From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 15E612571D7 for ; Fri, 2 Jan 2026 12:24:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767356672; cv=none; b=CVsgDH445KIO3fCZlWjQ4QdINmPBuII7phFPBO56rTpw4U1EEv+7/mg29LCwTvBh80MRJOmXaqmi0lXKvkfIIiBADKHSa8TdGlxS4G4rcelH16jeZv25is1zDjJJa9EWnfbdYXFOTWfNWFuki/SJkUnrrwNo9iOJmKKJc7atujQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767356672; c=relaxed/simple; bh=drxGlulLiVHGCK3RMD8I6+ltWQy9V3l/2e+ULnsuM+k=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=r0zOf1QhvziWhjUw8LCZZWNPf6TTaJo52QfdFt1O9ZCBWd+cos2AQYjR434fFlwI4Ydm3+R7VjCAEtIs9uLGB+buFXzrXYJcRVx2wBefuMBTg51OCbYQmhNtMKPHUv4tEBFzf9VexBo6wkUM8KdYJ2qnZVNqE7S50rMiSKLR5SM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=caXCaFDb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="caXCaFDb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B4AB9C116B1; Fri, 2 Jan 2026 12:24:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767356671; bh=drxGlulLiVHGCK3RMD8I6+ltWQy9V3l/2e+ULnsuM+k=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=caXCaFDbPHhIdB0mpfBT8fwsg8+/yY4GzxzXCUUUE0Ay5AOOygGCPbX16m9bZ2EGz BQd2Q2/AmqSc/x3CaGTw6BMiHZIWqo2NF9rL8pWiBZXOseeKteQsl/ymlMcEUBDYtS alYy3VUh/mG+hfptTo+6JFk5xv2LwKqOy78h6XOo= Date: Fri, 2 Jan 2026 13:24:28 +0100 From: Greg KH To: Wei Yang Cc: 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: <2026010206-footprint-impure-82b8@gregkh> References: <2025122925-victory-numeral-2346@gregkh> <20251230031135.efpejaosso23ekke@master> 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: <20251230031135.efpejaosso23ekke@master> 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? confused, greg k-h