Re: [Resend][PATCH] x86/power/64: Always create temporary identity mapping correctly

Ok, I want to know if the problem is the PUD alignment or the change
of PAGE_OFFSET based all together. Can you test the following change?
(on top of everything else with KASLR enabled). It will randomize the
memory sections only on PGD level.

diff --git a/arch/x86/mm/kaslr.c b/arch/x86/mm/kaslr.c
index ec8654f..a8477b0 100644
--- a/arch/x86/mm/kaslr.c
+++ b/arch/x86/mm/kaslr.c

@@ -120,7 +120,7 @@ void __init kernel_randomize_memory(void)
                 */
                entropy = remain_entropy / (ARRAY_SIZE(kaslr_regions) - i);
                prandom_bytes_state(&rand_state, &rand, sizeof(rand));
-               entropy = (rand % (entropy + 1)) & PUD_MASK;
+               entropy = (rand % (entropy + 1)) & PGDIR_MASK;
                vaddr += entropy;
                *kaslr_regions[i].base = vaddr;

@@ -129,7 +129,7 @@ void __init kernel_randomize_memory(void)
                 * randomization alignment.
                 */
                vaddr += get_padding(&kaslr_regions[i]);
-               vaddr = round_up(vaddr + 1, PUD_SIZE);
+               vaddr = round_up(vaddr + 1, PGDIR_SIZE);
                remain_entropy -= entropy;
        }
 }