From patchwork Wed Mar 18 07:28:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srikar Dronamraju X-Patchwork-Id: 11444641 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D9DF014B4 for ; Wed, 18 Mar 2020 07:28:27 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A77E92076D for ; Wed, 18 Mar 2020 07:28:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A77E92076D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.vnet.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B66E86B0003; Wed, 18 Mar 2020 03:28:26 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id B165B6B0006; Wed, 18 Mar 2020 03:28:26 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A2BCA6B0007; Wed, 18 Mar 2020 03:28:26 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0144.hostedemail.com [216.40.44.144]) by kanga.kvack.org (Postfix) with ESMTP id 886936B0003 for ; Wed, 18 Mar 2020 03:28:26 -0400 (EDT) Received: from smtpin26.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 5566F181AEF09 for ; Wed, 18 Mar 2020 07:28:26 +0000 (UTC) X-FDA: 76607655012.26.wood93_499e283deb95f X-Spam-Summary: 2,0,0,addd28fbe92697cf,d41d8cd98f00b204,srikar@linux.vnet.ibm.com,,RULES_HIT:41:355:379:541:800:960:966:967:973:988:989:1260:1261:1345:1431:1437:1535:1542:1711:1730:1747:1777:1792:1801:1981:2194:2196:2198:2199:2200:2201:2393:2525:2526:2559:2564:2682:2685:2859:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3353:3865:3866:3867:3868:3870:3871:3874:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4250:4321:4379:4385:4423:4605:5007:6261:6742:7875:7904:8603:8985:9025:10004:10026:11026:11232:11658:11854:11914:12043:12296:12297:12555:12663:12679:12740:12895:12986:13161:13229:13846:13870:14096:14181:14394:14721:14819:21080:21451:21627:21749:21811:30054:30070,0,RBL:148.163.158.5:@linux.vnet.ibm.com:.lbl8.mailshell.net-62.8.0.100 64.201.201.201,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fn,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:24,LUA_SUMMARY:none X-HE-Tag: wood93_499e283deb95f X-Filterd-Recvd-Size: 5566 Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by imf29.hostedemail.com (Postfix) with ESMTP for ; Wed, 18 Mar 2020 07:28:25 +0000 (UTC) Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 02I73x1t131093 for ; Wed, 18 Mar 2020 03:28:25 -0400 Received: from e06smtp03.uk.ibm.com (e06smtp03.uk.ibm.com [195.75.94.99]) by mx0a-001b2d01.pphosted.com with ESMTP id 2yu7d965qv-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 18 Mar 2020 03:28:24 -0400 Received: from localhost by e06smtp03.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 18 Mar 2020 07:28:23 -0000 Received: from b06cxnps4075.portsmouth.uk.ibm.com (9.149.109.197) by e06smtp03.uk.ibm.com (192.168.101.133) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 18 Mar 2020 07:28:20 -0000 Received: from d06av24.portsmouth.uk.ibm.com (mk.ibm.com [9.149.105.60]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 02I7SJ4356295584 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 18 Mar 2020 07:28:19 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EC5CC4203F; Wed, 18 Mar 2020 07:28:18 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 13EC942042; Wed, 18 Mar 2020 07:28:15 +0000 (GMT) Received: from srikart450.in.ibm.com (unknown [9.85.106.17]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 18 Mar 2020 07:28:14 +0000 (GMT) From: Srikar Dronamraju To: Andrew Morton Cc: Srikar Dronamraju , linux-mm@kvack.org, Mel Gorman , Michael Ellerman , Sachin Sant , Michal Hocko , Christopher Lameter , linuxppc-dev@lists.ozlabs.org, Joonsoo Kim , Kirill Tkhai , Vlastimil Babka , Bharata B Rao , Nathan Lynch Subject: [PATCH v2 0/4] Fix kmalloc_node on offline nodes Date: Wed, 18 Mar 2020 12:58:06 +0530 X-Mailer: git-send-email 2.17.1 X-TM-AS-GCONF: 00 x-cbid: 20031807-0012-0000-0000-0000039305C4 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20031807-0013-0000-0000-000021CFE731 Message-Id: <20200318072810.9735-1-srikar@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.645 definitions=2020-03-18_02:2020-03-17,2020-03-18 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 mlxscore=0 suspectscore=0 clxscore=1015 priorityscore=1501 impostorscore=0 adultscore=0 spamscore=0 phishscore=0 mlxlogscore=849 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2003180032 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: Changelog v1 -> v2: - Handled comments from Vlastimil Babka and Bharata B Rao - Changes only in patch 2 and 4. Sachin recently reported that linux-next was no more bootable on few powerpc systems. https://lore.kernel.org/linux-next/3381CD91-AB3D-4773-BA04-E7A072A63968@linux.vnet.ibm.com/ # numactl -H available: 2 nodes (0-1) node 0 cpus: node 0 size: 0 MB node 0 free: 0 MB node 1 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 node 1 size: 35247 MB node 1 free: 30907 MB node distances: node 0 1 0: 10 40 1: 40 10 # Sachin bisected the problem to Commit a75056fc1e7c ("mm/memcontrol.c: allocate shrinker_map on appropriate NUMA node") The root cause analysis showed that mm/slub and powerpc/numa had some shortcomings with respect to offline nodes. This patch series is on top of patches posted at https://lore.kernel.org/linuxppc-dev/20200311110237.5731-1-srikar@linux.vnet.ibm.com/t/#u Cc: Andrew Morton Cc: linux-mm@kvack.org Cc: Mel Gorman Cc: Michael Ellerman Cc: Sachin Sant Cc: Michal Hocko Cc: Christopher Lameter Cc: linuxppc-dev@lists.ozlabs.org Cc: Joonsoo Kim Cc: Kirill Tkhai Cc: Vlastimil Babka Cc: Srikar Dronamraju Cc: Bharata B Rao Cc: Nathan Lynch Srikar Dronamraju (4): mm: Check for node_online in node_present_pages mm/slub: Use mem_node to allocate a new slab mm: Implement reset_numa_mem powerpc/numa: Set fallback nodes for offline nodes arch/powerpc/include/asm/topology.h | 16 ++++++++++++++++ arch/powerpc/kernel/smp.c | 1 + include/asm-generic/topology.h | 3 +++ include/linux/mmzone.h | 6 ++++-- include/linux/topology.h | 7 +++++++ mm/slub.c | 9 +++++---- 6 files changed, 36 insertions(+), 6 deletions(-)