Received: by 2002:a25:ad19:0:0:0:0:0 with SMTP id y25csp4019378ybi; Fri, 5 Jul 2019 19:42:26 -0700 (PDT) X-Google-Smtp-Source: APXvYqzDIfRfBBa0BIQwj1IH9Hwb1jULG0RwYRGYdY+RAdfoabkaRn8P/g6wbcGH0NcHb2re/49O X-Received: by 2002:a63:3d09:: with SMTP id k9mr8660038pga.321.1562380946199; Fri, 05 Jul 2019 19:42:26 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1562380946; cv=none; d=google.com; s=arc-20160816; b=He6bVai+wpOEpVqRoWC0AzUsghbE9rxbRMSbsM1Rj8lxXDlHYRWtSc2efkan7w7IDE 1oBx8ElY+YGFN2PPHfoOsfFqgAuWY30rUVDR7VCzoT92tLg8NwnuWhm4bE08Kz8tUPfm OB09ginMCnXN2RkFJEGr0jSXdXhoGE77El6cPteyFI3ZA6e5zpxVLXrvPS+sbqZgwHn9 JfmmGOwkSUknosxIwVPPeQwuvkEaIF8HaogTOHSlZUQdgTdS3qGv78Nk401eTai6shv7 aquNe1YSpf3rm/PmO5MMyT/V8EoonU1ns/gPICzeCCE1MyVdSW+rB41nPkZht04fp+k5 tHUg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:dkim-signature; bh=fd4Y87tY8rXvKyCsNSuOPm1j51lFjgKYC9nK5pdmnzI=; b=mDqzMzfvHdbTm9IPmSYQLWN4gHHj+veEBCVx4C1LA5nGcfTe0iTqdPOdd5ixyssYJy TxkALamWt2Cq7pi054AfKYNz57CvGO/BqYkvWyNNZr2R9+5shTYGJeuxT3NYGAA6JJNV wgW5FPGi+5kZgDBrgvHrYhQNX5a9acF4bIY1MRf6Rh3IOjoSLd6Sw6e7AlMGyiUFb/XY LDBsZ7/YzP4iEFiTXSLw1pn43wvYmWZBlRchjX8jfzFzdRkiPpMVsXNan8GujeDY768b di9U9FPFcNykTxiPO6DGh80OzqmRavJ9nSgWXkZ0qibJUydDKhrIyMUBO5Z/zsQtYFyO v1/g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linux-foundation.org header.s=google header.b="YUs/UgR/"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id j12si9555681plk.272.2019.07.05.19.42.09; Fri, 05 Jul 2019 19:42:26 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@linux-foundation.org header.s=google header.b="YUs/UgR/"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726585AbfGFCkA (ORCPT + 99 others); Fri, 5 Jul 2019 22:40:00 -0400 Received: from mail-lj1-f177.google.com ([209.85.208.177]:40969 "EHLO mail-lj1-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725813AbfGFCj7 (ORCPT ); Fri, 5 Jul 2019 22:39:59 -0400 Received: by mail-lj1-f177.google.com with SMTP id d24so1747609ljg.8 for ; Fri, 05 Jul 2019 19:39:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=fd4Y87tY8rXvKyCsNSuOPm1j51lFjgKYC9nK5pdmnzI=; b=YUs/UgR/8Hp7wwsb7zpTWwyIpunZ8Ebmdz6mmomdXNFvrtT0rRerwLe2HTG10s2mHE lmdb6ncApNQ00nd78WB80+xcJxIJpf6hoJTJX8vUIjCCV8E+4N5q+5IkIJ6NvUbWosRq Wdf/Rw9vCEZYTXwhGdCGNqUuAlzpv1DIpsCBo= 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:cc; bh=fd4Y87tY8rXvKyCsNSuOPm1j51lFjgKYC9nK5pdmnzI=; b=PhiO4vGE2M8P4jOFrXjAQhfhX8cCI5i+F5+mYF+Zom7zTO8C21BYk9vsTVHABA3wtC Gq+PXThxyz4duxIAo9HrHLBpl5DLMNb36GGCzStlFlA6OZkqVLuR+HgrRfFSuiTZhTRk 4ODgs+f12Paoy+xCIR7Tox+bdlGSd0DK1SD6R0wKsx/TUeNDJCEKi+ZoToiAZuummhVh iT07AUcFAbXqTaEjBwOC1131X8/HV8fMP0ZLyzLM1ARMYUEwgE3AjQkolNy/BvxKmzBN QL1oKdn6e7jWlUmC0ncmJYlPoyc5KUpMaRc43beK75zR6tITXGSQ0wadTRlhqxqE6I5a XutQ== X-Gm-Message-State: APjAAAVgMNLc6Q3NsurX4IaGh1sILlnkQTpBXih7iNCwpiwd8ehVT7Ke aLV4B6BawWbVVuOQ+JayGkucYELl0uViJw== X-Received: by 2002:a2e:b60f:: with SMTP id r15mr1894813ljn.172.1562380797203; Fri, 05 Jul 2019 19:39:57 -0700 (PDT) Received: from mail-lf1-f51.google.com (mail-lf1-f51.google.com. [209.85.167.51]) by smtp.gmail.com with ESMTPSA id p5sm2116165ljb.91.2019.07.05.19.39.55 for (version=TLS1_3 cipher=AEAD-AES128-GCM-SHA256 bits=128/128); Fri, 05 Jul 2019 19:39:55 -0700 (PDT) Received: by mail-lf1-f51.google.com with SMTP id v85so4462663lfa.6 for ; Fri, 05 Jul 2019 19:39:55 -0700 (PDT) X-Received: by 2002:ac2:4565:: with SMTP id k5mr3364080lfm.170.1562380795305; Fri, 05 Jul 2019 19:39:55 -0700 (PDT) MIME-Version: 1.0 References: <20190529180931.GI18589@dhcp22.suse.cz> <20190705230312.GB6485@quack2.suse.cz> In-Reply-To: <20190705230312.GB6485@quack2.suse.cz> From: Linus Torvalds Date: Fri, 5 Jul 2019 19:39:39 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: kernel BUG at mm/swap_state.c:170! To: Jan Kara Cc: Mikhail Gavrilov , Vlastimil Babka , Michal Hocko , Linux List Kernel Mailing , Linux-MM , Matthew Wilcox , Qian Cai , "Kirill A . Shutemov" , songliubraving@fb.com, william.kucharski@oracle.com, Andrew Morton , Greg Kroah-Hartman Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 5, 2019 at 4:03 PM Jan Kara wrote: > > Yeah, I guess revert of 5fd4ca2d84b2 at this point is probably the best we > can do. Let's CC Linus, Andrew, and Greg (Linus is travelling AFAIK so I'm > not sure whether Greg won't do release for him). I'm back home now, although possibly jetlagged. The revert looks trivial (a conflict due to find_get_entries_tag() having been removed in the meantime), and I guess that's the right thing to do right now. Matthew, comments? Linus