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Howlett" , Vlastimil Babka , Mike Rapoport , Michal Hocko , Christian Brauner , Muhammad Usama Anjum , linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] selftests/mm: mrelease_test: fix retry limit Date: Fri, 2 Oct 2026 11:55:55 -0700 Message-ID: <20261002185556.41533-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam06 X-Stat-Signature: uxbwwc7skigqnis6y8srb3z1jkatwbzg X-Rspam-User: X-Rspamd-Queue-Id: D4F0B180002 X-HE-Tag: 1790967362-680523 X-HE-Meta: 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 Kx1sTJzx Hw+mzQVelvnU7R7y0T2OCzPh0E3A+lFnRCm7jblnXvVMLQEYGYn/MqOnGVabOaeH8Beh8cjawee/ht9NNPPqbWxQsgtIhCRCl30mPMH5RsseJTXusJRcX8FHmCffZFDeHMA9QgUOdVvLXFRTxogMDTEHFjGrffmRW3Ox8atrl86VR/QfR9MI81p4co3XH0efOIt5T4r7XBta9ymmHR5psbJaSqtN6ZO9k88RiWkEBO7Rx+IyPZnaHB0KWyWMRalhIErQn6pVpwy5DEN5055o2V/wltjBDymuFTmB7lX6trEv4EG2uIoyxpwtiVQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, 30 Sep 2026 23:00:27 -0700 Aveline Noir wrote: > mrelease_test doubles the child allocation when process_mrelease() > returns ESRCH. > > When size is already MAX_SIZE_MB, the current <= check still allows > another retry, causing the allocation to grow from 1024 MB to 2048 MB. > > Use < instead of <= so the largest allocation attempted remains > MAX_SIZE_MB. Makes sense to me. > > LLM used in discovering bug. Changes were made and reviewed manually. > > Fixes: 33776141b812 ("selftests: vm: add process_mrelease tests") > Assisted-by: LLM > Signed-off-by: Aveline Noir Reviewed-by: SJ Park Thanks, SJ [...]