From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <48083506.7080909@cn.fujitsu.com> Date: Fri, 18 Apr 2008 13:43:34 +0800 From: Shi Weihua MIME-Version: 1.0 Subject: Re: [PATCH] memcgroup: check and initialize page->cgroup in memmap_init_zone References: <48080706.50305@cn.fujitsu.com> <48080930.5090905@cn.fujitsu.com> <48080B86.7040200@cn.fujitsu.com> <20080417201432.36b1c326.akpm@linux-foundation.org> <20080418123256.da4d1db0.kamezawa.hiroyu@jp.fujitsu.com> <20080418140946.e265c1f3.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20080418140946.e265c1f3.kamezawa.hiroyu@jp.fujitsu.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: KAMEZAWA Hiroyuki Cc: Andrew Morton , balbir@linux.vnet.ibm.com, xemul@openvz.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, hugh@veritas.com List-ID: KAMEZAWA Hiroyuki wrote:: > On Fri, 18 Apr 2008 12:32:56 +0900 > KAMEZAWA Hiroyuki wrote: > >>> Or perhaps that page was used and then later freed before we got to >>> memmap_init_zone() and was freed with a non-zero ->page_cgroup. Which is >>> unlikely given that page.page_cgroup was only just added and is only >>> present if CONFIG_CGROUP_MEM_RES_CTLR. >>> >> Hmm, I'll try his .config and see what happens. >> > I reproduced the hang with his config and confirmed his fix works well. > But I can't find why...I'll dig a bit more. If i use CONFIG_SPARSEMEM instead of CONFIG_DISCONTIGMEM, the kernel boots successfully. -- 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