On Tue, Nov 09, 2010 at 07:52:15PM +0900, Minchan Kim wrote: > Thanks, I understand the problem by your kind explanation. > So, why don't we use flush_icache_page? > > page fault > read > flush_icache_page <------ here > set_pte_at > update_mmu_cache Have you read Documentation/cachetlb.txt ?