I just had a look at noble's master-next tree:
$ git remote get-url origin
git://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble
$ git branch
* master-next
and found that commit 19c1ceeca8ed is already applied:
$ git log --oneline | grep -n "block: Fix page refcounts for unaligned buffers
in __bio_release_pages"
300:19c1ceeca8ed block: Fix page refcounts for unaligned buffers in
__bio_release_pages()
but not yet tagged with (incl. in) any version:
$ git tag --contains 19c1ceeca8ed
$
This is probably because it just came in via upstream stable updates:
$ git show 19c1ceeca8ed | sed '/^diff --git/q'
commit 19c1ceeca8ed31d207859e659482ee83ea1959f5
Author: Tony Battersby <to...@cybernetics.com>
Date: Thu Feb 29 13:08:09 2024 -0500
block: Fix page refcounts for unaligned buffers in __bio_release_pages()
BugLink: https://bugs.launchpad.net/bugs/2060531
[ Upstream commit 38b43539d64b2fa020b3b9a752a986769f87f7a6 ]
Fix an incorrect number of pages being released for buffers that do not
start at the beginning of a page.
Fixes: 1b151e2435fc ("block: Remove special-casing of compound pages")
Cc: sta...@vger.kernel.org
Signed-off-by: Tony Battersby <to...@cybernetics.com>
Tested-by: Greg Edwards <gedwa...@ddn.com>
Link:
https://lore.kernel.org/r/86e592a9-98d4-4cff-a646-0c0084328...@cybernetics.com
Signed-off-by: Jens Axboe <ax...@kernel.dk>
Signed-off-by: Sasha Levin <sas...@kernel.org>
Signed-off-by: Paolo Pisati <paolo.pis...@canonical.com>
diff --git a/block/bio.c b/block/bio.c
And since the lastest tagged Ubuntu kernel version in master-next is:
Ubuntu-6.8.0-31.31
$ git log --oneline | grep -n $(git describe --tags --abbrev=0)
1170:7fdb45c9bbbc (tag: Ubuntu-6.8.0-31.31) UBUNTU: Ubuntu-6.8.0-31.31
commit 19c1ceeca8ed will be automatically part of the next/upcoming
Ubuntu kernel (> Ubuntu-6.8.0-31.31).
With that I'm updating the status of this bug to Fix Committed.
** Changed in: ubuntu-power-systems
Status: New => Fix Committed
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Committed
** Changed in: ubuntu-power-systems
Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage
(ubuntu-power-triage)
** Changed in: linux (Ubuntu)
Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) =>
(unassigned)
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: ubuntu-power-systems
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/2062556
Title:
[Ubuntu-24.04] Hugepage memory is not getting released even after
destroying the guest!
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