Tile's __pte_free_tlb() implementation makes assumptions about the generic mmu_gather implementation, cure this ;-) [ Chris, from a quick look L2_USER_PGTABLE_PAGES is something like: 1 << (24 - 16 + 3), which looks awefully large for an on-stack array. ] Cc: Chris Metcalf Signed-off-by: Peter Zijlstra --- arch/tile/mm/pgtable.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) Index: linux-2.6/arch/tile/mm/pgtable.c =================================================================== --- linux-2.6.orig/arch/tile/mm/pgtable.c +++ linux-2.6/arch/tile/mm/pgtable.c @@ -252,19 +252,8 @@ void __pte_free_tlb(struct mmu_gather *t int i; pgtable_page_dtor(pte); - tlb->need_flush = 1; - if (tlb_fast_mode(tlb)) { - struct page *pte_pages[L2_USER_PGTABLE_PAGES]; - for (i = 0; i < L2_USER_PGTABLE_PAGES; ++i) - pte_pages[i] = pte + i; - free_pages_and_swap_cache(pte_pages, L2_USER_PGTABLE_PAGES); - return; - } - for (i = 0; i < L2_USER_PGTABLE_PAGES; ++i) { - tlb->pages[tlb->nr++] = pte + i; - if (tlb->nr >= FREE_PTE_NR) - tlb_flush_mmu(tlb, 0, 0); - } + for (i = 0; i < L2_USER_PGTABLE_PAGES; ++i) + tlb_remove_page(tlb, pte + i); } #ifndef __tilegx__