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Message #70641
[Bug 1332063] Re: Support memoryless nodes in Ubuntu kernel
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
trusty' to 'verification-done-trusty'.
If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!
** Tags added: verification-needed-trusty
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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:
Fix Committed
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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References