Hi, I just upgrade the kernel on my gentoo to 2.6.29-xen-r4. it''s installed in a machine with two xeon quad core. When I use more than 6 cores the max cpu usage go down for all cores around 40% If I reboot the same machine with old kernel 2.6.21 there isn''t this problem. Screenshot running 6 "cat /dev/urandom > /dev/null": http://img190.imageshack.us/img190/9038/htop2629b.png If I kill one cat and remain only 5 running "cat /dev/urandom > /dev/null" this is the result: http://img190.imageshack.us/img190/534/htop2629a.png With 8 cat: http://img4.imageshack.us/img4/4244/htop2629c.png It''s a strange thing because with kernel 2.6.21 there isn''t any problem: htop show me all 8 cores at 100% when I run 8 cat... Howto fix the problem in xensource-2.6.29-r4? Best regards, Riccardo _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users