From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 24 Jun 2008 12:26:26 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [bad page] memcg: another bad page at page migration (2.6.26-rc5-mm3 + patch collection) Message-Id: <20080624122626.913030bd.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20080624122257.ee590a80.kamezawa.hiroyu@jp.fujitsu.com> References: <20080623145341.0a365c67.nishimura@mxp.nes.nec.co.jp> <20080623150817.628aef9f.kamezawa.hiroyu@jp.fujitsu.com> <20080623202111.f2c54e21.kamezawa.hiroyu@jp.fujitsu.com> <20080623204448.2c4326ab.nishimura@mxp.nes.nec.co.jp> <20080624103709.3b5db84d.nishimura@mxp.nes.nec.co.jp> <20080624122257.ee590a80.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: KAMEZAWA Hiroyuki Cc: Daisuke Nishimura , linux-mm@kvack.org, balbir@linux.vnet.ibm.com, xemul@openvz.org, linux-kernel@vger.kernel.org List-ID: On Tue, 24 Jun 2008 12:22:57 +0900 KAMEZAWA Hiroyuki wrote: > On Tue, 24 Jun 2008 10:37:09 +0900 > Daisuke Nishimura wrote: > > > > I don't use shmem explicitly, but I'll test this patch anyway > > > and report the result. > > > > > Unfortunately, this patch doesn't solve my problem, hum... > > I'll dig more, too. > > In my test, I don't use large amount of memory, so I think > > no swap activities happens, perhaps. > > > Sigh, one hint in the log is > == > Bad page state in process 'switch.sh' > page:ffffe2000c8e59c0 flags:0x0200000000080018 mapping:000 > 0000000000000 mapcount:0 count:0 > cgroup:ffff81062a817050 > == > > - the page was mapped one. > - a page is swapbacked ....Anon or Shmem/tmpfs. > - mapping is NULL > ignore this... free_hot_cold_page() clears page->mapping. (--; -Kame -- 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