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From: John Baldwin <jhb@FreeBSD.org>
Date: Tue, 15 Jun 2010 19:14:39 +0000 (UTC)
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Subject: cvs commit: src/sys/dev/acpica acpi_cpu.c
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jhb         2010-06-15 19:14:39 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/acpica       acpi_cpu.c 
  Log:
  SVN rev 209213 on 2010-06-15 19:14:39Z by jhb
  
  When updating individual CPU's lowest Cx state to use, never set it to a
  state lower than the lowest one supported by the current CPU.  This closes
  some races with changes to the hw.acpi.cpu_cx_lowest sysctl while Cx
  states for individual CPUs were changing (e.g. unplugging the AC adapter
  of a laptop) that could result in panics.
  
  Submitted by:   Giovanni Trematerra
  Tested by:      David Demelier  demelier dot david of gmail
  MFC after:      3 days
  
  Revision  Changes    Path
  1.87      +3 -1      src/sys/dev/acpica/acpi_cpu.c