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 C920429D27A; Fri, 14 Nov 2025 22:39:10 +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=1763159951; cv=none; b=YJHVuTDoupfNN8pjHZvMxydXOQCfKwLpzZWKr9NArCOsP74pEGZ3RszSDxV4QsL931XA8wPzNPZ8CiT7TuRbCGuMYyXj2/S9pFxMOZaG8KNQPKt2cunYQHCu8s6NC2Z0VmDAm+LXUop0fzqiiMibqTl04m4qufMSTnEkPG/c/24= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763159951; c=relaxed/simple; bh=MYESjMwsofYhqqquOVfZchs52Vx8aKwvtmP2Lmh5LHE=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=eqKESJ9r0dTl36FPXVIC4UmfVJ0WgprJ7cM/8TIRDCdmbFeQRpIeR1wCQHW3Rbtw224ALufiwHUhvQeYaGJ4ETtUGuGRrnuBoDNLPbmCEljj5175ByQlcCwtwxnbySOp9/ZeTF7swC1Dlxmh70VeO+VWz66akfsDvgCujigaNKA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=i8uaM4bq; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="i8uaM4bq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BFF69C4CEF5; Fri, 14 Nov 2025 22:39:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1763159950; bh=MYESjMwsofYhqqquOVfZchs52Vx8aKwvtmP2Lmh5LHE=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=i8uaM4bqM/bAoszT1IjaRnvMQKaHJOAf2cjkjEQMgfdFGodOKmrvYIXQ72E7IljE2 wMLOmULdxSobtPEPSgdfYKeEuuC2Hw7V/uPUKlTFV0IvsQICMERyNtvFwZHby9fF+p B/R2us7EVhMEVKTjjFgmroiAhM5yIjim9sXODTgc= Date: Fri, 14 Nov 2025 14:39:09 -0800 From: Andrew Morton To: "David Hildenbrand (Red Hat)" Cc: Lorenzo Stoakes , Carlos Llamas , Peter Xu , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Shuah Khan , Ujwal Kundur , Brendan Jackman , kernel-team@android.com, linux-kernel@vger.kernel.org, stable@vger.kernel.org, "open list:MEMORY MANAGEMENT - USERFAULTFD" , "open list:KERNEL SELFTEST FRAMEWORK" Subject: Re: [PATCH] selftests/mm: fix division-by-zero in uffd-unit-tests Message-Id: <20251114143909.14ecee31b88f179bc2858e30@linux-foundation.org> In-Reply-To: <9d30836b-9ddb-4432-aa39-85e32c2ea645@kernel.org> References: <20251113034623.3127012-1-cmllamas@google.com> <4a60a703-d9c2-46a8-83b4-a7ecff7f6ba2@lucifer.local> <20251113153205.6507ecb308e7d09362905da7@linux-foundation.org> <9d30836b-9ddb-4432-aa39-85e32c2ea645@kernel.org> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) 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-Transfer-Encoding: 7bit On Fri, 14 Nov 2025 09:11:40 +0100 "David Hildenbrand (Red Hat)" wrote: > >>> Oops, I keep getting confused about this Cc stable thing. Please let me > >>> know if a v2 dropping the tag is needed. > >> > >> No need, Andrew should spot the objection and drop the tag :) > > > > I actually add cc:stable tags to selftests fixes! > > > > Because why not. Why leave people running known-to-be-buggy code when > > our backporting processes are so well-functioning and lightweight? > > > > I'm not getting the objection? > > I thought we were so inconsistent on that that it ends up being a wasted > effort to even try taking care about stability of selfests in stable trees. Oh, I try to be vigilant about it. hp2:/usr/src/mm> git log tools/testing/selftests/mm | grep stable@|wc 44 89 1462 I pass selftests patches through the same brain algorithm as I do everything else, shrug.