Re: 2.6.35-rc2-git1 - include/linux/cgroup.h:534 invoked rcu_dereference_check() without protection!
From: Peter Zijlstra <peterz@infradead.org>
Date: 2010-06-09 21:21:26
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From: Peter Zijlstra <peterz@infradead.org>
Date: 2010-06-09 21:21:26
Also in:
lkml
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.