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[Bug 1357014] Re: Add THP fixes in 14.10 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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Add THP fixes in 14.10 kernel
Status in “linux” package in Ubuntu:
Status in “linux” source package in Trusty:
Status in “linux” source package in Utopic:
We would like to include 8 patches regarding Transparent Huge Page for
powerpc. The patches are already upstream on Ben powerpc-next tree and
should be sent to Linus' tree today, which mean that they are expected
to make 3.17.
Here are the patches
9e813308a5c18c58f9ccae1ec72ed4e14eaf9025 powerpc/thp: Add tracepoints to track hugepage invalidate
85c1fafd7262e68ad821ee1808686b1392b1167d powerpc/mm: Use read barrier when creating real_pte
7e467245bf5226db34c4b12d3cbacfa2f7a15a8b powerpc/thp: Use ACCESS_ONCE when loading pmdp
969b7b208f7408712a3526856e4ae60ad13f6928 powerpc/thp: Invalidate with vpn in loop
fc0479557572375100ef16c71170b29a98e0d69a powerpc/thp: Handle combo pages in invalidate
629149fae478f0ac6bf705a535708b192e9c6b59 powerpc/thp: Invalidate old 64K based hash page mapping before insert of 4k pte
fa1f8ae80f8bb996594167ff4750a0b0a5a5bb5d powerpc/thp: Don't recompute vsid and ssize in loop on invalidate
b0aa44a3dfae3d8f45bd1264349aa87f87b7774f powerpc/thp: Add write barrier after updating the valid bit
I am also adding the patches here for reference.
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