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 6DBD1606A31A for ; Tue, 27 Oct 2026 19:10:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=JLRsA5zy Received: by kanga.kvack.org (Postfix) id 797C56B08B0; Tue, 27 Oct 2026 15:10:51 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 76F746B08B1; Tue, 27 Oct 2026 15:10:51 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 685146B08B2; Tue, 27 Oct 2026 15:10:51 -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 4656F6B08B0 for ; Tue, 27 Oct 2026 15:10:51 -0400 (EDT) Received: from smtpin18.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay05.hostedemail.com (Postfix) with ESMTP id D21A3409BA for ; Tue, 27 Oct 2026 19:10:50 +0000 (UTC) X-FDA: 85369348260.18.009C9A1 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf20.hostedemail.com (Postfix) with ESMTP id 156541C000C for ; Tue, 27 Oct 2026 19:10:48 +0000 (UTC) Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=JLRsA5zy; spf=pass (imf20.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=1793128249; 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=gxw22+dUBVHsNmkwZBBvZhpzn7DjpEcijhpCagz+H44=; b=PyvE9YepHJnBFVhxGnqtC2ESxr74WuIfnWCuqBvVRNj6C023B62tLRasUAyMFeCT6nLgkn A3agIhLLDHPa7X21g0jZqf1fkh3Zjg455eHqTju2UT2IIOSQDjdMF1sSzw2afVIyv9GVb8 yNb3O54ZE2uXoKqh48R2aTWBqh7Taco= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1793128249; b=EsWCXSCmAOtM7L6KboFCuGwEmInU94/eWBlBL7fhCIGp72H6pwlOCuV+HAfp0BygOvQ93F DOsSF4qvWc38OdWQSYdehTuIZC6bKtUMtRBADGxpWseD/2Y1eg6xPP13AAz20m3KEKUlOF +fklC2nuS945JLMWEADqZdVlwhe++n8= ARC-Authentication-Results: i=1; imf20.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=JLRsA5zy; spf=pass (imf20.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 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id A5BE46021D; Tue, 27 Oct 2026 19:10:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5DF241F01829; Tue, 27 Oct 2026 19:10:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793128248; bh=gxw22+dUBVHsNmkwZBBvZhpzn7DjpEcijhpCagz+H44=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=JLRsA5zy6lBMaJmnj1OuZDWK7USr/fw9H52uehWRrOa/1j8WudtcfkokPA36DPpQP S0rcY4Q/4pP+YF+byKiwleEgDfpZwaUDVDm4L7dPRJIfN292VDlcwOc90kWkBxY6b1 Mi8DZt6gPGhhyfK5+ZRUlwvd29AYr89em87D8L5KbOI1ZjOc3pnjoO99WUhQdMSkwB Kd8v2WIYlELKJVpxwWEEssNQoRGjucCE81+gjs5//M4+n2M/ral1GW4g4bdGx/h0lV 9ntzmhQGFkbsCzUTDYBHkrEOBWleeXSGrd95OomWvfwcKf7/2yVImSsxRlxqZR1HRK AiDKFUxA3cIPA== Message-ID: <3d5e6a17-3ca5-4e87-baab-f349073ab8e4@kernel.org> Date: Tue, 27 Oct 2026 20:10:27 +0100 X-Archived-By: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 06/46] mm/filemap: read mapping->a_ops->free_folio under i_lock To: Rik van Riel , Andrew Morton , Johannes Weiner , Michal Hocko , Qi Zheng , Shakeel Butt , Lorenzo Stoakes , Kairui Song , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu , Baoquan He , Baolin Wang , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Kees Cook , Peter Zijlstra , Jann Horn , Pedro Falcato , Hugh Dickins , Pasha Tatashin , Pratyush Yadav , "Matthew Wilcox (Oracle)" , Jan Kara , Zi Yan , Lance Yang , Harry Yoo , Alistair Popple , Nico Pache , Ryan Roberts , Dev Jain , Usama Arif , Kiryl Shutsemau , Matthew Brost , John Hubbard , Peter Xu , Will Deacon , "Aneesh Kumar K.V" , Nick Piggin , Oscar Salvador , Minchan Kim , Muchun Song , Xu Xin , Chengming Zhou , Chris Li , Kemeng Shi , Nhat Pham , Youngjun Park , Gregory Price , Joshua Hahn , Rakie Kim , Ying Huang , Jason Gunthorpe Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, linux-cxl@vger.kernel.org, Josef Bacik , stable@vger.kernel.org References: <20261027-fixes_core-v1-0-6f74bec9a5bb@kernel.org> <20261027-fixes_core-v1-6-6f74bec9a5bb@kernel.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 156541C000C X-Stat-Signature: gycgjr9p3wtt5xfrjnn5n6ji4ufmi7gr X-Rspam-User: X-Spam-Status: No, score=-7.6 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,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=4.0.1 X-HE-Tag: 1793128248-215658 X-HE-Meta: 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 I0QaN4EA aVnomz3MtPjJLkqA7HP4VshrX2W0zpdIThx3rW+8pDPVLiMnGX7KyOENCza4+mO9ysukTHTdPHKje5CDnLyuMCLIh4Wsaj+G1mdjkdYy7TVSdracYLQe6iehJnr3xzTE8vlQTPAdkQ299L6YN3hloK4xJ78Fhv4jBoveh0RxZlr+521/dTi4v1kOouY1GXfP1zI7Ezj1LUV5l2D8LxjlEM8SpFkKPi0mA6wfwB3FcXsdw23HgKIItHWNmc/YCf3pJvT8S2dNwzUFJLp5Y2nA+9A4PI2uoOXU//4mh+ckanjtjUXgQHeD2sXbSAUg76xnNwIegepKKgCSpf1c9muSFHNDNyEdDngDPKVcC/NWL4ss8o1bNfh8xnvVZ8bk8VAS2TS4sDpNls/Zsktt8IdBlZgQtw/PaBYrS+qu+q8DSHCTLc9v/OgBAkJfhbo32NGKwmlKM2osP/6Imk/3vfk1HJV6nUA== 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 10/27/26 03:43, Rik van Riel wrote: > On Tue, 2026-10-27 at 00:17 +0100, David Hildenbrand (Arm) wrote: >> From: Josef Bacik >> >> The bug was found by code inspection and has not been reproduced. >> > I can't say I'm surprised ;) > > I see clues that a most bunch of these issues > occasionally happen in our (rather large) fleet,  > but not this one. IIRC it's mostly memory_failure() only that can trigger this today ... so not surprised :) -- Cheers, David