From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zefan Li Subject: [PATCH -next] cpuset: initialize cpuset a bit early Date: Wed, 4 Mar 2015 17:09:33 +0800 Message-ID: <54F6CBCD.50009@huawei.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Tejun Heo Cc: LKML , Cgroups , Ming Lei , Vladimir Davydov 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 Fixes: 295458e67284 ("cgroup: call cgroup_subsys->bind on cgroup subsys initialization") Reported by: Ming Lei Signed-off-by: Zefan Li --- init/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/init/main.c b/init/main.c index 61b9937..50d1e95 100644 --- a/init/main.c +++ b/init/main.c @@ -667,8 +667,8 @@ asmlinkage __visible void __init start_kernel(void) page_writeback_init(); proc_root_init(); nsfs_init(); - cgroup_init(); cpuset_init(); + cgroup_init(); taskstats_init_early(); delayacct_init(); -- 1.8.0.2