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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 9B82AC35242 for ; Wed, 12 Feb 2020 00:41:34 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5C8C82086A for ; Wed, 12 Feb 2020 00:41:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="INd7kEPX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5C8C82086A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id E11386B037F; Tue, 11 Feb 2020 19:41:33 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id DC1B76B0381; Tue, 11 Feb 2020 19:41:33 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CAFEB6B0382; Tue, 11 Feb 2020 19:41:33 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0118.hostedemail.com [216.40.44.118]) by kanga.kvack.org (Postfix) with ESMTP id B046F6B037F for ; Tue, 11 Feb 2020 19:41:33 -0500 (EST) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 570702DFA for ; Wed, 12 Feb 2020 00:41:33 +0000 (UTC) X-FDA: 76479621666.27.place84_d87a14a5681d X-HE-Tag: place84_d87a14a5681d X-Filterd-Recvd-Size: 3484 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf12.hostedemail.com (Postfix) with ESMTP for ; Wed, 12 Feb 2020 00:41:32 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 01A7B20848; Wed, 12 Feb 2020 00:41:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581468092; bh=yX5ZMy6plWEP8E2d4qLqCr25AcByi/q52rsYnZ2Ul4o=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=INd7kEPXPhFnghbjBjV/SYqNBLKzyB+aOV1GNOinvhqvyH6B9UTFpthnIdugneo7c z0IIeP8MTomYrJVpFLWKWhuXyoEa9IflxvHTr6DKd3+Xe0HdmWyX9ELBCjiPU63/om YHqU7htMWjjKOWrZfXRI90ldvz1cEAGF+7E4uT6o= Date: Tue, 11 Feb 2020 16:41:31 -0800 From: Andrew Morton To: Wei Yang Cc: Baoquan He , David Hildenbrand , Michal Hocko , Naoya Horiguchi , linux-mm@kvack.org, kkabe@vega.pgw.jp, bugzilla-daemon@bugzilla.kernel.org Subject: Re: [Bug 206401] kernel panic on Hyper-V after 5 minutes due to memory hot-add Message-Id: <20200211164131.a594d2efc45b4e8744c98421@linux-foundation.org> In-Reply-To: <20200210230741.GB32495@richard> References: <20200209213217.73abdc867faec8c359e2ba08@linux-foundation.org> <20200210054027.GI26758@MiWiFi-R3L-srv> <20200209215644.f2dfd7b6cb13f374a0ef8f32@linux-foundation.org> <20200210060923.GC8965@MiWiFi-R3L-srv> <20200210061551.GD8965@MiWiFi-R3L-srv> <20200210230741.GB32495@richard> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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, 11 Feb 2020 07:07:41 +0800 Wei Yang wrote: > On Mon, Feb 10, 2020 at 02:15:51PM +0800, Baoquan He wrote: > >On 02/10/20 at 02:09pm, Baoquan He wrote: > >> On 02/09/20 at 09:56pm, Andrew Morton wrote: > >> > On Mon, 10 Feb 2020 13:40:27 +0800 Baoquan He wrote: > >> > > >> > > Hi Andrew, > >> > > > >> > > On 02/09/20 at 09:32pm, Andrew Morton wrote: > >> > > > On Tue, 04 Feb 2020 11:25:48 +0000 bugzilla-daemon@bugzilla.kernel.org wrote: > >> > > > > >> > > > > https://bugzilla.kernel.org/show_bug.cgi?id=206401 > >> > > > > > >> > > > > >> > > > An oops during mem hotadd. Could someone please take a look when > >> > > > convenient? > >> > > > >> > > This has been addressed by Wei Yang's patch, please check it here: > >> > > > >> > > http://lkml.kernel.org/r/20200209104826.3385-7-bhe@redhat.com > >> > > > >> > > >> > hm, OK, thanks. It's unfortunate that a 5.5 fix is buried in a > >> > six-patch series which is still in progress! Can we please merge that > >> > as a standalone fix with a cc:stable, Fixes:, etc? > > > >Maybe can add Fixes tag as follow when merge: > > > >Fixes: ba72b4c8cf60 ("mm/sparsemem: support sub-section hotplug") > > The reporter (cc'ed here) is still seeing issues: https://bugzilla.kernel.org/show_bug.cgi?id=206401 Could we please continue this investigation via emailed reply-to-all, rather than via the bugzilla interface?