> diff --git v3.11-rc3.orig/mm/huge_memory.c v3.11-rc3/mm/huge_memory.c > index 243e710..3cb29e1 100644 > --- v3.11-rc3.orig/mm/huge_memory.c > +++ v3.11-rc3/mm/huge_memory.c ... > @@ -864,14 +868,17 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm, > pmd_t pmd; > pgtable_t pgtable; > int ret; > + spinlock_t *uninitialized_var(dst_ptl), *uninitialized_var(src_ptl); > > ret = -ENOMEM; > pgtable = pte_alloc_one(dst_mm, addr); > if (unlikely(!pgtable)) > goto out; > > - spin_lock(&dst_mm->page_table_lock); > - spin_lock_nested(&src_mm->page_table_lock, SINGLE_DEPTH_NESTING); > + dst_ptl = huge_pmd_lockptr(dst_mm, dst_ptl); > + src_ptl = huge_pmd_lockptr(src_mm, src_ptl); I found one mistake. This should be: + dst_ptl = huge_pmd_lockptr(dst_mm, dst_pmd); + src_ptl = huge_pmd_lockptr(src_mm, src_pmd); Thanks, Naoya Horiguchi > + spin_lock(dst_ptl); > + spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING); > > ret = -EAGAIN; > pmd = *src_pmd; -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>