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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6BF0DC433EF for ; Sun, 28 Nov 2021 16:59:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346208AbhK1RDF (ORCPT ); Sun, 28 Nov 2021 12:03:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40384 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230078AbhK1RBD (ORCPT ); Sun, 28 Nov 2021 12:01:03 -0500 Received: from mail-ed1-x52c.google.com (mail-ed1-x52c.google.com [IPv6:2a00:1450:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F73BC06174A for ; Sun, 28 Nov 2021 08:57:47 -0800 (PST) Received: by mail-ed1-x52c.google.com with SMTP id y13so61584872edd.13 for ; Sun, 28 Nov 2021 08:57:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=soleen.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=hygTGueH+TpsmNvqO/xI0PfLf0AbmwXxiFK2b43VdDA=; b=UC3FsnutK3c+2D72zzm1AYYxj1fsYRNidiiWn1BPas2Z8CsWVcGovs77qZ9RDeb3Bo 2pQU4sSsZuuinuAf+whfjK1op1tkF6DMX8/zuxLHxZNTsdQMMqe7+K1wUvZe5a4NacSr fpWT4KQcyi1PoXODnom+kdKZPxvyP3XIGcOIsQ29lhNNfjJ2FLNZBOwzkWtVAKzVQfAZ QMCJNaUHKmiN8Hh4X57gnsXaJaeqB5qfP2y+DwRYvxt2BsDgpcBBq+5oIiX02OMjK2HD h/6XigX4xY/Z/BvXhIdMnPfss2JewLXq1xd0Oke9X8byYPEogcLuibZzjXx2HRsJxyvp 5byg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=hygTGueH+TpsmNvqO/xI0PfLf0AbmwXxiFK2b43VdDA=; b=LjLKV5vRoiAjTEqMHkNW3EtQa1wseAFBtTlZC+Rwt7K3Bm8mbbEudDNLj/tOk9M/lx j8JLesWWpKyQKwe1n50So+DG7rlBv1hORzW+3TVnb35pzcvolgvzMSf2dH/NTHkNbURg mN67xX1UYSN+1knU/hyEGvwfX7hdnzY8sztPdC5Ogk4H4MD0z4ANFEciFOJ//e5XP0yO XhK1q09nTx/N7FnEgOq/cqWnDHduHO3vyp3RGHzedxRsYwIT3sfhww3H5CDWjKn5MWfY N6+i/h9aXhrIgdN+R2qC4upiXQs0e3pP8Ig8yckyn/Zx+TyuDGWwiTpIOKWu/qQziq5Y Pluw== X-Gm-Message-State: AOAM532PNqWiTyzO2M93qnPMYVP/OObjzbElANIMy0/5tNS13sSrIfnw iAMMwi71SBo2XBiGd/Mggph8UScZydl3GA3LOzBhnA== X-Google-Smtp-Source: ABdhPJy270/OctF0embo/utcMpyGS+idrT99w1PP6Ttlhkvr7f8h2YIfCLyWiPBA/vd/opxEtFmZQxdXlVTeBMWcfFs= X-Received: by 2002:a17:907:94c7:: with SMTP id dn7mr9396435ejc.470.1638118666062; Sun, 28 Nov 2021 08:57:46 -0800 (PST) MIME-Version: 1.0 References: <20211123214814.3756047-1-pasha.tatashin@soleen.com> <20211123214814.3756047-3-pasha.tatashin@soleen.com> <6d82e674-76dc-f3b0-2e53-a92eeb249eff@gmail.com> <7d339956-27fb-4eb6-bd73-791807ddef56@gmail.com> <9e0014e8-e251-360c-ad82-334ad0f28303@gmail.com> In-Reply-To: <9e0014e8-e251-360c-ad82-334ad0f28303@gmail.com> From: Pasha Tatashin Date: Sun, 28 Nov 2021 11:57:10 -0500 Message-ID: Subject: Re: [PATCH 2/3] mm: page table check To: Fusion Future Cc: LKML , linux-mm , Linux Doc Mailing List , Andrew Morton , David Rientjes , Paul Turner , weixugc@google.com, Greg Thelen , Ingo Molnar , Jonathan Corbet , Will Deacon , Mike Rapoport , Kees Cook , Thomas Gleixner , Peter Zijlstra , masahiroy@kernel.org, Sami Tolvanen , Dave Hansen , "maintainer:X86 ARCHITECTURE" , frederic@kernel.org, "H. Peter Anvin" , "Aneesh Kumar K.V" Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Nov 28, 2021 at 11:54 AM Fusion Future wrote: > > > So it could be when memory consumption is over a certain percent, the bug will be triggered. > > Bisected and at the commit "[04ce8955fbe4d84376b92b875c42942489fcf3c5] > mm: page table check", the system still doesn't encounter any freezes. > So it's not this commit that introduces the bug. Sorry for bothering. This commit by itself would not cause the freeze or BUG_ON(), but the next commit which enables it on x86 arch might. Pasha