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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 A00F9C5B57D for ; Sat, 6 Jul 2019 02:40:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5ECDA21738 for ; Sat, 6 Jul 2019 02:40:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562380801; bh=drtASFa2/O/JuvlRQiTyVSXk+alLojG7530iEUMd3Bk=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=XApcu0OCtULBPZ4gh58Ww49nU2JoJshNEGbw4MQtTVlJkgSseiDigkyZ+SLYIy4BL Wb0paKLX+NSY2n5LtsiT4RDKnCf3yyPAWuLXEm4PgXgMHzQqzjse40ARmXcw3I6+C5 XVp+V/n5kSo7XqEhJvxI0nSZJRblrKfq6yrnyx5A= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726683AbfGFCkA (ORCPT ); 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-Google-Smtp-Source: APXvYqy8Dhkjg8Cm8kFAS7kMOkOvKA90w1VnxH35cfrQnRQk779e+7ASWUzaxc7YxsLtGMtN8eqp4g== 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