cvs commit: src/sys/i386/acpica acpi_wakeup.c

Peter Wemm peter at
Mon Jul 21 13:59:30 PDT 2003

peter       2003/07/21 13:59:28 PDT

  FreeBSD src repository

  Modified files:
    sys/i386/acpica      acpi_wakeup.c 
  Commit Ian Dowse's workaround for acpi resume resetting after the
  LAZY_SWITCH changes.  He pointed out the acpi code sets up an identity
  mapping in the current vmspace and that got messed up by the %cr3 being
  out of sync with the current page directory.  As a workaround, restore
  %cr3 across the sleep/resume.  A more complete fix would be to undo the
  lazy state and clear the pm_active bit from the borrowed pmap, but this
  works and people are currently hurting.  I'll clean this up.
  This is mostly Ian's patch, plus a PAE tweak from me.
  Revision  Changes    Path
  1.22      +8 -0      src/sys/i386/acpica/acpi_wakeup.c

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