Re: 2.6.35-rc2-git1 - include/linux/cgroup.h:534 invoked rcu_dereference_check() without protection!

On Wed, 2010-06-09 at 17:15 -0400, Miles Lane wrote:

On Wed, Jun 9, 2010 at 2:15 PM, Peter Zijlstra [off-list ref] wrote:

quoted

On Wed, 2010-06-09 at 19:57 +0200, Peter Zijlstra wrote:

quoted

+       /*
+        * We're not in the pid-hash yet so no cgroup attach races, and the
+        * cgroup is pinned by the parent running this.
+        *
+        * Silence PROVE_RCU.
+        */

Hum,.. not sure that's actually true though, the parent itself is still
susceptible to races afaict..

Do you want what you sent earlier tested, or should I wait for another patch?

please wait, I need to sit down and sort out that code.