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Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data
Date 2016-02-18 11:00 +0100
Message-ID <r3txn-3CY-5@gated-at.bofh.it> (permalink)
References (3 earlier) <r3hPB-3LD-31@gated-at.bofh.it> <r3iiD-3Xr-31@gated-at.bofh.it> <r3iBY-4nq-13@gated-at.bofh.it> <r3rYB-2K0-13@gated-at.bofh.it> <r3te2-3vZ-7@gated-at.bofh.it>
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On Thu, Feb 18, 2016 at 01:35:56AM -0800, Stephane Eranian wrote:
> But let's assume that the BIOS does some weird mappings and that the
> id for socket0 is indeed 0
> but for socket1 it is 255. Then doing:

Right, that would be fail. But Andi was talking about physical hotplug,
and that should work if the BIOS isn't weird like that.

Now obviously we cannot trust the BIOS to not be weird and tglx is
working on new topology bits that can indeed accommodate BIOS fail.

Would still be good to complain on boot if we find such weirdness, even
if its not fatal anymore.

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Thread

[patch 07/11] x86/perf/uncore: Track packages not per cpu data Thomas Gleixner <tglx@linutronix.de> - 2016-02-17 14:50 +0100
  Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Stephane Eranian <eranian@google.com> - 2016-02-17 22:20 +0100
    Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Thomas Gleixner <tglx@linutronix.de> - 2016-02-17 22:30 +0100
    Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Andi Kleen <andi@firstfloor.org> - 2016-02-17 22:30 +0100
      Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Thomas Gleixner <tglx@linutronix.de> - 2016-02-17 23:00 +0100
        Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Andi Kleen <andi@firstfloor.org> - 2016-02-17 23:20 +0100
          Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Thomas Gleixner <tglx@linutronix.de> - 2016-02-17 23:40 +0100
          Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Ingo Molnar <mingo@kernel.org> - 2016-02-18 09:00 +0100
          Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Peter Zijlstra <peterz@infradead.org> - 2016-02-18 09:20 +0100
            Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Stephane Eranian <eranian@google.com> - 2016-02-18 10:40 +0100
              Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Peter Zijlstra <peterz@infradead.org> - 2016-02-18 11:00 +0100
              Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Thomas Gleixner <tglx@linutronix.de> - 2016-02-18 11:30 +0100
            Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Thomas Gleixner <tglx@linutronix.de> - 2016-02-18 11:30 +0100
              Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Thomas Gleixner <tglx@linutronix.de> - 2016-02-18 12:00 +0100
                Re: [patch 07/11] x86/perf/uncore: Track packages not per cpu data Thomas Gleixner <tglx@linutronix.de> - 2016-02-19 09:50 +0100

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