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    SubjectRe: 2.6.35-stable/ppc64/p7: suspicious rcu_dereference_check() usage detected during 2.6.35-stable boot
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    On Mon, 09 Aug 2010 09:12:00 PDT, "Paul E. McKenney" said:
    > On Mon, Aug 02, 2010 at 02:22:12PM +0530, Subrata Modak wrote:
    > > Hi,
    > >
    > > The following suspicious rcu_dereference_check() usage is detected
    > > during 2.6.35-stable boot on my ppc64/p7 machine:
    > >
    > > =========================
    > > [ INFO: suspicious rcu_dereference_check() usage. ]
    > > ---------------------------------------------------
    > > kernel/sched.c:616 invoked rcu_dereference_check() without protection!
    > > other info that might help us debug this:

    > Thank you for locating this one! This looks like the same issue that
    > Ilia Mirkin located. Please see below for my analysis -- no fix yet,
    > as I need confirmation from cgroups experts. I can easily create a
    > patch that suppresses the warning, but I don't yet know whether this is
    > the right thing to do.

    Ping? I just hit it on 2.6.36-rc4-mmotm0915. Just wanted to make sure the
    issue hadn't been lost/forgotten.
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