[PATCH 0/8][SRU][OEM-5.17] System hang during S3 test

[AceLan Kao]

From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>

BugLink: https://launchpad.net/bugs/1990330

[Impact]
It hangs while doing S3 test on the platform with CPU Intel(R) Pentium(R)
Silver N6005 @ 2.00GHz

[Fix]
Can't reproduce this issue with v5.18-rc1 kernel, so bisecting the kernel
and found this below commit
   567511462387 mm/memcg: protect memcg_stock with a local_lock_t
For safty, I backported the series of the patch
   https://www.spinics.net/lists/cgroups/msg31595.html
But I still can reproduce the issue after applied those patches on top of
5.17 oem kernel.
So, I did a second round of bisecting and found below commit is required, too
   a74c6c00b1cb mm/memremap: avoid calling kasan_remove_zero_shadow() for device private memory

[Test]
Done the S3 test 400 times on the target and it's still working well.

[Where problems could occur]
Hard to evaluate the impact, but from the overnight test, the memory usage
is still low, so there should be no memory leakage, and can't find any fix
patch for those applied commits from upstream and linux-next trees.
The patches are all from v5.18-rc1, so we only need them to be applied on
oem-5.17 kernel, and will let QA to do thoroughly tests.

Johannes Weiner (1):
  mm/memcg: opencode the inner part of obj_cgroup_uncharge_pages() in
    drain_obj_stock()

Miaohe Lin (1):
  mm/memremap: avoid calling kasan_remove_zero_shadow() for device
    private memory

Michal Hocko (1):
  mm/memcg: revert ("mm/memcg: optimize user context object stock
    access")

Sebastian Andrzej Siewior (4):
  mm/memcg: disable threshold event handlers on PREEMPT_RT
  mm/memcg: protect per-CPU counter by disabling preemption on
    PREEMPT_RT where needed.
  mm/memcg: protect memcg_stock with a local_lock_t
  mm/memcg: disable migration instead of preemption in
    drain_all_stock().

Yosry Ahmed (1):
  memcg: add per-memcg total kernel memory stat

 .../admin-guide/cgroup-v1/memory.rst          |   2 +
 Documentation/admin-guide/cgroup-v2.rst       |   5 +
 include/linux/memcontrol.h                    |   1 +
 mm/memcontrol.c                               | 257 +++++++++++-------
 mm/memremap.c                                 |   3 +-
 5 files changed, 173 insertions(+), 95 deletions(-)

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2.25.1