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Sat, 22 Nov 2025 11:36:14 +0000 (UTC) Date: Sat, 22 Nov 2025 12:36:12 +0100 From: Borislav Petkov To: Shiju Jose Cc: Daniel Ferguson , Jonathan Cameron , "rafael@kernel.org" , "akpm@linux-foundation.org" , "rppt@kernel.org" , "dferguson@amperecomputing.com" , "linux-edac@vger.kernel.org" , "linux-acpi@vger.kernel.org" , "linux-mm@kvack.org" , "linux-doc@vger.kernel.org" , "tony.luck@intel.com" , "lenb@kernel.org" , "Yazen.Ghannam@amd.com" , "mchehab@kernel.org" , Linuxarm , "rientjes@google.com" , "jiaqiyan@google.com" , "Jon.Grimm@amd.com" , "dave.hansen@linux.intel.com" , "naoya.horiguchi@nec.com" , "james.morse@arm.com" , "jthoughton@google.com" , "somasundaram.a@hpe.com" , "erdemaktas@google.com" , "pgonda@google.com" , "duenwen@google.com" , "gthelen@google.com" , "wschwartz@amperecomputing.com" , "wbs@os.amperecomputing.com" , "nifan.cxl@gmail.com" , tanxiaofei , "Zengtao (B)" , Roberto Sassu , "kangkang.shen@futurewei.com" , wanghuiqiang Subject: Re: [PATCH v12 1/2] ACPI:RAS2: Add ACPI RAS2 driver Message-ID: <20251122113612.GAaSGgLOTZHWXQgpzY@fat_crate.local> References: <20250912141155.GAaMQqK4vS8zHd1z4_@fat_crate.local> <9433067c142b45d583eb96587b929878@huawei.com> <20250917162253.GCaMrgXYXq2T4hFI0w@fat_crate.local> <20250917183608.000038c4@huawei.com> <20250919103950.GCaM0y9r6R6b5jfx8z@fat_crate.local> <6ac4ad35975142df986bfcb27d1e9b2c@huawei.com> <20251015223242.GBaPAhCuS7YWqu-aH0@fat_crate.local> <75e9bae2d30748d5b66c288135915cc3@huawei.com> <20251103131914.GEaQir0sdz4Te_ea0l@fat_crate.local> <409217e466a9497697a82e2ac8a6a5f7@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <409217e466a9497697a82e2ac8a6a5f7@huawei.com> X-Rspamd-Server: rspam12 X-Rspam-User: X-Rspamd-Queue-Id: E4BA7120004 X-Stat-Signature: zscwpesexed88pz4ab8gtceqxw5d47eu X-HE-Tag: 1763811418-169858 X-HE-Meta: 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 Y4yt9zZv hBSOa8Veb+T5xMQnQUw3l5cp3FbH9NNAtWQ5QkvOmgrWeF+9kKuNgTFjmQbXrzFUi9GYPdxL6n65wLzLZ0YjYbK83b/IimJS9hymqIFFZWhoz0rUbZ+NyfixHnxOM0H7XkOlya+2LvlfsCoKp3XouEAU4iKDJqwYi0SZr2596ugK294pppo3VqA6aJom0JORhzqiM9ilVBYFR9QkI+86GuLnSo66rkndK/k7y//V8YdzY15t6eK0YNe4Kd0HbYu0eGYWM26IHJye21C6YZra3tf1b+fEOFdCCJw27jQ9zU3BxtX+fYpaMYPWNZjo2V66nbGkza5K3T8wSB9DV7X2P+AX9mSBYYnahDQ7GTTsIz5SdqGg= 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 Tue, Nov 04, 2025 at 12:55:48PM +0000, Shiju Jose wrote: > Thanks Borislav for the valuable suggestion and it make sense. Since > presently we are not sure how reaching the end of the node work on > individual platforms, can we do this as an optimization in the next stage? > and Can we start with basic demand scrubbing without address range control > in sysfs, but with user space set only scrub rate and enable_demand, kernel > set the node's addr range as Requested Address Range to start the demand > scrubbing on entire node, as you suggested? Yap, I like starting simple and then delving into a more involved solution which is dictated by real life. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette