* ccmail111 <ccmail111@xxxxxxxxx> [2010-12-14 10:22:32]: > > > --- On Tue, 12/14/10, Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> wrote: > > > From: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> > > Subject: Re: cgroup tasks file error > > To: "ccmail111" <ccmail111@xxxxxxxxx> > > Cc: "Jue Hong" <honshj@xxxxxxxxx>, containers@xxxxxxxxxxxxxxxxxxxxxxxxxx > > Date: Tuesday, December 14, 2010, 12:41 PM > > On Tue, Dec 14, 2010 at 11:03 PM, > > ccmail111 <ccmail111@xxxxxxxxx> > > wrote: > > > > > > Isn't ns mounted by default ? > > > I rebooted machine, > > > based on 2.6.32 kernel. > > > > > > Then, > > > > > > [host:~]$ mkdir /dev/cgroup > > > [host:~]$ mount -t cgroup cpuset -ocpuset,ns > > /dev/cgroup > > > [host:~]$ ps aux | grep libvirt > > > root 575 0.6 0.9 88816 2216 ? > > Sl 17:28 0:00 myproc --daemon > > > root 654 0.0 0.2 4044 664 ttyS0 > > S+ 17:29 0:00 grep libvirt > > > [host:~]$ mkdir /dev/cgroup/hello > > > [host:~]$ cat /dev/cgroup/hello/tasks > > > [host:~]$ echo 0 > /dev/cgroup/hello/cpuset.cpus > > > [host:~]$ echo 0 > /dev/cgroup/hello/cpuset.mems > > > > Can you paste the output of > > > > cat /dev/cgroup/hello/cpuset.cpus and mems. > > > > Also please paste the o/p of /dev/cgroup/cpuset.cpus and > > mems > > > > > [host:~]$ echo 575 > /dev/cgroup/hello/tasks > > > [host:~]$ cat /dev/cgroup/hello/tasks > > > 575 > > > [host:~]$ id > > > uid=0(root) gid=0(root) groups=0(root) > > > [host:~]$ > > > > > > Now, I try to move the task out - the parent/root: > > > > > > [host:~]$ echo 575 > /dev/cgroup/tasks > > > -bash: echo: write error: Operation not permitted > > > > can you send us the o/p of > > > > ls -al /dev/cgroup > > > > and ls -al /dev/cgroup/hello > > > > Balbir > > > ---- > > Please find output requested below: > > > [host:~]$ mkdir /dev/cgroup/hello > [host:~]$ cat /dev/cgroup/hello/tasks > [host:~]$ echo 0 > /dev/cgroup/hello/cpuset.cpus > [host:~]$ echo 0 > /dev/cgroup/hello/cpuset.mems > [host:~]$ echo 575 > /dev/cgroup/hello/tasks > [host:~]$ cat /dev/cgroup/hello/tasks > 575 > [host:~]$ id > uid=0(root) gid=0(root) groups=0(root) > [host:~]$ echo 575 > /dev/cgroup/tasks > -bash: echo: write error: Operation not permitted > [host:~]$ cat /dev/cgroup/hello/cpuset.cpus > 0 > [host:~]$ cat /dev/cgroup/hello/cpuset.mems > 0 > [host:~]$ cat /dev/cgroup/cpuset.mems > 0 > [host:~]$ cat /dev/cgroup/cpuset.cpus > 0 > [host:~]$ ls -al /dev/cgroup/ > total 0 > drwxr-xr-x 3 root root 0 Dec 14 17:29 . > drwxr-xr-x 11 root root 2980 Dec 14 17:29 .. > -r--r--r-- 1 root root 0 Dec 14 17:29 cgroup.procs > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.cpu_exclusive > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.cpus > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.mem_exclusive > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.mem_hardwall > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.memory_migrate > -r--r--r-- 1 root root 0 Dec 14 17:29 cpuset.memory_pressure > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.memory_pressure_enabled > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.memory_spread_page > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.memory_spread_slab > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.mems > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.sched_load_balance > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.sched_relax_domain_level > drwxr-xr-x 2 root root 0 Dec 14 17:29 hello > -rw-r--r-- 1 root root 0 Dec 14 17:29 notify_on_release > -rw-r--r-- 1 root root 0 Dec 14 17:29 release_agent > -rw-r--r-- 1 root root 0 Dec 14 17:31 tasks > [host:~]$ ls -al /dev/cgroup/hello/ > total 0 > drwxr-xr-x 2 root root 0 Dec 14 17:29 . > drwxr-xr-x 3 root root 0 Dec 14 17:29 .. > -r--r--r-- 1 root root 0 Dec 14 17:29 cgroup.procs > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.cpu_exclusive > -rw-r--r-- 1 root root 0 Dec 14 17:30 cpuset.cpus > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.mem_exclusive > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.mem_hardwall > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.memory_migrate > -r--r--r-- 1 root root 0 Dec 14 17:29 cpuset.memory_pressure > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.memory_spread_page > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.memory_spread_slab > -rw-r--r-- 1 root root 0 Dec 14 17:30 cpuset.mems > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.sched_load_balance > -rw-r--r-- 1 root root 0 Dec 14 17:29 cpuset.sched_relax_domain_level > -rw-r--r-- 1 root root 0 Dec 14 17:29 notify_on_release > -rw-r--r-- 1 root root 0 Dec 14 17:30 tasks > [host:~]$ id > uid=0(root) gid=0(root) groups=0(root) > [host:~]$ > Looks like Serge's ns suggestion solved your problem, right? -- Three Cheers, Balbir _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
