Version: 0.37.1-1 I can confirm this bug.
cgconfig.conf: mount { cpu = /sys/fs/cgroup; cpuacct = /sys/fs/cgroup/cpuacct; devices = /sys/fs/cgroup/devices; memory = /sys/fs/cgroup/memory; } group firefox { perm { task { uid = root; gid = users; } admin { uid = root; gid = root; } } memory { memory.limit_in_bytes = 750M; } } Resuling cgroup: zorba:~# ls -la /sys/fs/cgroup/memory/firefox/ total 0 drwxr-xr-x 2 root root 0 Apr 8 13:47 . drwxr-xr-x 4 root root 0 Apr 8 13:47 .. -rw-r--r-- 1 root root 0 Apr 8 13:47 cgroup.clone_children --w--w--w- 1 root root 0 Apr 8 13:47 cgroup.event_control -rw-r--r-- 1 root root 0 Apr 8 13:47 cgroup.procs -rw-r--r-- 1 root root 0 Apr 8 13:47 memory.failcnt --w------- 1 root root 0 Apr 8 13:47 memory.force_empty -rw-r--r-- 1 root root 0 Apr 8 13:47 memory.limit_in_bytes -rw-r--r-- 1 root root 0 Apr 8 13:47 memory.max_usage_in_bytes -rw-r--r-- 1 root root 0 Apr 8 13:47 memory.move_charge_at_immigrate -r--r--r-- 1 root root 0 Apr 8 13:47 memory.numa_stat -rw-r--r-- 1 root root 0 Apr 8 13:47 memory.oom_control -rw-r--r-- 1 root root 0 Apr 8 13:47 memory.soft_limit_in_bytes -r--r--r-- 1 root root 0 Apr 8 13:47 memory.stat -rw-r--r-- 1 root root 0 Apr 8 13:47 memory.swappiness -r--r--r-- 1 root root 0 Apr 8 13:47 memory.usage_in_bytes -rw-r--r-- 1 root root 0 Apr 8 13:47 memory.use_hierarchy -rw-r--r-- 1 root root 0 Apr 8 13:47 notify_on_release -rw-r--r-- 1 root users 0 Apr 8 13:47 tasks Seems to me that last line should be: -rw-rw-r-- 1 root users 0 Apr 8 13:47 tasks -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org