I''m using the cpufreq=dom0-kernel hypervisor kernel parameter to enable frequency scaling on the host machines for quite some time now. Since then I started to get the "Time went backwards" message on AMD machines (not on Intel machines). It''s not a big problem, so I only research it once in a while when I stumble upon it from yet another direction. There''s no really good explanation/solution to be found with googling. It seems there''s at least cpufreq=dom0-kernel and cpufreq=xen. It''s not clear in which versions these are/were available and if there are any more options available or one that would make this machine go away (but keep the frequency scaling). Can someone shed some light on this? I''m using CentOS 5.2 with Xen 3.2.0 and 3.2.1. Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users