On Mon, 9 Mar 2009 22:22:41 +0800
Wu Fengguang <fengguang.wu@intel.com> wrote:

> 
> Thanks for the data! Now it seems that some pages are totally missing
> from bootmem or slabs or page cache or any application consumptions...
> 

So it isn't just me that's blind. That's something I guess. :)

> Will searching through /proc/kpageflags for reserved pages help
> identify the problem?
> 
> Oh kpageflags_read() does not include support for PG_reserved:
> 

I can probably hack together something that outputs the served pages.
Anything else that is of interest?

> > DirectMap2M:  18446744073709551613
> 
> This field looks weird.
> 

Sorry, red herring. I'm in the middle of a bisect and that particular
old bug happened to surface. It was not present with the releases
2.6.27.

Rgds
-- 
     -- Pierre Ossman

  WARNING: This correspondence is being monitored by the
  Swedish government. Make sure your server uses encryption
  for SMTP traffic and consider using PGP for end-to-end
  encryption.