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Wed, 1 Apr 2020 14:45:14 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserp3030.oracle.com with ESMTP id 302g4tvqvj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 01 Apr 2020 14:45:14 +0000 Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 031EjAJJ026251; Wed, 1 Apr 2020 14:45:10 GMT Received: from ca-dmjordan1.us.oracle.com (/10.211.9.48) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 01 Apr 2020 07:45:09 -0700 Date: Wed, 1 Apr 2020 10:45:29 -0400 From: Daniel Jordan To: Pankaj Gupta Cc: David Hildenbrand , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Duyck , Andrew Morton , Baoquan He , Daniel Jordan , 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: <20200401144529.7zkqq4rfdnitg32h@ca-dmjordan1.us.oracle.com> References: <20200401104156.11564-1-david@redhat.com> <596d593e-7f36-0e24-6c67-311bd6971e89@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20180716 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9577 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 bulkscore=0 suspectscore=0 mlxscore=0 spamscore=0 malwarescore=0 mlxlogscore=999 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004010131 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9577 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 lowpriorityscore=0 malwarescore=0 adultscore=0 priorityscore=1501 mlxlogscore=999 bulkscore=0 suspectscore=0 mlxscore=0 spamscore=0 impostorscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004010131 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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.