On Mon, 24 Oct 2011, Yong Zhang wrote: > On Mon, Oct 24, 2011 at 11:24:51AM +0200, Thomas Gleixner wrote: > > > No sure whether it's big issue or not. > > > Mind showing more about your concern? > > > > This is probably not the only place which will run into that issue and > > I have not much interest to patch all those sites. > > If so, I think that kind of violation has been caught in mainline, > because mainline has had CPU_DOWN_PREPARE called under > cpu_hotplug.lock, right? > > Or am I missing something? Hmm, no. I obviously forgot that I moved it in RT :( So yes, it should be safe. Though the question is why cpufreq does not suffer from that that problem in mainline. I'll stare at that code some more. Thanks, tglx -- 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