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Date: Wed, 6 Mar 2013 11:34:06 +0100 From: Ingo Molnar <mingo@...nel.org> To: Ming Lei <ming.lei@...onical.com> Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: lockdep: access percpu variable too early * Ming Lei <ming.lei@...onical.com> wrote: > On Wed, Mar 6, 2013 at 6:20 PM, Ingo Molnar <mingo@...nel.org> wrote: > > > > What's the practical effect of it? Do we copy the value from the boot CPU and > > thus the secondary CPUs start with slightly increased stats? > > Yes, it is the major effect. > > Also the arch dependent __my_cpu_offset might be initialized a bit late. I suspect we could try to fix it - post-initializing it after percpu setup sounds like a viable option, if it does not get too ugly. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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