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Wed, 17 Jun 2026 05:28:31 -0700 (PDT) Date: Wed, 17 Jun 2026 14:28:29 +0200 From: Michal =?utf-8?Q?Koutn=C3=BD?= To: Li Wang , tj@kernel.org Cc: akpm@linux-foundation.org, longman@redhat.com, roman.gushchin@linux.dev, hannes@cmpxchg.org, yosry@kernel.org, jiayuan.chen@linux.dev, nphamcs@gmail.com, chengming.zhou@linux.dev, shuah@kernel.org, linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v7 0/8] selftests/cgroup: improve zswap tests robustness and support large page sizes Message-ID: References: <20260424040059.12940-1-li.wang@linux.dev> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="4yjtviewjv7h5rrp" Content-Disposition: inline In-Reply-To: <20260424040059.12940-1-li.wang@linux.dev> --4yjtviewjv7h5rrp Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH v7 0/8] selftests/cgroup: improve zswap tests robustness and support large page sizes MIME-Version: 1.0 On Fri, Apr 24, 2026 at 12:00:51PM +0800, Li Wang wrote: > This patchset aims to fix various spurious failures and improve the overa= ll > robustness of the cgroup zswap selftests. >=20 > The primary motivation is to make the tests compatible with architectures > that use non-4K page sizes (such as 64K on ppc64le and arm64). Currently, > the tests rely heavily on hardcoded 4K page sizes and fixed memory limits. > On 64K page size systems, these hardcoded values lead to sub-page granula= rity > accesses, incorrect page count calculations, and insufficient memory pres= sure > to trigger zswap writeback, ultimately causing the tests to fail. >=20 > Additionally, this series addresses OOM kills occurring in test_swapin_no= zswap > by dynamically scaling memory limits, and prevents spurious test failures > when zswap is built into the kernel but globally disabled. >=20 > Changes in v7: > Replace my work email by li.wang@linux.dev address. > Add Acked-by: Nhat Pham to series. > Rebase to the latest branch (only one tiny conflict resolved). I think the patches from the series where I had no special remarks can be applied already (and base next (smaller) series on that). 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