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b=jeZrNCGs4WD65/u5voFDVJu2Ma65oDUNgRc93clYuDP6GSkDO2JtRtD2xncF6rOI2 2f+OLlBmoWqRoayX9iKMhoc20b25cThk2jBb0mFWXneLqCuC/JOxRzaWbZxaNP8SLS 9RzCNa1AVLdPFVE5wULRVgyAMqn8BqnXPzPi1xzLaM46f9g/uC3JH41cFZExF7CSeN ySRjyaJmg3l3UhFQM3zwMaWmasvYp9sGVi09quy7ghOxmFTcDDCoV36uR+Ycea6QGJ +YMFqmJ2PRvtm3nilju2fFUKWf9Hxf/VfAQQ1K7x+lOMHjH/cJST+XvjoMnWt0AErK z99k0CK0c7IbQ== From: SJ Park To: Zenghui Yu Cc: SJ Park , damon@lists.linux.dev, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, shuah@kernel.org, akpm@linux-foundation.org, ekffu200098@gmail.com Subject: Re: [PATCH] selftests/damon: stop kdamond on error exits of no-op commit test Date: Mon, 7 Sep 2026 09:41:34 -0700 Message-ID: <20260907164135.97543-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260907123455.67246-1-zenghui.yu@linux.dev> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: EAB9D1A0006 X-Stat-Signature: s5x5e6knkjpdkofbbubb93g1asuwp69h X-Rspam-User: X-HE-Tag: 1788799302-788345 X-HE-Meta: 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 yms3NxRx GgDvwbKx5HmjPrZzcFViU0zKaPeuqsQcdXCVjeXWjYvVkbVYXDkzuoqZlg2KtXPapLY31+01UPmhQUv7UUhaHqMbKsYgkmXbTZuPkOyaGJE/VECtDwQrQJ7VsR967rXp7D+9Z65GRysWav41na5NEbiPA9ZUdwAQ0LRKN5sHgxO6usAReshlD6t/mFyCHaPGbQX5t8wW5RlygVOmFrxvKBzIS6rSupEn3WYzNSLS1iMDNU7Xn1uS288NepiMzhIGmFn3Ot4wxk7fiKQjrRL/qVHxiFYt3AHEpBB/A Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 7 Sep 2026 20:34:55 +0800 Zenghui Yu wrote: > From: "Zenghui Yu (Huawei)" > > The sysfs_no_op_commit_break test starts a kdamond via sysfs, but its error > paths (e.g., drgn not installed) exit without stopping it. The leaked > kdamond then makes subsequent tests, e.g. lru_sort.sh and reclaim.sh, skip > with "Another kdamond is running". > > Wrap the post-start logic in try-finally so that kdamonds.stop() is > executed on every exit path. Looks good to me, thank you for fixing this, Zenghui. > > Fixes: 10725cd2b09a ("selftests/damon: test no-op commit broke DAMON status") > Assisted-by: GLM-5.3 OpenCode > Signed-off-by: Zenghui Yu (Huawei) Reviewed-by: SJ Park This patch is applied to damon/next [1] tree. If this patch is not added to mm.git in short term (~1 week?), I will ask mm.git maintainer (Andrew Morton) to pick this. So, no action from your side is needed for now. If it seems I also forgot doing that or you cannot wait for my action, please feel free to directly ask that to Andrew. [1] https://origin.kernel.org/doc/html/latest/mm/damon/maintainer-profile.html#scm-trees Thanks, SJ [...]