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From: Jung-uk Kim <jkim@FreeBSD.org>
Date: Tue, 12 Apr 2011 22:41:52 +0000 (UTC)
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Subject: cvs commit: src/sys/x86/isa clock.c
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jkim        2011-04-12 22:41:52 UTC

  FreeBSD src repository

  Modified files:
    sys/x86/isa          clock.c 
  Log:
  SVN rev 220581 on 2011-04-12 22:41:52Z by jkim
  
  Do not use TSC for DELAY(9) if it not P-state invariant to avoid possible
  foot-shooting.  DELAY() becomes unreliable when TSC frequency varies wildly,
  especially cpufreq(4) and powerd(8) are used at the same time.
  
  Revision  Changes    Path
  1.24      +1 -1      src/sys/x86/isa/clock.c