From 64f351d197d9ae8ad9624998afa8ee18e696ca44 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 4 Feb 2008 16:48:08 +0100 Subject: [PATCH] x86: cpa selftest, skip non present entries pud and pmd entries in the RAM area might be marked as non present. Do not try to modify them in the selftest. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86/mm/pageattr-test.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c index 7573e78..398f3a5 100644 --- a/arch/x86/mm/pageattr-test.c +++ b/arch/x86/mm/pageattr-test.c @@ -137,7 +137,8 @@ static __init int exercise_pageattr(void) for (k = 0; k < len[i]; k++) { pte = lookup_address(addr[i] + k*PAGE_SIZE, &level); - if (!pte || pgprot_val(pte_pgprot(*pte)) == 0) { + if (!pte || pgprot_val(pte_pgprot(*pte)) == 0 || + !(pte_val(*pte) & _PAGE_PRESENT)) { addr[i] = 0; break; } -- 2.7.4