Hi all, I get a similar bug when I enable KSM:
http://bugzilla.openvz.org/show_bug.cgi?id=1501 when I disable KSM everything work without problems. (beside the slow fsync rate when using CFQ) I guess we should diable KSM for the OpenVZ kernel, because this is not even expected to work http://bugzilla.openvz.org/show_bug.cgi?id=1623 - Dietmar