From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.subspace.kernel.org (Postfix) with ESMTP id DA10A606A32A for ; Thu, 12 Nov 2026 11:06:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=CgL6tMTt Received: by kanga.kvack.org (Postfix) id 0D4736B05BB; Thu, 12 Nov 2026 06:06:54 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 0856E6B05BC; Thu, 12 Nov 2026 06:06:54 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EDD5B6B05BD; Thu, 12 Nov 2026 06:06:53 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id CF6D16B05BB for ; Thu, 12 Nov 2026 06:06:53 -0500 (EST) Received: from smtpin18.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 75D101C3D3B for ; Thu, 12 Nov 2026 11:06:53 +0000 (UTC) X-FDA: 85426189506.18.8EA8BF1 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf17.hostedemail.com (Postfix) with ESMTP id D204F40009 for ; Thu, 12 Nov 2026 11:06:51 +0000 (UTC) Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=CgL6tMTt; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf17.hostedemail.com: domain of ljs@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=ljs@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1794481612; 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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=vSq1qT4UA/SFFJR/GJu5ROIhm9ZxkHbbkGrHiDg+96o=; b=tMSLbL266rApKpEvzjzI3mOiVoif4kXheIxe4zrxm0x3e1SKWAasFtLaGpGo4r5J4+92yv atTX+zrwhi/jOQ6uqUxmPgEjoznQsfIqazl4azFdwN23qcbPA38eOSUitB1PPQdv+0uOj4 P/E6hgI+Sjx3W8NNjJ1QaP5FwXx87jg= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1794481612; b=B3BiWjJx6XMDjjogvBf9nJItaWSlRex4D6GepQVJ3fh6k+SureQghKNu+PJ/+mTyeWXDqb gJsCtLCzcP7koOClwxq27uD+8CaIG28nV3GaCxmHR54dEgvFOmLAY0Y5HZlIP29D3kxs/j aewUFxor6Ce8FGAid92G5m0KnF9Poc4= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=CgL6tMTt; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf17.hostedemail.com: domain of ljs@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=ljs@kernel.org Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 4BE8D44DDA; Thu, 12 Nov 2026 11:06:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 007A81F00A05; Thu, 12 Nov 2026 11:06:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794481610; bh=vSq1qT4UA/SFFJR/GJu5ROIhm9ZxkHbbkGrHiDg+96o=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=CgL6tMTtg/S8q8yyQ/zzYtg9kJGnRqNf4TdTF0m8ZeWqRXWL2/Oi+iirLh3VdN7KX /0rI4Xhikgv+80DYB8hHzH+HE7Xd9l/cKADhJoww7yeq2yT0f8VkH7WvzEaS01VtF0 0/yy+UxDZIbqt1F516bbUZckJ69oh7MkXOYItH/jk6t+E+yJ3BOZlGS0lSAubIMpYk YpVBtER2Ihm5gyMIDsO72fULol91zd9fILGJjGhutuKzecoleh+Rg2ePnBFDYcI6OQ aDRCDVlVxM9EnkeradPkM0L/mqk6J/1bSht5CcFMsbZPb3GgmQ4bFfavYVN9z5mRQM eixxs/EhIbtRQ== Date: Thu, 12 Nov 2026 11:06:38 +0000 From: "Lorenzo Stoakes (ARM)" To: Tal Zussman Cc: Andrew Morton , Mike Rapoport , Peter Xu , James Houghton , Andrea Arcangeli , Suren Baghdasaryan , Balbir Singh , "Liam R. Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , =?utf-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= , Andrei Vagin , Stephen Rothwell , Arnd Bergmann , Muhammad Usama Anjum , David Hildenbrand , Zi Yan , Matthew Brost , Joshua Hahn , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Baolin Wang , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Usama Arif , Kiryl Shutsemau , Chris Down , Muchun Song , Oscar Salvador , =?utf-8?Q?Miko=C5=82aj?= Lenczewski , Michal Hocko , Mike Kravetz , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH 11/12] mm/madvise: send UFFD_EVENT_REMOVE when installing guard regions Message-ID: References: <20261111-uffd-state-fixes-v1-0-00713d368976@columbia.edu> <20261111-uffd-state-fixes-v1-11-00713d368976@columbia.edu> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Stat-Signature: naxnxqbgncwjqfkhhwg58swtdy45iatj X-Rspam-User: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: D204F40009 X-HE-Tag: 1794481611-738521 X-HE-Meta: U2FsdGVkX19VdhPT5ypfg+080w2u8l7SprUGAHTI812q/DzPs1UDVcAAH0803iLxSXyG7dLAcwhXOzsAxgcFuqT9NZVrViUYtDhHJfNP6rIGzITdFQ9XLGjHPbtVet1zrkRIPTmuiymhWKC8tEHrYLctep6+CUAxi+1qM0fClclDHsHeAZoFlfbqK47WzbtJ65T2TEGOdQVIfK1uVT9hBZ+C799jfzvu/dPyuA05k3HpGZlVZWMGsoTSnWnnOApG3DtT9u0kklWWVneguBzEJjW/JAJUFkkthWzLqZqp4L4KpoWqk7QKVN+8+7ElZXfE3SQVvkpO0o8sH5I0tSvIeVh1fWUzOKh1yCPOGKgQhUhm6jvWdLjfSnWWdjBYWuOjCQ8K8fZjuZrn74WvSCJKvCMOYut09RJNpsbqcmQx9fvWyQRv3f3YHrjN2RIzVeeev4QU9d5+DlI1NtbrMK/sREopyusOHBn7V+RnQFt1v+ARTWk3WBTgDWSoIlPPCEF6oFxJKkXtMqyb/uT7xvyfsOZT1BoofRUUCDjey5WeYr3QCmLQLsIcrXoOjaGbf4hvGVuWo9yetswqla2MeMIIb2mVnefUQomVeFOMs1667xZCqmTWEf2CB5TJPcionrsPKVpHGOpGTM79ltkMt3kCiUgSNdfZ5XskleUpnhS990QqBhhPKYmCDWmVF4/c0O6aT0CHp+3iV87Zs3+Zo5hTrzTTn3U70w72O9kNQYXi53rTVEhyABdpVCxgXzh+wLjQLFDZMMBrRT35pbnDUACLbNn1jsjn4WEhGr+/sVSbzBZcLDW7gKQuLPMJipv1w0YsyWHCHbw8zbe4VexNOmRcd2pTYSS/hWzTyf0bfncRpyLRTWkJv2Wc2G33/iHoGYKJSMFDNyPXDtCK/jNlYsAwcazBP9VXUG3IsUv0COwtVDP0OG+iiL0Xq/FNoxEbmoT5w6zkf3sY6jlMBzOJ/1t hGHxNQqI tQYL0qf+jaacfqGjg2qc4sRjpxdqCUZWndtEZf0zH+ZU2RIswDSci4dd1NuYIuTgpKSpkfjlSHlnblr57Ape4RoffskpP35MKhxOpE4J92nQ4eJmuxa4dD+jXzlCXOJriwJPR1BYE0wVpPlsM0tISOVNsXOhvO9ecuKH8u2aArruS91nZom+TDGZhcKMTdTJmN0DL6zFpN+g50SEb5L710zoNHj1NbXJ4hx/sypIKSF5EMRT1BvC/j1Rsmd5I/l8M7ypaNh+CqR/1XiWCb81PHUvbxC+PTE5CGAOrRhwO/eA17pEvb7OpdPmp1U+QyFGEeUs6WeEFpcdhlZG/lbzrRhQvmrmxsEYpGndmKRtF48JgmGEGtlNh9h77NA4OkImTuKFW1eHITktpXrZKVzkrS096gybEJ3kaSFHUdXepYIMjDLI= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Thu, Nov 12, 2026 at 11:03:29AM +0000, Lorenzo Stoakes (ARM) wrote: > > Fixes: 662df3e5c376 ("mm: madvise: implement lightweight guard page mechanism") > > Closes: https://lore.kernel.org/linux-mm/3f4b0d1b.bbf84.1a1c55cb666.Coremail.18670333770@163.com/ > > This report was super-synthetic AI slop > Oops, let me finish this thought... it was super-synthetic AI slop to the point that I am not sure it's even worth referencing. -- Cheers, Lorenzo