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Shutemov" , Hugh Dickins , Baolin Wang , linux-mm@kvack.org, linux-kernel@vger.kernel.org, steve.kang@unisoc.com References: <20240412064353.133497-1-zhaoyang.huang@unisoc.com> <20240412143457.5c6c0ae8f6df0f647d7cf0be@linux-foundation.org> Content-Language: en-US From: Marcin Wanat In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Virus-Scanned: clamav-milter 0.103.6 at mx.bitactive.com X-Virus-Status: Clean X-Stat-Signature: 6nhhaoes95niamxf8o6k4q4bqiomjhpb X-Rspamd-Queue-Id: AC6C31C0003 X-Rspam-User: X-Rspamd-Server: rspam10 X-HE-Tag: 1716306461-930180 X-HE-Meta: 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 WJ62Df+c bM5hR4xAiRmzX45F8vZPVBkyK+ih+Ds5yAnCKUNApVSdsB+t5Vle7bxCPj5jAMd7MVhp6sSykbxJi95mt2kdNqClrcrRKykXEcMaQdijJ+q1JPzT8XexllDNlqPejsuEHBz8wiGZHs6gezQ8Mjb32xPiE2ti3PeCJjcSviuSET9KKnGQCxOhzRNGFsKIUhA3HhOSHEkIDdvksZ4kMEZy1bF/+hjspdhBrreNWr5bxJVE3zPBarvEYhZrIokEsUTfk+ojkSuhxyVh34MMa8ZRpVbk+g6s4/243vuftSn+wQz+1aTJZRqhXfYmmGE2r8sXSU19KVDlE0KT8STlu9Y+1p4u0Zdd5cIo/PIO/Salp4nCLWjtdy9LygsFRVDaNjPbUVFdrVokBZrZC27gOqUdjUAafMsOCAd/KpdY8 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: On 21.05.2024 03:00, Zhaoyang Huang wrote: > On Tue, May 21, 2024 at 8:58 AM Zhaoyang Huang wrote: >> >> On Tue, May 21, 2024 at 3:42 AM Marcin Wanat wrote: >>> >>> On 15.04.2024 03:50, Zhaoyang Huang wrote: >>> I have around 50 hosts handling high I/O (each with 20Gbps+ uplinks >>> and multiple NVMe drives), running RockyLinux 8/9. The stock RHEL >>> kernel 8/9 is NOT affected, and the long-term kernel 5.15.X is NOT affected. >>> However, with long-term kernels 6.1.XX and 6.6.XX, >>> (tested at least 10 different versions), this lockup always appears >>> after 2-30 days, similar to the report in the original thread. >>> The more load (for example, copying a lot of local files while >>> serving 20Gbps traffic), the higher the chance that the bug will appear. >>> >>> I haven't been able to reproduce this during synthetic tests, >>> but it always occurs in production on 6.1.X and 6.6.X within 2-30 days. >>> If anyone can provide a patch, I can test it on multiple machines >>> over the next few days. >> Could you please try this one which could be applied on 6.6 directly. Thank you! > URL: https://lore.kernel.org/linux-mm/20240412064353.133497-1-zhaoyang.huang@unisoc.com/ > Unfortunately, I am unable to cleanly apply this patch against the latest 6.6.31