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 BD525C88E5C for ; Wed, 16 Sep 2026 06:44:46 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 5F9546B00A5; Wed, 16 Sep 2026 02:44:43 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5A9866B00A9; Wed, 16 Sep 2026 02:44:43 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3FC2F6B00A7; Wed, 16 Sep 2026 02:44:43 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id EF6CD6B00A5 for ; Wed, 16 Sep 2026 02:44:42 -0400 (EDT) Received: from smtpin27.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 6D7E640608 for ; Wed, 16 Sep 2026 06:44:42 +0000 (UTC) X-FDA: 85218687204.27.BD659B4 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf19.hostedemail.com (Postfix) with ESMTP id AA4EE1A0007 for ; Wed, 16 Sep 2026 06:44:40 +0000 (UTC) Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b="P/iScPFn"; spf=pass (imf19.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1789541080; 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=TSC8m1uvKADe4izgOf34VC22kIw4m7aB4yU4DXkfMIQ=; b=mzLDqvS+PIQDjCBBV8jPZMd7xL6903xLMRawVaII7kFxdTUr/KmIbXM0GHoql7dnUaai4U yRA4gtf9PpwAAEsnv7+qR6YcYWCUmG3/lXSiRaY9fhek2zakoFODqXu+q5drECuwzPKIjP uiPWtPBsyw0GcYpSOlYP7phJt87utBI= ARC-Authentication-Results: i=1; imf19.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b="P/iScPFn"; spf=pass (imf19.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1789541080; b=GERwV8fD7ASXiy6xFV0XSeoA2oLdyqt956RINkZR6voSXLw7sO8twBCoBxx3zgeOiNt4uH vvWq5vQN9fiLScw8fgBrMc2+BTbpHDu3S54J2StmD2KneudN7UrTKy9n9SIet0HQzKi53V slyXAINMYfNkvlptMrSvrSWsGLtmz28= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 2300960233; Wed, 16 Sep 2026 06:44:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C982D1F000FF; Wed, 16 Sep 2026 06:44:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789541079; bh=TSC8m1uvKADe4izgOf34VC22kIw4m7aB4yU4DXkfMIQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=P/iScPFnM5QU1sYRRLc2FNGZUw6F/lcEZYGse0SpiTAH100wnTOStLTNR0mbiMUMy LTlFwL2yNXOKJEGfmq+8g8y4YjoeY48KN7pFPCDHdX3vu/vLeaKeP6f4pegr2KWtUd t530FRLGn44//3uYVozTWBv5nVqFY8pWeGpSpJC43U85OQbgdUrnLV28tOYBHKGwyo C5Pvn2OOZcS3GqdvhyI27yhiwci1cZTxNAq/v6BPm0tgLTmsLkklq19fqTADqSBAFE EQkRJaniEWsQG4Pw91NETf0FGkJUYeDJZQY0DffEMIG5y+lpVFgCbTRkMghbZo8Hjj Bcb0dhcpGhefw== Message-ID: Date: Wed, 16 Sep 2026 08:44:30 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 6/9] mm/memory-failure: efi: answer whether a range is poisoned To: sashiko-reviews@lists.linux.dev, Andrew Morton , hannes@cmpxchg.or, Borislav Petkov , Danilo Krummrich , Brendan Jackman , x86@kernel.org, kas@kernel.org, Suren Baghdasaryan , Zi Yan , "Liam R. Howlett" , Vlastimil Babka , Thomas Gleixner , Oscar Salvador , "Rafael J. Wysocki" , shakeel.butt@linux.dev, Johannes Weiner , Ilias Apalodimas , Miaohe Lin , Ard Biesheuvel , Breno Leitao , Michal Hocko , Naoya Horiguchi , Greg Kroah-Hartman , Mike Rapoport , "H. Peter Anvin" , Lorenzo Stoakes , Dave Hansen , Ingo Molnar Cc: linux-mm@kvack.org, kexec@lists.infradead.org, linux-cxl@vger.kernel.org, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, harry@kernel.org, rmikey@meta.com, kernel-team@meta.com, driver-core@lists.linux.dev, riel@surriel.com References: <20260915-hwpoison-kho-v5-0-3bc7a57bd503@debian.org> <20260915-hwpoison-kho-v5-6-3bc7a57bd503@debian.org> <20260915134535.C3FC91F00899@smtp.kernel.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzS5EYXZpZCBIaWxk ZW5icmFuZCAoQ3VycmVudCkgPGRhdmlkQGtlcm5lbC5vcmc+wsGQBBMBCAA6AhsDBQkmWAik AgsJBBUKCQgCFgICHgUCF4AWIQQb2cqtc1xMOkYN/MpN3hD3AP+DWgUCaYJt/AIZAQAKCRBN 3hD3AP+DWriiD/9BLGEKG+N8L2AXhikJg6YmXom9ytRwPqDgpHpVg2xdhopoWdMRXjzOrIKD g4LSnFaKneQD0hZhoArEeamG5tyo32xoRsPwkbpIzL0OKSZ8G6mVbFGpjmyDLQCAxteXCLXz ZI0VbsuJKelYnKcXWOIndOrNRvE5eoOfTt2XfBnAapxMYY2IsV+qaUXlO63GgfIOg8RBaj7x 3NxkI3rV0SHhI4GU9K6jCvGghxeS1QX6L/XI9mfAYaIwGy5B68kF26piAVYv/QZDEVIpo3t7 /fjSpxKT8plJH6rhhR0epy8dWRHk3qT5tk2P85twasdloWtkMZ7FsCJRKWscm1BLpsDn6EQ4 jeMHECiY9kGKKi8dQpv3FRyo2QApZ49NNDbwcR0ZndK0XFo15iH708H5Qja/8TuXCwnPWAcJ DQoNIDFyaxe26Rx3ZwUkRALa3iPcVjE0//TrQ4KnFf+lMBSrS33xDDBfevW9+Dk6IISmDH1R HFq2jpkN+FX/PE8eVhV68B2DsAPZ5rUwyCKUXPTJ/irrCCmAAb5Jpv11S7hUSpqtM/6oVESC 3z/7CzrVtRODzLtNgV4r5EI+wAv/3PgJLlMwgJM90Fb3CB2IgbxhjvmB1WNdvXACVydx55V7 LPPKodSTF29rlnQAf9HLgCphuuSrrPn5VQDaYZl4N/7zc2wcWM7BTQRVy5+RARAA59fefSDR 9nMGCb9LbMX+TFAoIQo/wgP5XPyzLYakO+94GrgfZjfhdaxPXMsl2+o8jhp/hlIzG56taNdt VZtPp3ih1AgbR8rHgXw1xwOpuAd5lE1qNd54ndHuADO9a9A0vPimIes78Hi1/yy+ZEEvRkHk /kDa6F3AtTc1m4rbbOk2fiKzzsE9YXweFjQvl9p+AMw6qd/iC4lUk9g0+FQXNdRs+o4o6Qvy iOQJfGQ4UcBuOy1IrkJrd8qq5jet1fcM2j4QvsW8CLDWZS1L7kZ5gT5EycMKxUWb8LuRjxzZ 3QY1aQH2kkzn6acigU3HLtgFyV1gBNV44ehjgvJpRY2cC8VhanTx0dZ9mj1YKIky5N+C0f21 zvntBqcxV0+3p8MrxRRcgEtDZNav+xAoT3G0W4SahAaUTWXpsZoOecwtxi74CyneQNPTDjNg azHmvpdBVEfj7k3p4dmJp5i0U66Onmf6mMFpArvBRSMOKU9DlAzMi4IvhiNWjKVaIE2Se9BY FdKVAJaZq85P2y20ZBd08ILnKcj7XKZkLU5FkoA0udEBvQ0f9QLNyyy3DZMCQWcwRuj1m73D sq8DEFBdZ5eEkj1dCyx+t/ga6x2rHyc8Sl86oK1tvAkwBNsfKou3v+jP/l14a7DGBvrmlYjO 59o3t6inu6H7pt7OL6u6BQj7DoMAEQEAAcLBfAQYAQgAJgIbDBYhBBvZyq1zXEw6Rg38yk3e EPcA/4NaBQJonNqrBQkmWAihAAoJEE3eEPcA/4NaKtMQALAJ8PzprBEXbXcEXwDKQu+P/vts IfUb1UNMfMV76BicGa5NCZnJNQASDP/+bFg6O3gx5NbhHHPeaWz/VxlOmYHokHodOvtL0WCC 8A5PEP8tOk6029Z+J+xUcMrJClNVFpzVvOpb1lCbhjwAV465Hy+NUSbbUiRxdzNQtLtgZzOV Zw7jxUCs4UUZLQTCuBpFgb15bBxYZ/BL9MbzxPxvfUQIPbnzQMcqtpUs21CMK2PdfCh5c4gS sDci6D5/ZIBw94UQWmGpM/O1ilGXde2ZzzGYl64glmccD8e87OnEgKnH3FbnJnT4iJchtSvx yJNi1+t0+qDti4m88+/9IuPqCKb6Stl+s2dnLtJNrjXBGJtsQG/sRpqsJz5x1/2nPJSRMsx9 5YfqbdrJSOFXDzZ8/r82HgQEtUvlSXNaXCa95ez0UkOG7+bDm2b3s0XahBQeLVCH0mw3RAQg r7xDAYKIrAwfHHmMTnBQDPJwVqxJjVNr7yBic4yfzVWGCGNE4DnOW0vcIeoyhy9vnIa3w1uZ 3iyY2Nsd7JxfKu1PRhCGwXzRw5TlfEsoRI7V9A8isUCoqE2Dzh3FvYHVeX4Us+bRL/oqareJ CIFqgYMyvHj7Q06kTKmauOe4Nf0l0qEkIuIzfoLJ3qr5UyXc2hLtWyT9Ir+lYlX9efqh7mOY qIws/H2t In-Reply-To: <20260915134535.C3FC91F00899@smtp.kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Stat-Signature: iqwrmd1sgkt97iabpuuzmdx9zpfep88q X-Rspamd-Queue-Id: AA4EE1A0007 X-Rspamd-Server: rspam07 X-HE-Tag: 1789541080-450793 X-HE-Meta: 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 RkvMRJZi U1JegbEhWjYyjscTNRwPvjmo5XYUH2ranyET2Hs1rvfyLSYhKQ5Lu7I6jmzUM5TtCDpQGdR2D/sQuzLkGKkxsL3+n4RgfWn/H5RAr4pYPJCtFn/1lRMJoLD0aIxi8I5OWS/3/o879L+89Tc+i6DFJhgcea+FAUvTe6JVnN7ncIx8iGxMRpBwVfHRPah1IhOVJnA0I/cK4eJIqE6GavtQF53zSUzSSWY4UlRlO8WbVijaVYSRki6YdmMIaV/1xQ1cGA0Pu5DCi9km+tDOhW8qt5Z+toArK388NEDZcIUFh6aMWxzwc24Zvh5gWSmjswcZ/mCwv7LX8MTT5IlsH2lTUW3/VcD4gGCvsDUiYOzVt9Gn/UxMeWwA+jPcUUEul37qhfKA6 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 9/15/26 15:45, sashiko-bot@kernel.org wrote: >> The bitmap an earlier kernel filled in gets in this one through EFI, >> but nothing reads it back yet. >> >> Introduce range_contains_poisoned_memory(), which the page allocator >> will use to ask about a block before handing it out. >> >> Signed-off-by: Breno Leitao > > Sashiko has reviewed this patch and found no issues. It looks great! > David has reviewed this mail and it annoyed him. -- Cheers, David