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Wed, 25 Sep 2024 21:25:17 +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 V2 2/2] Documentation: admin-guide: kernel-parameters: Add parameter description for slub_leak_panic function Date: Wed, 25 Sep 2024 21:25:05 +0800 Message-ID: <20240925132505.21278-3-fangzheng.zhang@unisoc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240925132505.21278-1-fangzheng.zhang@unisoc.com> References: <20240925132505.21278-1-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 48PDPKph032238 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 816CC40018 X-Stat-Signature: re7s5pfa7wacguh1p4nwb37nwjera1kn X-Rspam-User: X-HE-Tag: 1727271120-687589 X-HE-Meta: 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 FvQsQ9Cr OBxhdcCElwxfAO0XJqSA3Ht6z6a/gOK50ggFTEeKFwKvvGn+VRpgR+dk/TlvSUTJjP0rUaUbEKo6knWXFKdMpKtUve9J8VKwwLNCY4cFUBC0Znbl/3rqpm2D8N8nDkZpVYPx8UGDsOEUuT8RkP5/+DTgD2defRnpP9RnCgN1Tj7UlH7fD3QaE8oawz1AbBRcCt8KRkmZJqB/YM1yKAZQXl/8LGElblA9xOjMMed8K3Xh9xh4b+rGMN+621boh7s4SJOibAUE2VxOIXGGsuVTWSWLMGl2LuCngn0nNbsyjeIcOwWVLLfD+6A8+pY7+UXNxuRvUP6S/NmyUb7DnbAqWuQgXkQ== 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]