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Thu, 13 Aug 2026 09:48:57 +0000 X-Migadu-Flow: FLOW_OUT Message-ID: <58bf1590-25ee-4543-b07d-75465cf13546@linux.dev> Date: Thu, 13 Aug 2026 17:48:53 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH] mm/oom_kill: dump top 5 memory consumers by RSS in OOM report To: Michal Hocko Cc: Andrew Morton , Ye Liu , David Rientjes , Shakeel Butt , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20260811062924.4123014-1-ye.liu@linux.dev> Content-Language: en-US From: Ye Liu In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 50B8F20002 X-Rspamd-Server: rspam10 X-Rspam-User: X-Stat-Signature: z19ts7zfp5x43eh3qfoxo6qctn1dt6ck X-HE-Tag: 1786614539-55611 X-HE-Meta: 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 nwlZR7rJ a7uMJPpK35KfASOEmpOf2aYTji0R7YXDBqz4os771gvqfwAeqYtIFJuNWRdNo7dVEhpaVbTnPMl98QeGCmkiZ+7ZyKZ3jevWdad0ypCXX/SgW2HaLEe6EH2/iSAheoLwn0pbwnDbxR40nvGxl0pcqRGV/SNFIKj9ZIwruuFAzqkXeWXJxNOj6sXZ0x9YaJhKUtOIpy+RXrXlhhXvMAuWH0Qi8WSPl3R/P09Vbk+MBdEZdTtw6iQqOUVbrYgei2lNPmh+dMQu8z674/0fLloXx3ihGmzCnrBCF7UXFobkUFGnixhxS6gb+r/36ldWbUvWlvgY1Z1WSNFrzHzwSUouZMRsQCzD0cVJt65pJ Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 在 2026/8/13 16:12, Michal Hocko 写道: > On Tue 11-08-26 14:29:24, Ye Liu wrote: >> From: Ye Liu >> >> When the OOM killer triggers, dump_tasks() prints every task's memory >> state but in no particular order. On systems with hundreds of >> processes, identifying the heaviest memory consumers requires manual >> log post-processing. > > Yes, but why is that a problem? It should be a pretty easy script, no? I think I've realized that problems that can be solved in user space shouldn't burden the kernel. Thank you. -- Thanks, Ye Liu