On Wed, Mar 04, 2015 at 05:09:33PM +0800, Zefan Li wrote:

Now we call ss->bind() in cgroup_init(), so cgroup_init() will
call cpuset_bind() and then the latter will access top_cpuset's
cpumask, which is NULL, because cpuset_init() is called after
cgroup_init()

The simplest fix is to swap cgroup_init() and cpuset_init().

Cc: Vladimir Davydov <redacted>
Fixes: 295458e67284 ("cgroup: call cgroup_subsys->bind on cgroup subsys initialization")
Reported by: Ming Lei [off-list ref]
Signed-off-by: Zefan Li <redacted>

Acked-by: Vladimir Davydov <redacted>

Thanks!