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Wed, 25 Sep 2024 11:15:30 +0800 (CST) Received: from bj10906pcu1.spreadtrum.com (10.0.73.72) by BJMBX02.spreadtrum.com (10.0.64.8) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Wed, 25 Sep 2024 11:23:11 +0800 From: Fangzheng Zhang To: Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Vlastimil Babka , Roman Gushchin , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Greg KH CC: , , , Fangzheng Zhang , Fangzheng Zhang , Yuming Han Subject: [PATCH 2/2] Documentation: admin-guide: kernel-parameters: Add parameter description for slub_leak_panic function Date: Wed, 25 Sep 2024 11:22:56 +0800 Message-ID: <20240925032256.1782-3-fangzheng.zhang@unisoc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240925032256.1782-1-fangzheng.zhang@unisoc.com> References: <20240925032256.1782-1-fangzheng.zhang@unisoc.com> MIME-Version: 1.0 X-Originating-IP: [10.0.73.72] X-ClientProxiedBy: SHCAS03.spreadtrum.com (10.0.1.207) To BJMBX02.spreadtrum.com (10.0.64.8) X-MAIL: SHSQR01.spreadtrum.com 48P3NE3x054301 X-Rspam-User: X-Rspamd-Queue-Id: 17AE71C0006 X-Rspamd-Server: rspam01 X-Stat-Signature: 69gr5mi14xmhzfwcsghzbx81x46rirz8 X-HE-Tag: 1727234646-211173 X-HE-Meta: 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 eIDRQD13 aE6i+vCu4n+OOYFfxDThsan6sD5Y+MYyYHCQnB13oao1Q1kUTP0+/vpdYypDKnc9tSQhaAAPIL2WNJwulCuMlI+uoS0akDgdnMbmDSb3huzOgBAHs4AakrPnx0+9eD3uKy1yrYKfEMb1AyqY3onK2UJ2qqtox2H+IDepbEsUfnq0mNcbvAysH52Wa2CECxmOLYiPWKHMacCwKShlYTlIsHnurTbdJh2HXveyf X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Introduce the details of the slub_leak_panic parameters in kernel-parameters.txt, so that users can understand how to use the parameters more quickly. Signed-off-by: Fangzheng Zhang --- Documentation/admin-guide/kernel-parameters.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index bb48ae24ae69..8a672766f05f 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -6130,6 +6130,21 @@ For more information see Documentation/mm/slub.rst. (slub_nomerge legacy name also accepted for now) + slub.leak_panic= [MM, SLUB] + Enabling slub.leak_panic can monitor the slub usage + in real time on the slub allocation path. When the + slub occupancy is abnormal, the alarm or panic will + be triggered. + Default: N + + slub.leak_panic_threshold= [MM, SLUB] + Upper limit value of the slub usage, expressed as + a percentage of memtotal. When the usage exceeds + the set value (threshold * memtotal / 100), the + slub_leak_panic function will be trigger. The + value setting range is [0, 100]. + Default: 0 + slram= [HW,MTD] smart2= [HW]