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[Tim Gardner <tim.gardner@xxxxxxxxxxxxx>]

Public bug reported:

Several patches have gone upstream recently that improve powerpc's
handling of memoryless nodes. These can be present in guests, but more
importantly can be seen in Power8 host/PowerNV systems due to the
manufacturing population of DIMMs.

Upstream commits:

81c98869faa5f3a9457c93efef908ef476326b31 (kthread: ensure locality of
task_struct allocations)

844e4d66f4ec3b6b6d3bcfcfba3ade2b962771e2 (slub: search partial list on
numa_mem_id(), instead of numa_node_id())

8c272261194dfda11cc046fbe808e052f6f284eb (powerpc/numa: Enable
USE_PERCPU_NUMA_NODE_ID)

64bb80d87f01ec01c76863b61b457e0904387f2f (powerpc/numa: Enable
CONFIG_HAVE_MEMORYLESS_NODES)

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Fix Released

** Affects: linux (Ubuntu Trusty)
     Importance: Undecided
     Assignee: Tim Gardner (timg-tpi)
         Status: In Progress

** Affects: linux (Ubuntu Utopic)
     Importance: Undecided
         Status: Fix Released

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

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

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

** Changed in: linux (Ubuntu Trusty)
       Status: New => In Progress

** Changed in: linux (Ubuntu Trusty)
     Assignee: (unassigned) => Tim Gardner (timg-tpi)

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https://bugs.launchpad.net/bugs/1332063

Title:
  Support memoryless nodes in Ubuntu kernel

Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Trusty:
  In Progress
Status in “linux” source package in Utopic:
  Fix Released

Bug description:
  Several patches have gone upstream recently that improve powerpc's
  handling of memoryless nodes. These can be present in guests, but more
  importantly can be seen in Power8 host/PowerNV systems due to the
  manufacturing population of DIMMs.

  Upstream commits:

  81c98869faa5f3a9457c93efef908ef476326b31 (kthread: ensure locality of
  task_struct allocations)

  844e4d66f4ec3b6b6d3bcfcfba3ade2b962771e2 (slub: search partial list on
  numa_mem_id(), instead of numa_node_id())

  8c272261194dfda11cc046fbe808e052f6f284eb (powerpc/numa: Enable
  USE_PERCPU_NUMA_NODE_ID)

  64bb80d87f01ec01c76863b61b457e0904387f2f (powerpc/numa: Enable
  CONFIG_HAVE_MEMORYLESS_NODES)

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