diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 561a42567477..811d19b5c4f6 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2206,9 +2206,12 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd, entry = pte_wrprotect(entry); if (!young) entry = pte_mkold(entry); - /* NOTE: this may set soft-dirty too on some archs */ - if (dirty) - entry = pte_mkdirty(entry); + /* + * NOTE: we don't do pte_mkdirty when dirty==true + * because it breaks sparc64 which can sigsegv + * random process. Need to revisit when we figure + * out what is special with sparc64. + */ if (soft_dirty) entry = pte_mksoft_dirty(entry); if (uffd_wp)