cvs commit: src/sys/dev/acpica acpi_cpu.c

[Nate Lawson]

njl         2007-11-02 17:29:36 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/acpica       acpi_cpu.c 
  Log:
  Fix a shutdown hang on some SMP systems.  The previous logic was to IPI all
  CPUs to make sure idle threads are evicted from the softc before returning
  from acpi_cpu_shutdown().  However, this is unnecessary since stop_cpus()
  handles this for itself and at this point it's possible that our IPI will be
  blocked (interrupts disabled).
  
  Thanks to:      Glen Leeder <glen.leeder / nokia.com>
  MFC after:      3 days
  
  Revision  Changes    Path
  1.68      +6 -4      src/sys/dev/acpica/acpi_cpu.c