cvs commit: src/sys/i386/i386 mpapic.c

John Baldwin jhb at
Thu Mar 9 16:23:16 UTC 2006

jhb         2006-03-09 16:23:15 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_4)
    sys/i386/i386        mpapic.c 
  Revert the previous change.  Even though Intel insists that the behavior
  this change restores is wrong, it turns out the "proper" method is worse
  in practice for existing machines.  This is probably due to the fact that
  using fixed priority with a physical broadcast destination effectively
  broadcasts interrupts to all CPUs.  Fixing that would require a lot more
  work than just restoring the previous "incorrect" behavior and would
  probably be riskier as well.
  PR:             kern/94160
  Reported by:    Richard Wiwatowski rjwiwat at internode dot on dot net
  Revision  Changes    Path  +3 -3      src/sys/i386/i386/mpapic.c

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