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On Thu, 2012-03-08 at 23:20 +0100, Peter Zijlstra wrote: > and with rt-mutex having the equal priority lock stealing this reverts > to a plain test-and-set lock. There's only a tiny window in which A can > actually get the lock and that is hampered by B's cpu owning the > cacheline in exclusive mode. > > I simply cannot see guaranteed progress here. This can be easily fixed by not having the lateral steal when a lock has a priority. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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