From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5419F606A326 for ; Tue, 27 Oct 2026 19:10:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=FmxWjFaE; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=JLRsA5zy DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Unsubscribe-Post: List-Owner; bh=gxw22+dUBVHsNmkwZBBvZhpzn7DjpEcijhpCagz+H44=; b=FmxWjFaEV0Da+l Dnz5/K1eLvS0iAqDKKxDB4sdmZemeUx6Hs2NhoVSxn/7rWHZNnOVEIlDZxk7QhoQqbr+BrBl/5MyY DgqZ6YSCuVi1GJa44AQapDuZ99vIO/qYy33z0pEKkzMbyQZNMzfVRdwhIyPBgwPt13W5L+fgNb87+ h94oPEj39cPA8hQfMdP95WfBzzh6hG5w3K1OVeTzwDi1ST/Od5nTy9h8GWNxRYEXowUvcJ00/6HWb c64QRf1Wof1vhFur0h8K4T9BbB41KXYjkJ8opHJfeoRvK+4dfY6rCfr8Ux92E9f3Ybt2IDLlEOgb5 B95n+E86Z4wCDJku7Yeg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xLmZP-00000005d24-0FfG; Tue, 27 Oct 2026 19:10:51 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xLmZN-00000005d1r-2dPy for kexec@lists.infradead.org; Tue, 27 Oct 2026 19:10:49 +0000 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-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "kexec" X-Spam-Status: No, score=-7.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=4.0.1 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