** 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
To manage notifications about this bug go to:
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