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 X-Spam-Level: X-Spam-Status: No, score=-16.4 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5073CC388F9 for ; Wed, 11 Nov 2020 13:40:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D95102074B for ; Wed, 11 Nov 2020 13:40:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="lwyBQi1s" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727160AbgKKNkO (ORCPT ); Wed, 11 Nov 2020 08:40:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54890 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727149AbgKKNjq (ORCPT ); Wed, 11 Nov 2020 08:39:46 -0500 Received: from mail-qk1-x744.google.com (mail-qk1-x744.google.com [IPv6:2607:f8b0:4864:20::744]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89167C0613D1 for ; Wed, 11 Nov 2020 05:39:46 -0800 (PST) Received: by mail-qk1-x744.google.com with SMTP id q22so1615155qkq.6 for ; Wed, 11 Nov 2020 05:39:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=GumszjvNgwjE3QKLoLF59KpeottKAMj7F7aMgIrJUxg=; b=lwyBQi1sL1I1G2apxji33UOsDH8SrudX+R4TP1pKfKhP3QApOTvsMu30Qb/Z5fAoND lvSl2/NQusY+FObx0QzCF/s7HUA6Lm2oIsCTvPbaV2VZOUrf1Tj1jnVV9Uc7mwo2ytdU vpNcdc4b8QAL0nlzIcZE68BhgCDIjN0KAdkhusZe+mbXcZAkxeBDEiAS23iAQ9BrrjZG cQ5t0wG8PUTeVeVerwNBzsasCuNSLHiG7JbXNHzsbODTBhV2Uuf9sQzPp6RiGoFt63Na ATN7CVtb94E+FWX3LK4vYF+7xmm9nBE2IoxI0vP5uploK7yxqzYlIpbUOL0EEYfsYi3M 8Bbg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=GumszjvNgwjE3QKLoLF59KpeottKAMj7F7aMgIrJUxg=; b=tm7WzYnAUmE+lWvNvIYlBHYULgye2tKWbwZb6YLAo4Ia7qo+gU+VYNDeIkLRgr55Gm Hkg9REKDBriODSO7RzQDZ2HoZXamjt3quio/r0+Ast4LhoTBnneILm7e04WO9i3OxDoR L3HEsBI+9LcUtQQeKPCZFaePX5jZ2qlEy9pk8I/pKKz5o1vvgdw6Mk3pPSE+znpFiA6M JfipawsYW4DU8zey+w07RuwkDCQW5icueXdBF/t+smdEG3IlkaY3vP4Bkg6OjrxMuaT1 2hNvcsdkynDUhwjJexjhM8WugCIjljkAW3Q4uIwDyY3RZnndh7MFaW9KyEqWJ7V9XPrF D7Uw== X-Gm-Message-State: AOAM533APPeHXuuDEdQddh0MB+OZvhV/I9H45/QNYBUTJ2scAaTrSPCJ 5FNNVlnh34jltVtqCqgG/jcWX6FPdEjcozdqZWS0PQ== X-Google-Smtp-Source: ABdhPJxSvk9O1KTGx9oqKR3aacKcjj2UL47whviuE1wpq8K3iTsLrqG9WhSVlPsGPSclNiX2vBY32qT2WBH6AlD6hyQ= X-Received: by 2002:a37:9747:: with SMTP id z68mr24031626qkd.424.1605101985587; Wed, 11 Nov 2020 05:39:45 -0800 (PST) MIME-Version: 1.0 References: <0000000000005b2aad058e722bf3@google.com> <00000000000043f47d0596c26e68@google.com> In-Reply-To: <00000000000043f47d0596c26e68@google.com> From: Dmitry Vyukov Date: Wed, 11 Nov 2020 14:39:34 +0100 Message-ID: Subject: Re: INFO: rcu detected stall in do_swap_page To: syzbot , syzkaller-bugs , LKML Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 7, 2019 at 3:25 PM syzbot wrote: > > syzbot suspects this bug was fixed by commit: > > commit 32aaf0553df99cc4314f6e9f43216cd83afc6c20 > Author: Pengfei Li > Date: Mon Sep 23 22:36:58 2019 +0000 > > mm/compaction.c: remove unnecessary zone parameter in > isolate_migratepages() > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=159dcaaae00000 > start commit: c6dd78fc Merge branch 'x86-urgent-for-linus' of git://git... > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=3c8985c08e1f9727 > dashboard link: https://syzkaller.appspot.com/bug?extid=2a89b1fb6539ff150c16 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1456f9d0600000 > > If the result looks correct, please mark the bug fixed by replying with: > > #syz fix: mm/compaction.c: remove unnecessary zone parameter in > isolate_migratepages() > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection This does not look like the right commit. The bug happened only twice long time ago, so: #syz invalid