pmdp_invalidate clears the present bit without taking into account that it might be in the _PAGE_NUMA bit leaving the PMD in an unexpected state. Clear pmd_numa before invalidating.
Signed-off-by: Mel Gorman <[email protected]> --- mm/pgtable-generic.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c index 3929a40..a7aefd3 100644 --- a/mm/pgtable-generic.c +++ b/mm/pgtable-generic.c @@ -191,6 +191,9 @@ pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp) void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp) { + pmd_t entry = *pmdp; + if (pmd_numa(entry)) + entry = pmd_mknonnuma(entry); set_pmd_at(vma->vm_mm, address, pmdp, pmd_mknotpresent(*pmdp)); flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE); } -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
