Re: [patch] smptimers, old BH removal, tq-cleanup, 2.5.39

[David S. Miller]

   From: Ingo Molnar <[e-mail]>
   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.