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    SubjectRe: [PATCH 0/2] jump label: 2.6.38 updates
    From: Steven Rostedt <>
    Date: Mon, 14 Feb 2011 16:39:36 -0500

    > Thus it is not about global, as global is updated by normal means and
    > will update the caches. atomic_t is updated via the ll/sc that ignores
    > the cache and causes all this to break down. IOW... broken hardware ;)

    I don't see how cache coherency can possibly work if the hardware
    behaves this way.

    In cache aliasing situations, yes I can understand a L1 cache visibility
    issue being present, but with kernel only stuff that should never happen
    otherwise we have a bug in the arch cache flushing support.

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      Last update: 2011-02-14 22:47    [W:0.027 / U:11.012 seconds]
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