From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D732DF4613C for ; Mon, 23 Mar 2026 21:36:09 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id F023A6B0088; Mon, 23 Mar 2026 17:36:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id EB2C26B0089; Mon, 23 Mar 2026 17:36:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DC8B06B008A; Mon, 23 Mar 2026 17:36:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id CAECB6B0088 for ; Mon, 23 Mar 2026 17:36:08 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 6BFA45CF91 for ; Mon, 23 Mar 2026 21:36:08 +0000 (UTC) X-FDA: 84578636016.09.B918664 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf25.hostedemail.com (Postfix) with ESMTP id C99B2A000E for ; Mon, 23 Mar 2026 21:36:06 +0000 (UTC) Authentication-Results: imf25.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=gNxb4JLn; spf=pass (imf25.hostedemail.com: domain of akpm@linux-foundation.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1774301766; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=QowRGUY/Rf5tXMlHmxXQjpsLCamtrKkANozJkRf1Ul0=; b=wHhGTpo30rZn+cj1anWqoXesheq920H+vSbnt03JiL44aon0nzXI1uZW1fX5Aeqj5JapRO Sp7Nlvbu8Mijo7BwAF1SeLfzckGws+TKBFfqNiTqt7V7/sPG8YamdgGzJh+loyq4+6UDbm R+IV9nGA73dVOPCvocGqV9sgEPLzepU= ARC-Authentication-Results: i=1; imf25.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=gNxb4JLn; spf=pass (imf25.hostedemail.com: domain of akpm@linux-foundation.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1774301766; a=rsa-sha256; cv=none; b=TOupJZPOJ12oXTFgc07p04R4+3zsdoyP2hWA8EbD4pGFzMxlJjhaLyenaWEY45E/WDHPUE aaPJijUpvwNj/UkDCMrVIpbv+H6/Wtf1Y/Q/GDVzSN/PGdX7OPRnmTsxrCmAeGiwdOw+zI li+Ki83G7aMoTIp+ln6ix0LrqY3t8pg= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 29B1F600AC; Mon, 23 Mar 2026 21:36:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4F5B6C4CEF7; Mon, 23 Mar 2026 21:36:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1774301765; bh=/Gb305a+Cn7PNqgbnF81KjVBMXAtfU7WzFxbKVQ11/E=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=gNxb4JLn80isFDbfugd94d0nRtAWVEmNAFitcwGRB+lvNChb2j1ogOowP5WcNvkCo 8C8o+yY44JdIVm8Sptsmd9nkCBb1DnugY1xNEt4EeQeu7KghVN62EHISTftzTpWx4n P+/JATelXIv+1Grehx9vPb8Uw+UBSNLTXVh9zlWw= Date: Mon, 23 Mar 2026 14:36:04 -0700 From: Andrew Morton To: Pedro Falcato Cc: "Lorenzo Stoakes (Oracle)" , Roman Gushchin , David Hildenbrand , Zi Yan , Baolin Wang , "Liam R . Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 0/9] mm/huge_memory: refactor zap_huge_pmd() Message-Id: <20260323143604.603b20aec4e3ab77cabec107@linux-foundation.org> In-Reply-To: References: <20260319200917.ce345a369d035050b6329ac5@linux-foundation.org> <87tsu9kgv3.fsf@linux.dev> <20260320203311.715ed75bcd84c18d24894324@linux-foundation.org> <20260321171530.8b3e8207f89d5a7384b9f01f@linux-foundation.org> <5cd57c69-7193-422f-b6b5-75bb5234e5f3@lucifer.local> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: C99B2A000E X-Stat-Signature: 1guoh3xpyzasxj9e361b5d6ee9b8egof X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1774301766-878647 X-HE-Meta: U2FsdGVkX18NUejh84+LpejqhYfjg36F1ZzGAXN6uHPdnfjqGUybxoNsN1Ws9aQiqKPcx654HljVXQ5aw3O58SliiLbnRK6ixBpb+163A6Lu7v9keWvhM7w+5G5MRFk0yNIw78lfD5YxuQQpgZo3TP54BZ1FbVmjD9ZA2iYSbYW+D4r1YJKyBO6fJkneh/kbYmGOtD/SHDJOxlL5H0L25eeH9K4cb7AFNe+7ony7a7Ui0xhlLDeTceF0XxWRmHtjc5b2b+2QzLz4SbARzouH1f+3lnU6ihjdoFDT18tCiICT66zOs1Qa69S9AsjJuoSRJU51Dw2xlrtHCkAezWBd0yoxw+8ddYL+u5bnLVNGl3yhXMOlWwyV1BSlOoRZ+VcOb3L+XNd2js/SEhPxN6s7mriMhbB+G0FaVOLCEFrh55MQZA6X7LKMgAlHQNAs98cvGt8FPwUj01xEU93eNJKZOr9D6L7c3ZBMzqvkcOvYavJvjdr3B0b7LEJm7u9t/NTRIi19SPQeliR1MOlB7nxgd+MIalFYzagVLHNaaaM9daytDeawY+P3hXEYV0f6Ic/RpGrR13t+gaS0YxMOw/jp7iaMqwMFmLw6l+BrfcVMLSw2iGR+Chqb3fB97Y6uLIK9Ibc1Kcwqd9aeFk8Zc+OJAgYI0wpzU5eLRHWC9q5VFZHCMjJ41GpWdBVSE4cfIZQlj4ot/OaxmzBntEtrr8yBBRLMc7g3O1u0CjgsWRXzMqRC4BMO6uKPRZE4t5lFjd16T9tS8GnGLMJ4VPH6fNtQpPe4kJ9SIFgY+GKhzVbQgH6/3jNDZ8uSCNgDk2XDpEuNFTEg8Mt8raQ0lPzYL+e+BU1dApNXawrcx8Wdp+jtYtOdLmU0sgugcQy/SjL37wroKy/SHJ0Bg1l3Zl46uQVRs1TCT2w9F4HXCnNDu9BZ7ZGlcTpuT0ALxv3Beq9ucjCjHIibYVdB09k2OsvRqeL AjGxRMx+ zMrNb Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 23 Mar 2026 12:34:31 +0000 Pedro Falcato wrote: > On Mon, Mar 23, 2026 at 11:31:29AM +0000, Lorenzo Stoakes (Oracle) wrote: > > On Sat, Mar 21, 2026 at 05:15:30PM -0700, Andrew Morton wrote: > > > On Fri, 20 Mar 2026 20:33:11 -0700 Andrew Morton wrote: > > > > > > > A lot of patchsets are "failed to apply". What is Sashiko trying to > > > > apply MM patches to? It would take some smarts to apply the v2 > > > > patchset when v1 is presently in mm.git? > > > > > > ? > > > > > > The way things are going at present, I'm just not going to apply a > > > > 50% noise vs. signal?... maybe wait until we're in the 9x'%s? > > > > > series which Sashiko "failed to apply". And that's cool, I'll just > > > wait for a version which Sashiko was able to apply. And then not > > > apply unless all Sashiko questions are resolved or convincingly refuted. > > > > Andrew, for crying out loud. Please don't do this. > > > > 2 of the 3 series I respan on Friday, working a 13 hour day to do so, don't > > apply to Sashiko, but do apply to the mm tree. > > > > I haven't the _faintest clue_ how we are supposed to factor a 3rd party > > experimental website applying or not applying series into our work?? > > > > And 'not apply unless all Sashiko questions are resolved or convincingly > > refuted.' is seriously concerning. > > FWIW I wholeheartedly agree. I don't understand how we don't require proper > M: or R: reviews on patches before merging I wish people would stop making this claim, without substantiation. I've looked (deeply) at the data, which is equally available to us all. Has anyone else? After weeding out a few special cases (especially DAMON) (this time also maple_tree), the amount of such unreviewed material which enters mm-stable and mainline is very very low. > Like, sure, sashiko can be useful, and is better than nothing. But unless > sashiko is better than the maintainers, it should be kept as optional. Rule #1 is, surely, "don't add bugs". This thing finds bugs. If its hit rate is 50% then that's plenty high enough to justify people spending time to go through and check its output. > Seriously, I can't wrap my head around the difference in treatment in > "human maintainers, experts in the code, aren't required to review a patch" Speaking of insulting. > vs "make the fscking AI happy or it's not going anywhere". It's almost > insulting. Look, I know people are busy. If checking these reports slows us down and we end up merging less code and less buggy code then that's a good tradeoff. Also, gimme a break. Like everyone else I'm still trying to wrap my head how best to incorporate this new tool into our development processes.