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    SubjectRe: rcu,sched: spinlock recursion on 3.5-rc2
    On Tue, 12 Jun 2012, Peter Zijlstra wrote:

    > On Tue, 2012-06-12 at 17:07 +0200, Thomas Gleixner wrote:
    > > Hmm, not sure. The deadlock was not triggered in switch_to. It was
    > > just at the beginning of __schedule()
    > >
    > >
    > How can you tell? switch_to() is a macro not a function, it won't ever
    > show up on a stack-trace.. but I think you meant context_switch() but
    > that typically gets inlined, similar problem.

    Bah, I misread the trace and the rcu code. :(

    So, yes the revert should solve the problem. Looks like I need more
    coffee, not Paul :)

    Thanks,

    tglx


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