From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f43.google.com (mail-pa0-f43.google.com [209.85.220.43]) by kanga.kvack.org (Postfix) with ESMTP id 180EB6B0032 for ; Fri, 23 Jan 2015 16:55:22 -0500 (EST) Received: by mail-pa0-f43.google.com with SMTP id eu11so10990864pac.2 for ; Fri, 23 Jan 2015 13:55:21 -0800 (PST) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org. [140.211.169.12]) by mx.google.com with ESMTPS id kz17si3481417pab.60.2015.01.23.13.55.21 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 23 Jan 2015 13:55:21 -0800 (PST) Date: Fri, 23 Jan 2015 13:55:19 -0800 From: Andrew Morton Subject: Re: mmotm 2015-01-22-15-04: qemu failures due to 'mm: account pmd page tables to the process' Message-Id: <20150123135519.9f1061caf875f41f89298d59@linux-foundation.org> In-Reply-To: <54C263CC.1060904@roeck-us.net> References: <54c1822d.RtdGfWPekQVAw8Ly%akpm@linux-foundation.org> <20150123050445.GA22751@roeck-us.net> <20150123111304.GA5975@node.dhcp.inet.fi> <54C263CC.1060904@roeck-us.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Guenter Roeck Cc: "Kirill A. Shutemov" , 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" On Fri, 23 Jan 2015 07:07:56 -0800 Guenter Roeck wrote: > >> > >> 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 ? Can you tell us more about it? All I'm seeing is "qemu:sh fails to shut down", which isn't very clear. -- 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