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=-8.6 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS,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 7B73AC282CC for ; Tue, 5 Feb 2019 19:03:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 521792175B for ; Tue, 5 Feb 2019 19:03:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="vW6cIpa4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729428AbfBETDE (ORCPT ); Tue, 5 Feb 2019 14:03:04 -0500 Received: from mail-pg1-f179.google.com ([209.85.215.179]:42244 "EHLO mail-pg1-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726943AbfBETDD (ORCPT ); Tue, 5 Feb 2019 14:03:03 -0500 Received: by mail-pg1-f179.google.com with SMTP id d72so1772353pga.9 for ; Tue, 05 Feb 2019 11:03:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:in-reply-to:message-id:references :user-agent:mime-version; bh=U4R4yE369nrKTa7CgvPCPtgPOR1uNAIMOfUGDkxSCgE=; b=vW6cIpa4Ip2dQnvO55zgU/BZbaTziP0rn3LBpSGLPaUiUlZ8baDnFw1yxbnf4trxH3 psWLBB/q7sqsxGnFJOtNSWlX5g7Ez0ADxEwc+tkWyBqpZK63WDoxpSxBV+hORg8kzW4J ULH4CQLYVbe0/mR5x7NbtmY2WmHxT7f/UlsRDwM8ajkWC1oY2pWoyaU4xMihnG5XKiwz 2I7cdcHf1vGHDTVKaS3+WB1S9Ew8dqzFlX3tZEvTlFnQMq1bKSviRrViAjxrFR6Vqp6M 6RJH+COyJmzszurQTRP2fanOIP/T59KoSyCYfuQxSUQByPT08WhZKamvZmf6a9GVIQ6t 8a5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:in-reply-to:message-id :references:user-agent:mime-version; bh=U4R4yE369nrKTa7CgvPCPtgPOR1uNAIMOfUGDkxSCgE=; b=E9+8fiyRSW+Zep6Bb2fBTBYeAwYGPCgZLpn6piTuRHAOb1pS0FFa+yE8von5LFMSmy X6a5/bjdDHgMwHlk2OnMxOhcoVTH9GSLjLTfY4zzWPBFrD9qSl052I08LDeKNaE+yVVR KLzz+mN1gwzSbmJA/3kbmd8SnKnCw+N5LrFBbMKwddfdvf50K8O0fnu1OYMk63ZFrBnR GIz7JgUqZRjgrIT49kqeVl0MkM8zC7tiexXP7y8hYjDL6S4d+lli3cykqEhGpiuqHMGf 3SYWMIoXbk96z58Un4RTppvUc1nmcXI1o1BcHwoJnFLBR3RS62ZBOGYOkDzpREzBDIXr Ei6g== X-Gm-Message-State: AHQUAubUQX3bwo7nPJ1tnFnasOPcFoM5Z75VrROsdzHOnaKWX81YoQAz eHLNM6aN5lC+5hnpBE6eKBbQTg== X-Google-Smtp-Source: AHgI3IYigtc/NZJ+hOsqBz2l+YWFFJmz3FXNhOyzEH5zFomALCTTclGAU03PtrJ9Mw2JgNfv6KxM+g== X-Received: by 2002:aa7:83c6:: with SMTP id j6mr6427291pfn.91.1549393382267; Tue, 05 Feb 2019 11:03:02 -0800 (PST) Received: from [100.112.89.103] ([104.133.8.103]) by smtp.gmail.com with ESMTPSA id z10sm5194066pfg.120.2019.02.05.11.03.01 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 05 Feb 2019 11:03:01 -0800 (PST) Date: Tue, 5 Feb 2019 11:02:49 -0800 (PST) From: Hugh Dickins X-X-Sender: hugh@eggly.anvils To: Qian Cai cc: Hugh Dickins , Artem Savkov , Baoquan He , Andrea Arcangeli , Michal Hocko , Vlastimil Babka , Linus Torvalds , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: mm: race in put_and_wait_on_page_locked() In-Reply-To: <1ce33d5f-1f0f-7144-2455-fbae7f5f82c8@lca.pw> Message-ID: References: <20190204091300.GB13536@shodan.usersys.redhat.com> <20190205121002.GA32424@shodan.usersys.redhat.com> <1ce33d5f-1f0f-7144-2455-fbae7f5f82c8@lca.pw> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 5 Feb 2019, Qian Cai wrote: > > >> Cai, can you please check if you can reproduce this issue in your > >> environment with 5.0-rc5? > > > > Yes, please do - practical confirmation more convincing than my certainty. > > Indeed, I am no longer be able to reproduce this anymore. Great, thanks. I'll add a message to the other thread to wrap that up too. Hugh