spinning also. Start with systrace/ptrace/ktrace/whatever on the host qemu-kvm and go from there... -ml
