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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A95D4C433F5 for ; Mon, 1 Nov 2021 19:38:58 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4DEC761053 for ; Mon, 1 Nov 2021 19:38:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4DEC761053 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id AD8E7940024; Mon, 1 Nov 2021 15:38:57 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A887994000F; Mon, 1 Nov 2021 15:38:57 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 97775940024; Mon, 1 Nov 2021 15:38:57 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0220.hostedemail.com [216.40.44.220]) by kanga.kvack.org (Postfix) with ESMTP id 8519994000F for ; Mon, 1 Nov 2021 15:38:57 -0400 (EDT) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 3FDFA54A48 for ; Mon, 1 Nov 2021 19:38:57 +0000 (UTC) X-FDA: 78761374272.10.DD4C4CA Received: from mail-wr1-f44.google.com (mail-wr1-f44.google.com [209.85.221.44]) by imf20.hostedemail.com (Postfix) with ESMTP id 2A3F1D0000B9 for ; Mon, 1 Nov 2021 19:38:49 +0000 (UTC) Received: by mail-wr1-f44.google.com with SMTP id k7so29561789wrd.13 for ; Mon, 01 Nov 2021 12:38:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:from:date:message-id:subject:to:cc; bh=PCs1jWJejWVBSaYkuWpG5ZVx/T7dV/wdZJ2SEP85SX4=; b=FpgYjHT7o1pNGRzu3Qc0aFwsiElm7Ts1+yAJG2wmmMhbjzLqOV801W6IbTXXTYylAv ErEtrvwIEqyHxCHvT73NAzS++m7mw3oPKevaqXJW0IaplujbE0VgWyKGLkwnQuqZ+LtX ddBYe4mOy4ubuS4qnyN43AdCOJE8XOSuGTvusHQD/ep7uygEoZ50EiaJraA47iEiM2hn fzpuUDMShz6ybNsDlGv8Sa+EktA/59L63iLfDothpTHjd8bhIiU5GHrac5pC2+CoJZbK trxHAkCKtQaDxi3uQeaOX295eB/G1vWRba3yriGXiODXXCFOvESI2PFwOC5vKbRm7Ldf o8xw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc; bh=PCs1jWJejWVBSaYkuWpG5ZVx/T7dV/wdZJ2SEP85SX4=; b=2w2G07jznsZhY50sxdZ50C8OV9kn4/Raq79a9rJM8CkpVe3F6kMeoQ/8rWuWkAPyhx Mw48GjtdZ+K0fSz8HAgqqWZTc+mPCn+jRslN1C75D0u8EYbcQzFB/51aU0jeHD3B9Tzn WAUGJxYWq2gSoII1cym7eNS4dnf/Cguzvdr2Kcsh4REQEu/uqft5RDIaX55VCivKEwoM XNYVwdUraPoVecNa/IAUzcZ99lrZBhMru37qv7WolyvglP9whZh2o8eM9xAt+0/7IGm5 32/2UW58/+HkIELkI+TBAcT3QZLJF/aLov9Aq5beQNzrQqVCH3WVAqkbriixzb4Ryk+t Cblg== X-Gm-Message-State: AOAM530ZQFV1QavHoIiHkQDftMxEDX/XiCsGouQNaDXRPfqt1duwKSx4 so/vZn+Ty7htjwiR7eB6a4Bc8N6eisFsVg0hXF0o3w== X-Google-Smtp-Source: ABdhPJzhtfCcvGnSnGKM6geKfETQpI3m8wEuac7/VPjAmNe7rhBAdH+FLl8KDUTdNQWH08pKQHswvtUk8QU7SBmyaKo= X-Received: by 2002:a5d:65c7:: with SMTP id e7mr21182104wrw.319.1635795535496; Mon, 01 Nov 2021 12:38:55 -0700 (PDT) MIME-Version: 1.0 From: Jue Wang Date: Mon, 1 Nov 2021 12:38:44 -0700 Message-ID: Subject: Re: [v5 PATCH 6/6] mm: hwpoison: handle non-anonymous THP correctly To: Yang Shi , Hugh Dickins Cc: Andrew Morton , kirill.shutemov@linux.intel.com, linux-fsdevel@vger.kernel.org, LKML , Linux MM , =?UTF-8?B?SE9SSUdVQ0hJIE5BT1lBKOWggOWPoyDnm7TkuZ8p?= , Oscar Salvador , Peter Xu , Matthew Wilcox Content-Type: text/plain; charset="UTF-8" X-Stat-Signature: sg684q48u6dqso78w5in9ssxe1r757bq Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=FpgYjHT7; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf20.hostedemail.com: domain of juew@google.com designates 209.85.221.44 as permitted sender) smtp.mailfrom=juew@google.com X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 2A3F1D0000B9 X-HE-Tag: 1635795529-991905 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: A related bug but whose fix may belong to a separate series: split_huge_page fails when invoked concurrently on the same THP page. It's possible that multiple memory errors on the same THP get consumed by multiple threads and come down to split_huge_page path easily. Thanks, -Jue