From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f197.google.com (mail-wr0-f197.google.com [209.85.128.197]) by kanga.kvack.org (Postfix) with ESMTP id 0498B6B0038 for ; Tue, 4 Apr 2017 14:30:27 -0400 (EDT) Received: by mail-wr0-f197.google.com with SMTP id w96so29472220wrb.13 for ; Tue, 04 Apr 2017 11:30:26 -0700 (PDT) Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com. [148.163.158.5]) by mx.google.com with ESMTPS id s40si17625506wrc.179.2017.04.04.11.30.24 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 04 Apr 2017 11:30:25 -0700 (PDT) Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v34ISZhI138900 for ; Tue, 4 Apr 2017 14:30:23 -0400 Received: from e15.ny.us.ibm.com (e15.ny.us.ibm.com [129.33.205.205]) by mx0b-001b2d01.pphosted.com with ESMTP id 29ktf7q4sg-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 04 Apr 2017 14:30:23 -0400 Received: from localhost by e15.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 4 Apr 2017 14:30:22 -0400 Date: Tue, 4 Apr 2017 13:30:13 -0500 From: Reza Arbab Subject: Re: [PATCH 0/6] mm: make movable onlining suck less References: <20170330115454.32154-1-mhocko@kernel.org> <20170403115545.GK24661@dhcp22.suse.cz> <20170403195830.64libncet5l6vuvb@arbab-laptop> <20170403202337.GA12482@dhcp22.suse.cz> <20170403204213.rs7k2cvsnconel2z@arbab-laptop> <20170404072329.GA15132@dhcp22.suse.cz> <20170404073412.GC15132@dhcp22.suse.cz> <20170404082302.GE15132@dhcp22.suse.cz> <20170404160239.ftvuxklioo6zvuxl@arbab-laptop> <20170404164452.GQ15132@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20170404164452.GQ15132@dhcp22.suse.cz> Message-Id: <20170404183012.a6biape5y7vu6cjm@arbab-laptop> Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: Mel Gorman , linux-mm@kvack.org, Andrew Morton , Vlastimil Babka , Andrea Arcangeli , Yasuaki Ishimatsu , Tang Chen , qiuxishi@huawei.com, Kani Toshimitsu , slaoub@gmail.com, Joonsoo Kim , Andi Kleen , Zhang Zhen , David Rientjes , Daniel Kiper , Igor Mammedov , Vitaly Kuznetsov , LKML , Chris Metcalf , Dan Williams , Heiko Carstens , Lai Jiangshan , Martin Schwidefsky On Tue, Apr 04, 2017 at 06:44:53PM +0200, Michal Hocko wrote: >Thanks for your testing! This is highly appreciated. >Can I assume your Tested-by? Of course! Not quite done, though. I think I found another edge case. You get an oops when removing all of a node's memory: __nr_to_section __pfn_to_section find_biggest_section_pfn shrink_pgdat_span __remove_zone __remove_section __remove_pages arch_remove_memory remove_memory I stuck some debugging prints in, for context: shrink_pgdat_span: start_pfn=0x10000, end_pfn=0x10100, pgdat_start_pfn=0x0, pgdat_end_pfn=0x20000 shrink_pgdat_span: start_pfn=0x10100, end_pfn=0x10200, pgdat_start_pfn=0x0, pgdat_end_pfn=0x20000 ...%<... shrink_pgdat_span: start_pfn=0x1fe00, end_pfn=0x1ff00, pgdat_start_pfn=0x0, pgdat_end_pfn=0x20000 shrink_pgdat_span: start_pfn=0x1ff00, end_pfn=0x20000, pgdat_start_pfn=0x0, pgdat_end_pfn=0x20000 find_biggest_section_pfn: start_pfn=0x0, end_pfn=0x1ff00 find_biggest_section_pfn loop: pfn=0x1feff, sec_nr = 0x1fe find_biggest_section_pfn loop: pfn=0x1fdff, sec_nr = 0x1fd ...%<... find_biggest_section_pfn loop: pfn=0x1ff, sec_nr = 0x1 find_biggest_section_pfn loop: pfn=0xff, sec_nr = 0x0 find_biggest_section_pfn loop: pfn=0xffffffffffffffff, sec_nr = 0xffffffffffffff Unable to handle kernel paging request for data at address 0xc000800000f19e78 -- Reza Arbab -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org