Hi, On Tue, 2006-04-11 at 16:05 +0200, Matthias Bayer wrote: > i have serveral DomU's running under Xen xen-3.0.1-4 kernel-xen0-2.6.16-1.2080_FC5. > i have paravirtualized and fully virtualized systems (windows and linux). > now the problem is whenever i start 2 fully virtualized systems in parallel (first start one then if this runs try to start the other one) the computer completely crashes and reboots, no more log entries... nothing. > > does anybody now how to debug such a problem ? With serial console, usually. There are also a number of upstream Xen updates for VMX, and we're putting together an update which may help there. Cheers, Stephen