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[Leann Ogasawara <leann.ogasawara@xxxxxxxxxxxxx>]

** Information type changed from Proprietary to Public

** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Xenial)
       Status: New => Fix Released

** Changed in: intel
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1519636

Title:
  [Bug]Handle xapic/x2apic entries in MADT

Status in intel:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released

Bug description:
  In case when BIOS is populating MADT wiht both x2apic and local apic entries (as per ACPI spec), kernel builds it's processor table
  in the following order: BSP, X2APIC, local APIC, resulting in processors on the same core are not separated by core count.

  Platform: KNL

  this is fixed in 4.4 kernel with:
  d81056b x86, ACPI: Handle apic/x2apic entries in MADT in correct order
  9b3fedd ACPI / tables: Add acpi_subtable_proc to ACPI table parsers

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