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 564B1C2D0F0 for ; Wed, 1 Apr 2020 18:06:28 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id E662420787 for ; Wed, 1 Apr 2020 18:06:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="i+cOOUiG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E662420787 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 628A58E0007; Wed, 1 Apr 2020 14:06:27 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5B25B8E0006; Wed, 1 Apr 2020 14:06:27 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 47A818E0007; Wed, 1 Apr 2020 14:06:27 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0197.hostedemail.com [216.40.44.197]) by kanga.kvack.org (Postfix) with ESMTP id 2F6DA8E0006 for ; Wed, 1 Apr 2020 14:06:27 -0400 (EDT) Received: from smtpin26.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id E59FE180AD815 for ; Wed, 1 Apr 2020 18:06:26 +0000 (UTC) X-FDA: 76660065972.26.twig68_38413e0d8b234 X-HE-Tag: twig68_38413e0d8b234 X-Filterd-Recvd-Size: 3181 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf40.hostedemail.com (Postfix) with ESMTP for ; Wed, 1 Apr 2020 18:06:26 +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 08B1C2071A; Wed, 1 Apr 2020 18:06:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585764385; bh=wGJfsStv/o8iBthUPnKYXV5sqz3tNFOfYyySNd33CNM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=i+cOOUiGgpBf5MwOavDQT/S4h1rU9K3h2C6yvBXiKEMnJ/+RuoSfv0JMJjLPFk99M 6dmg8frVngWLpQCurTw8LF49EqpA+y30cx7Kbh4y2oEgMXGac+QviplThwcHvIABr8 qHOF+tNyTNAqnswPulNeLjHQDp1GydPzgw1c8svU= Date: Wed, 1 Apr 2020 11:06:24 -0700 From: Andrew Morton To: Daniel Jordan Cc: Pankaj Gupta , David Hildenbrand , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Duyck , Baoquan He , Kirill Tkhai , Michal Hocko , Oscar Salvador , Pavel Tatashin , Shile Zhang , Yiqian Wei Subject: Re: [PATCH v1 0/2] mm/page_alloc: fix stalls/soft lockups with huge VMs Message-Id: <20200401110624.e5caf6632215004a18a3757b@linux-foundation.org> In-Reply-To: <20200401144529.7zkqq4rfdnitg32h@ca-dmjordan1.us.oracle.com> References: <20200401104156.11564-1-david@redhat.com> <596d593e-7f36-0e24-6c67-311bd6971e89@redhat.com> <20200401144529.7zkqq4rfdnitg32h@ca-dmjordan1.us.oracle.com> 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 Wed, 1 Apr 2020 10:45:29 -0400 Daniel Jordan wrote: > On Wed, Apr 01, 2020 at 04:31:51PM +0200, Pankaj Gupta wrote: > > > On 01.04.20 12:41, David Hildenbrand wrote: > > > > Two fixes for misleading stall messages / soft lockups with huge nodes / > > > > zones during boot without CONFIG_PREEMPT. > > > > > > > > David Hildenbrand (2): > > > > mm/page_alloc: fix RCU stalls during deferred page initialization > > > > mm/page_alloc: fix watchdog soft lockups during set_zone_contiguous() > > > > > > > > mm/page_alloc.c | 2 ++ > > > > 1 file changed, 2 insertions(+) > > > > > > > > > > Patch #1 requires "[PATCH v3] mm: fix tick timer stall during deferred > > > page init" > > > > > > https://lkml.kernel.org/r/20200311123848.118638-1-shile.zhang@linux.alibaba.com > > > > Thanks! Took me some time to figure it out. > > FYI, I'm planning to post an alternate version of that fix, hopefully today if > all goes well with my testing. I assume you'll redo this two-patch series to apply on top of this forthcoming patch?