KAMEZAWA Hiroyuki wrote::
> On Fri, 18 Apr 2008 10:46:30 +0800
> Shi Weihua <shiwh@cn.fujitsu.com> wrote:
> 
>> In this patch, the Author Hugh Dickins said 
>> "...memmap_init_zone doesn't need it either, ...
>> Linux assumes pointers in zeroed structures are NULL pointers."
>> But it seems it's not always the case, so we should check and initialize
>> page->cgroup anyways.
>>
> Hmm...strange. (I never see this with 2.6.25 + Primequest) 
> What memory model are you using ? CONFIG_SPRASEMEM_VMEMMAP ?

It's CONFIG_DISCONTIGMEM_MANUAL.
BTW, I attached the .config file. pls check it.

Thanks,
-Shi