Received: by 10.223.164.202 with SMTP id h10csp5305226wrb; Tue, 21 Nov 2017 07:46:22 -0800 (PST) X-Google-Smtp-Source: AGs4zMaj4u9DRVx+MNNynpLd/jqrtHe9toZJ88EpNrPanlIJvURSVEoH81EBZym3ht6OoNQpb5Wr X-Received: by 10.99.126.78 with SMTP id o14mr17601211pgn.159.1511279182709; Tue, 21 Nov 2017 07:46:22 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1511279182; cv=none; d=google.com; s=arc-20160816; b=RzrlLufBaC/nl4+Z2VYXhnzLY1Zf+LtCOraZfQAdbOBK0Bh6AtsbNHZYI2coyWL3Vi WQIQiIEGvu3pJDpBatW/+/S6n0zqr9TRiabLyQIoPN1L7LkEEjw0QP2tWQ6aSnUeYIfx AQ1K157qE3VrURNKW3uyoi05UVImTv/l9heNKoHfZhN1Xr6p9HqkXGjdiCiMuRFXBzMG lZKFeIKx6hMKaJdzaUHL7iR5hp0rzi1fhTSzv9vykWYS1B86U9ML50g8/5UDhR6vee4M Bny33xl9Ogq6fi0eDuwao+lYIylVAFbTAZsy+H/DUarBHtJDroj0qKAHOJai6SBY/BaR k38g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:in-reply-to :references:subject:cc:to:mime-version:user-agent:from:date :message-id:arc-authentication-results; bh=yoyKePeC4RqjJ9+Bm/Wlyfx/9WoDIxKreDAFeuOfj0o=; b=SS4BATUTHeTi3EwVjCyx1RoKEjti7fl98QmVcbxlZYy57w2jGHRT7k+jR+kobQQ9AJ spXmi8CeR9jzT5RNqP6M+ZNilOrTw58/ht1AcsA2RsEyKs1X2HT0h8drZ1G7Ly6RNGS3 JZsUU3BhkwwjSG7wVv9gW5c1H97PB8kGw+hkENtPsEWCDBlQWiFZVozYb9JbeDeegFJF nMWAh0Akjk3RiDH4AnSirh89lG6fgVe2vlmEMwzCUsUmF3/F6HUtN2awvPgn2oyT1sW4 UHBVDEUSfAvmvEK0NJX7Q89s9m3JoSgT2+KyCtK00YwPjmoNPv5/xL1VkFGZanBwXnsR D3PA== ARC-Authentication-Results: i=1; mx.google.com; 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 z8si11119587pgc.6.2017.11.21.07.46.11; Tue, 21 Nov 2017 07:46:22 -0800 (PST) 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; 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 S1751290AbdKUPpc (ORCPT + 76 others); Tue, 21 Nov 2017 10:45:32 -0500 Received: from mail1.windriver.com ([147.11.146.13]:37344 "EHLO mail1.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750772AbdKUPpb (ORCPT ); Tue, 21 Nov 2017 10:45:31 -0500 Received: from ALA-HCA.corp.ad.wrs.com (ala-hca.corp.ad.wrs.com [147.11.189.40]) by mail1.windriver.com (8.15.2/8.15.1) with ESMTPS id vALFjTvF020583 (version=TLSv1 cipher=AES128-SHA bits=128 verify=FAIL); Tue, 21 Nov 2017 07:45:29 -0800 (PST) Received: from [172.25.39.2] (172.25.39.2) by ALA-HCA.corp.ad.wrs.com (147.11.189.50) with Microsoft SMTP Server (TLS) id 14.3.361.1; Tue, 21 Nov 2017 07:45:28 -0800 Message-ID: <5A144A17.8010909@windriver.com> Date: Tue, 21 Nov 2017 09:45:27 -0600 From: Chris Friesen User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: Huaitong Han , lkml CC: Subject: Re: "swap_free: Bad swap file entry" and "BUG: Bad page map in process" but no swap configured References: <57F6BB8F.7070208@windriver.com> <018601d2213a$bb0e44e0$312acea0$@alibaba-inc.com> <57FD0CF8.2030208@windriver.com> In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [172.25.39.2] Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I think we tracked it down to the "eptad" kernel option on Broadwell processors. Setting "kvm-intel.eptad=0" turned it off. Chris On 11/20/2017 03:07 AM, Huaitong Han wrote: > Hi, Chris > > I have met the same issue too, did you have found out the root cause ? > > Thanks a lot. > > Huaitong Han > > > 2016-10-12 0:02 GMT+08:00 Chris Friesen : >> On 10/08/2016 02:05 AM, Hillf Danton wrote: >>> >>> On Friday, October 07, 2016 5:01 AM Chris Friesen >>>> >>>> >>>> I have Linux host running as a kvm hypervisor. It's running CentOS. (So >>>> the >>>> kernel is based on 3.10 but with loads of stuff backported by RedHat.) I >>>> realize this is not a mainline kernel, but I was wondering if anyone is >>>> aware of >>>> similar issues that had been fixed in mainline. >>>> >>> Hey, dunno if you're looking for commit >>> 6dec97dc929 ("mm: move_ptes -- Set soft dirty bit depending on pte >>> type") >>> Hillf >> >> >> CONFIG_MEM_SOFT_DIRTY doesn't exist in our kernel so I don't think this is >> the issue. Thanks for the suggestion though. >> >> Chris From 1584575455403427109@xxx Mon Nov 20 09:08:34 +0000 2017 X-GM-THRID: 1584575455403427109 X-Gmail-Labels: Inbox,Category Forums,HistoricalUnread