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Date: Tue, 24 Jun 2008 12:26:26 +0900 From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> Cc: Daisuke Nishimura <nishimura@....nes.nec.co.jp>, linux-mm@...ck.org, balbir@...ux.vnet.ibm.com, xemul@...nvz.org, linux-kernel@...r.kernel.org Subject: Re: [bad page] memcg: another bad page at page migration (2.6.26-rc5-mm3 + patch collection) On Tue, 24 Jun 2008 12:22:57 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> wrote: > On Tue, 24 Jun 2008 10:37:09 +0900 > Daisuke Nishimura <nishimura@....nes.nec.co.jp> 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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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