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[96.255.20.138]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8953c075fc3sm5353626d6.51.2026.02.05.15.10.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Feb 2026 15:10:57 -0800 (PST) Date: Thu, 5 Feb 2026 18:10:55 -0500 From: Gregory Price To: Andrew Morton Cc: Cui Chao , dan.j.williams@intel.com, Jonathan Cameron , Mike Rapoport , Wang Yinfeng , linux-cxl@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH v2 1/1] mm: numa_memblks: Identify the accurate NUMA ID of CFMW Message-ID: References: <20260106031042.1606729-1-cuichao1753@phytium.com.cn> <20260106031042.1606729-2-cuichao1753@phytium.com.cn> <20260108094812.8757ce3ad8370668eaafb29c@linux-foundation.org> <9132054c-3017-4af0-84e0-e4359b0794a6@phytium.com.cn> <20260115101858.85fd7b8e837c1c92a4fdc5f0@linux-foundation.org> <696944eca1837_34d2a10056@dwillia2-mobl4.notmuch> <2d1e23ad-7ec1-483b-88b3-70ce19b69106@phytium.com.cn> <20260205145842.efb90572a902ae4c481e6ef6@linux-foundation.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260205145842.efb90572a902ae4c481e6ef6@linux-foundation.org> On Thu, Feb 05, 2026 at 02:58:42PM -0800, Andrew Morton wrote: > On Mon, 26 Jan 2026 17:06:52 +0800 Cui Chao wrote: > > > > All that said, this does look harmless, and seems reasonable - but the > > > changelog should reflect what the hardware is doing above. > > This issue was discovered on the QEMU platform. I need to apologize for > > my earlier imprecise statement (claiming it was hardware instead of > > QEMU). My core point at the time was to emphasize that this is a problem > > in the general code path when facing this scenario, not a QEMU-specific > > emulation issue, and therefore it could theoretically affect real > > hardware as well. I apologize for any confusion this may have caused. > > This patch doesn't sounds very urgent. Perhaps we should do a v3 with > updated changelog and handle that in the next -rc cycle? Mostly QEMU just needs to add SRAT entries associated with the CEDT/CFMWS it adds. A system providing a CEDT/CFMWS entry without an SRAT entry is arguably bad BIOS. But yeah, this is not urgent. ~Gregory