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Fri, 02 Jan 2026 17:32:16 -0800 (PST) Date: Sat, 3 Jan 2026 01:32:15 +0000 From: Wei Yang To: Greg KH Cc: Wei Yang , akpm@linux-foundation.org, baohua@kernel.org, baolin.wang@linux.alibaba.com, david@kernel.org, dev.jain@arm.com, lance.yang@linux.dev, liam.howlett@oracle.com, lorenzo.stoakes@oracle.com, npache@redhat.com, ryan.roberts@arm.com, stable@vger.kernel.org, ziy@nvidia.com Subject: Re: FAILED: patch "[PATCH] mm/huge_memory: merge uniform_split_supported() and" failed to apply to 6.18-stable tree Message-ID: <20260103013215.lvkskim32cvtm2b6@master> Reply-To: Wei Yang References: <2025122925-victory-numeral-2346@gregkh> <20251230031135.efpejaosso23ekke@master> <2026010206-footprint-impure-82b8@gregkh> Precedence: bulk X-Mailing-List: stable@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: <2026010206-footprint-impure-82b8@gregkh> User-Agent: NeoMutt/20170113 (1.7.2) On Fri, Jan 02, 2026 at 01:24:28PM +0100, Greg KH wrote: >On Tue, Dec 30, 2025 at 03:11:35AM +0000, Wei Yang wrote: >> On Mon, Dec 29, 2025 at 01:33:25PM +0100, gregkh@linuxfoundation.org wrote: >> > >> >The patch below does not apply to the 6.18-stable tree. >> >If someone wants it applied there, or to any other stable or longterm >> >tree, then please email the backport, including the original git commit >> >id to . >> > >> >To reproduce the conflict and resubmit, you may use the following commands: >> > >> >git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.18.y >> >git checkout FETCH_HEAD >> >git cherry-pick -x 8a0e4bdddd1c998b894d879a1d22f1e745606215 >> ># >> >git commit -s >> >git send-email --to '' --in-reply-to '2025122925-victory-numeral-2346@gregkh' --subject-prefix 'PATCH 6.18.y' HEAD^.. >> > >> >Possible dependencies: >> > >> > >> >> Hi, Greg >> >> This one is not a fix to some bug. >> >> We found a real bug during the mail discussion, which is >> >> commit cff47b9e39a6abf03dde5f4f156f841b0c54bba0 >> Author: Wei Yang >> Date: Wed Nov 19 23:53:02 2025 +0000 >> >> mm/huge_memory: fix NULL pointer deference when splitting folio >> >> It looks has been back ported to 6.18.y and 6.12.y. > >I do not understand, should this not be applied? Or should it be >applied? Upstream commit cff47b9e39a6 2025-11-24 mm/huge_memory: fix NULL pointer deference when splitting folio should be applied and already applied to 6.18.y and 6.12.y. Upstream commit 8a0e4bdddd1c 2025-11-24 mm/huge_memory: merge uniform_split_supported() and non_uniform_split_supported() is not necessary to be back ported. > >confused, > >greg k-h -- Wei Yang Help you, Help me