From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from g1t0026.austin.hp.com (g1t0026.austin.hp.com [15.216.28.33]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "smtp.hp.com", Issuer "VeriSign Class 3 Secure Server CA - G3" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 7D9062C0099 for ; Sat, 26 Jan 2013 05:29:45 +1100 (EST) Message-ID: <1359137977.14145.417.camel@misato.fc.hp.com> Subject: Re: [PATCH Bug fix 0/5] Bug fix for physical memory hot-remove. From: Toshi Kani To: Tang Chen Date: Fri, 25 Jan 2013 11:19:37 -0700 In-Reply-To: <1358854984-6073-1-git-send-email-tangchen@cn.fujitsu.com> References: <1358854984-6073-1-git-send-email-tangchen@cn.fujitsu.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Cc: linux-mm@kvack.org, paulus@samba.org, hpa@zytor.com, cl@linux.com, sfr@canb.auug.org.au, x86@kernel.org, linux-acpi@vger.kernel.org, isimatu.yasuaki@jp.fujitsu.com, linfeng@cn.fujitsu.com, mgorman@suse.de, kosaki.motohiro@jp.fujitsu.com, rientjes@google.com, len.brown@intel.com, jiang.liu@huawei.com, wency@cn.fujitsu.com, julian.calaby@gmail.com, glommer@parallels.com, wujianguo@huawei.com, yinghai@kernel.org, laijs@cn.fujitsu.com, linux-kernel@vger.kernel.org, minchan.kim@gmail.com, akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 2013-01-22 at 19:42 +0800, Tang Chen wrote: > Here are some bug fix patches for physical memory hot-remove. All these > patches are based on the latest -mm tree. > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm > > And patch1 and patch3 are very important. > patch1: free compound pages when freeing memmap, otherwise the kernel > will panic the next time memory is hot-added. > patch3: the old way of freeing pagetable pages was wrong. We should never > split larger pages into small ones. > > > Lai Jiangshan (1): > Bug-fix: mempolicy: fix is_valid_nodemask() > > Tang Chen (3): > Bug fix: Do not split pages when freeing pagetable pages. > Bug fix: Fix section mismatch problem of > release_firmware_map_entry(). > Bug fix: Fix the doc format in drivers/firmware/memmap.c > > Wen Congyang (1): > Bug fix: consider compound pages when free memmap > > arch/x86/mm/init_64.c | 148 ++++++++++++++------------------------------- > drivers/firmware/memmap.c | 16 +++--- > mm/mempolicy.c | 36 +++++++---- > mm/sparse.c | 2 +- > 4 files changed, 77 insertions(+), 125 deletions(-) This patchset fixed a blocker panic I was hitting in my memory hot-plug testing. Memory hotplug works fine with this patchset (for testing my hotplug framework patchset :). For the series: Tested-by: Toshi Kani Thanks, -Toshi