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Date: Mon, 30 Sep 2002 21:18:48 -0700 (PDT)
Message-Id: <20020930.211848.131274580.davem@redhat.com>
To: mingo@elte.hu
Cc: george@mvista.com, torvalds@transmeta.com, linux-kernel@vger.kernel.org,
       wli@holomorphy.com, dipankar@in.ibm.com, kuznet@ms2.inr.ac.ru
Subject: Re: [patch] smptimers, old BH removal, tq-cleanup, 2.5.39
From: "David S. Miller" <davem@redhat.com>
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   From: Ingo Molnar <mingo@elte.hu>
   Date: Tue, 1 Oct 2002 05:51:45 +0200 (CEST)

   -	/*
   -	 * ok, Intel has some smart code in their APIC that knows
   -	 * if a CPU was in 'hlt' lowpower mode, and this increases
   -	 * its APIC arbitration priority. To avoid the external timer
   -	 * IRQ APIC event being in synchron with the APIC clock we
   -	 * introduce an interrupt skew to spread out timer events.
   -	 *
   -	 * The number of slices within a 'big' timeslice is NR_CPUS+1
   -	 */
   -

I did some thinking, and I don't understand how this old code
can be legal.  Doesn't this make do_gettimeofday() inaccurate?

I must be missing something.
-
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