On Wed, Mar 06, 2013 at 11:00:36PM -0500, Valdis.Kletnieks@xxxxxx wrote: > On Thu, 07 Mar 2013 11:43:43 +0800, ishare said: > > > set_pgd(swapper_pg_dir+i, __pgd(0)); > > > If I have not define CONFIG_X86_PAE ,then the low mem will be invalided all . > > And what makes you think that call invalidates *all* the page > mappings? because all the pde (0-768) are set to 0x0 ,so no phsical pages are mapping to these pde . isn't it? _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
