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=-1.0 required=3.0 tests=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 58426C34026 for ; Tue, 18 Feb 2020 08:47:04 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1C02620658 for ; Tue, 18 Feb 2020 08:47:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1C02620658 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A8FEE6B0003; Tue, 18 Feb 2020 03:47:03 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id A38656B0006; Tue, 18 Feb 2020 03:47:03 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 94F316B0007; Tue, 18 Feb 2020 03:47:03 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0248.hostedemail.com [216.40.44.248]) by kanga.kvack.org (Postfix) with ESMTP id 8057C6B0003 for ; Tue, 18 Feb 2020 03:47:03 -0500 (EST) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 0C882181AEF1F for ; Tue, 18 Feb 2020 08:47:03 +0000 (UTC) X-FDA: 76502617926.16.board67_5a9b8e9c79041 X-HE-Tag: board67_5a9b8e9c79041 X-Filterd-Recvd-Size: 2737 Received: from mail-wr1-f45.google.com (mail-wr1-f45.google.com [209.85.221.45]) by imf15.hostedemail.com (Postfix) with ESMTP for ; Tue, 18 Feb 2020 08:47:02 +0000 (UTC) Received: by mail-wr1-f45.google.com with SMTP id g3so22803006wrs.12 for ; Tue, 18 Feb 2020 00:47:02 -0800 (PST) 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:message-id:references :mime-version:content-disposition:in-reply-to; bh=jGwPEgWjRuZtCw+Nim2DKowku/hLFJKnBGF3fMVER+c=; b=iZuAhUA8ob/u1i5dLJBVWo4LKrxGzjw1wesqIL7ZRoKwTzG5OAPCvx6XVsxtFXG+vX yGFCrn2t8dWoEkqZP7WIvUQ+AlmBVc3FOQHZDnrCoI/5CpxZKtDhdZBG30ZkqyUJ2E6/ BhCjq4kW8r3b/Tb8oXzApA2wj6ALMOi98zq3iQYjmLxfG0vl6C/3aFzF/LQF00tl33sf RrPauFi5dtzxc1ZSJr6AqdnfVpXL5VtQBdpK2gheDKHjIYGIcfoyaGHeWJqhtVlel04C 3j0f67J2cGkxQLWCVqdMZ7XJLS9m1gvWt9R/v7H65OFe7C3BTTZaWZGVyj2qi61s0XpE QftA== X-Gm-Message-State: APjAAAWF7KAUD0/yNlxILVkNz8zGhB2RROt/VRwYf49hm/LP3aPomNzp 30ExJsd9ywBzjOdqKlRLq4c= X-Google-Smtp-Source: APXvYqyWP/qE2JcA7MidhxRxsF9bYvuSb1aI5dVPGgM370pj2M+1U6tCLxaH6wdI5dsrLxcOj7Ky/Q== X-Received: by 2002:adf:f80c:: with SMTP id s12mr27760321wrp.1.1582015621501; Tue, 18 Feb 2020 00:47:01 -0800 (PST) Received: from localhost (prg-ext-pat.suse.com. [213.151.95.130]) by smtp.gmail.com with ESMTPSA id q130sm2798709wme.19.2020.02.18.00.47.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Feb 2020 00:47:00 -0800 (PST) Date: Tue, 18 Feb 2020 09:47:00 +0100 From: Michal Hocko To: kkabe@vega.pgw.jp Cc: bhe@redhat.com, david@redhat.com, osalvador@suse.de, bugzilla-daemon@bugzilla.kernel.org, akpm@linux-foundation.org, richardw.yang@linux.intel.com, n-horiguchi@ah.jp.nec.com, linux-mm@kvack.org Subject: Re: [Bug 206401] kernel panic on Hyper-V after 5 minutes due to memory hot-add Message-ID: <20200218084700.GD21113@dhcp22.suse.cz> References: <20200217112054.GA9823@MiWiFi-R3L-srv> <200218152448.M0114841@vega.pgw.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200218152448.M0114841@vega.pgw.jp> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue 18-02-20 15:24:48, kkabe@vega.pgw.jp wrote: [...] > Tried out the above patch. > It seems to be working; no panic, total memory has increased and > the hot-added memory is added as HIGHMEM. I was about to post a patch to mark hotplug broken on 32b but it seems you do care about this setup. Could you describe your usecase please? -- Michal Hocko SUSE Labs