From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755548AbbAWPIj (ORCPT ); Fri, 23 Jan 2015 10:08:39 -0500 Received: from bh-25.webhostbox.net ([208.91.199.152]:51640 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751464AbbAWPIh (ORCPT ); Fri, 23 Jan 2015 10:08:37 -0500 Message-ID: <54C263CC.1060904@roeck-us.net> Date: Fri, 23 Jan 2015 07:07:56 -0800 From: Guenter Roeck User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: "Kirill A. Shutemov" CC: akpm@linux-foundation.org, mm-commits@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-next@vger.kernel.org, sfr@canb.auug.org.au, mhocko@suse.cz, "Kirill A. Shutemov" Subject: Re: mmotm 2015-01-22-15-04: qemu failures due to 'mm: account pmd page tables to the process' References: <54c1822d.RtdGfWPekQVAw8Ly%akpm@linux-foundation.org> <20150123050445.GA22751@roeck-us.net> <20150123111304.GA5975@node.dhcp.inet.fi> In-Reply-To: <20150123111304.GA5975@node.dhcp.inet.fi> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Authenticated_sender: linux@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-CTCH-PVer: 0000001 X-CTCH-Spam: Unknown X-CTCH-VOD: Unknown X-CTCH-Flags: 0 X-CTCH-RefID: str=0001.0A020201.54C263F4.03C6,ss=1,re=0.001,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 X-CTCH-Score: 0.001 X-CTCH-ScoreCust: 0.000 X-CTCH-Rules: C_4847, X-CTCH-SenderID: linux@roeck-us.net X-CTCH-SenderID-Flags: 0 X-CTCH-SenderID-TotalMessages: 7 X-CTCH-SenderID-TotalSpam: 0 X-CTCH-SenderID-TotalSuspected: 0 X-CTCH-SenderID-TotalConfirmed: 0 X-CTCH-SenderID-TotalBulk: 0 X-CTCH-SenderID-TotalVirus: 0 X-CTCH-SenderID-TotalRecipients: 0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: mailgid no entry from get_relayhosts_entry X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/23/2015 03:13 AM, Kirill A. Shutemov wrote: > On Thu, Jan 22, 2015 at 09:04:45PM -0800, Guenter Roeck wrote: >> On Thu, Jan 22, 2015 at 03:05:17PM -0800, akpm@linux-foundation.org wrote: >>> The mm-of-the-moment snapshot 2015-01-22-15-04 has been uploaded to >>> >>> http://www.ozlabs.org/~akpm/mmotm/ >>> >> qemu:sh fails to shut down. >> >> bisect log: >> >> # bad: [03586ad04b2170ee816e6936981cc7cd2aeba129] pci: test for unexpectedly disabled bridges >> # good: [ec6f34e5b552fb0a52e6aae1a5afbbb1605cc6cc] Linux 3.19-rc5 >> git bisect start 'HEAD' 'v3.19-rc5' >> # bad: [d113ba21d15c7d3615fd88490d1197615bb39fc0] mm: remove lock validation check for MADV_FREE >> git bisect bad d113ba21d15c7d3615fd88490d1197615bb39fc0 >> # good: [17351d1625a5030fa16f1346b77064c03b51f107] mm:add KPF_ZERO_PAGE flag for /proc/kpageflags >> git bisect good 17351d1625a5030fa16f1346b77064c03b51f107 >> # good: [ad18ad1fce6f241a9cbd4adfd6b16c9283181e39] memcg: add BUILD_BUG_ON() for string tables >> git bisect good ad18ad1fce6f241a9cbd4adfd6b16c9283181e39 >> # bad: [aa7e7cbfa43b74f6faef04ff730b5098544a4f77] mm/compaction: enhance tracepoint output for compaction begin/end >> git bisect bad aa7e7cbfa43b74f6faef04ff730b5098544a4f77 >> # good: [a40d0d2cf21e2714e9a6c842085148c938bf36ab] mm: memcontrol: remove unnecessary soft limit tree node test >> git bisect good a40d0d2cf21e2714e9a6c842085148c938bf36ab >> # good: [4ec4aa2e07c1d6eee61f6cace29401c6febcb6c5] mm: make FIRST_USER_ADDRESS unsigned long on all archs >> git bisect good 4ec4aa2e07c1d6eee61f6cace29401c6febcb6c5 >> # bad: [22310c209483224a64436a6e815a86feda681659] mm: account pmd page tables to the process >> git bisect bad 22310c209483224a64436a6e815a86feda681659 >> # good: [19a41261b1dcd8d12372d9c57c2035144608a599] arm: define __PAGETABLE_PMD_FOLDED for !LPAE >> git bisect good 19a41261b1dcd8d12372d9c57c2035144608a599 >> # first bad commit: [22310c209483224a64436a6e815a86feda681659] mm: account pmd page tables to the process >> >> --- >> >> qemu:microblaze generates warnings to the console. >> >> WARNING: CPU: 0 PID: 32 at mm/mmap.c:2858 exit_mmap+0x184/0x1a4() >> >> with various call stacks. See >> http://server.roeck-us.net:8010/builders/qemu-microblaze-mmotm/builds/15/steps/qemubuildcommand/logs/stdio >> for details. > > Could you try patch below? Completely untested. > >>>From b584bb8d493794f67484c0b57c161d61c02599bc Mon Sep 17 00:00:00 2001 > From: "Kirill A. Shutemov" > Date: Fri, 23 Jan 2015 13:08:26 +0200 > Subject: [PATCH] microblaze: define __PAGETABLE_PMD_FOLDED > > Microblaze uses custom implementation of PMD folding, but doesn't define > __PAGETABLE_PMD_FOLDED, which generic code expects to see. Let's fix it. > > Defining __PAGETABLE_PMD_FOLDED will drop out unused __pmd_alloc(). > It also fixes problems with recently-introduced pmd accounting. > > Signed-off-by: Kirill A. Shutemov > Reported-by: Guenter Roeck Tested working. Tested-by: Guenter Roeck Any idea how to fix the sh problem ? Thanks, Guenter