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From: John Baldwin <jhb@FreeBSD.org>
Date: Tue, 8 Jun 2010 17:08:13 +0000 (UTC)
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Subject: cvs commit: src/sys/amd64/amd64 io_apic.c src/sys/i386/i386
 io_apic.c
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jhb         2010-06-08 17:08:13 UTC

  FreeBSD src repository

  Modified files:
    sys/amd64/amd64      io_apic.c 
    sys/i386/i386        io_apic.c 
  Log:
  SVN rev 208915 on 2010-06-08 17:08:13Z by jhb
  
  - Use a bit more care when moving I/O APIC interrupts between CPUs.  Mask
    the interrupt followed by a brief delay if it is not currently masked
    before moving the interrupt.
  - Move the icu_lock out of ioapic_program_intpin() and into callers.  This
    closes a race where ioapic_program_intpin() could use a stale value of
    the masked state to compute the masked bit in the register.
  
  Reviewed by:    mav
  MFC after:      2 weeks
  
  Revision  Changes    Path
  1.36      +22 -4     src/sys/amd64/amd64/io_apic.c
  1.40      +22 -4     src/sys/i386/i386/io_apic.c