Hi, I'm trying to enforce hard cpu limits with cgroups following these instructions: http://linux-vserver.org/util-vserver:Cgroups I've used a defailt debian testing kernel and have the following vserver specific configurations set: CONFIG_CFS_HARD_LIMITS=y # Linux VServer CONFIG_VSERVER_AUTO_LBACK=y # CONFIG_VSERVER_AUTO_SINGLE is not set CONFIG_VSERVER_COWBL=y # CONFIG_VSERVER_VTIME is not set # CONFIG_VSERVER_DEVICE is not set CONFIG_VSERVER_PROC_SECURE=y CONFIG_VSERVER_HARDCPU=y CONFIG_VSERVER_IDLETIME=y CONFIG_VSERVER_IDLELIMIT=y CONFIG_VSERVER_PRIVACY=y CONFIG_VSERVER_CONTEXTS=768 CONFIG_VSERVER_WARN=y # CONFIG_VSERVER_DEBUG is not set CONFIG_VSERVER=y CONFIG_VSERVER_SECURITY=y CONFIG_CGROUP_SCHED=y CONFIG_CGROUPS=y # CONFIG_CGROUP_DEBUG is not set # CONFIG_CGROUP_NS is not set CONFIG_CGROUP_FREEZER=y CONFIG_CGROUP_DEVICE=y CONFIG_CGROUP_CPUACCT=y CONFIG_NET_CLS_CGROUP=y Here my cgroup specific settings on vserver1: cpu.cfs_hard_limit 1 cpu.cfs_period_us 500000 cpu.cfs_runtime_us 250000 when first trying to start my vserver i get the following error: /usr/lib/util-vserver/vserver.functions: Zeile 1490: /dev/cgroup/vserver1/cpu.cfs_hard_limit: Keine Berechtigung Failed to start vserver 'vserver1' on the second try it just starts. But tests with md5sum /dev/urandom show that there is no cpu limiting in place. I'm using util-vserver version 0.30.216-pre2864-1 (deliverd with debian testing/squeeze). Hope you have an idea what is wrong with my setup. Regards Markus Petzsch