From fd8ceb79314d7ff2c580b4ac4db716134c647641 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 22 Aug 2008 08:22:23 +0200 Subject: [PATCH] x86: work around MTRR mask setting, v2 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit commit 9754a5b840a209bc1f192d59f63e81b698a55ac8 upstream improve the debug printout: - make it actually display something - print it only once would be nice to have a WARN_ONCE() facility, to feed such things to kerneloops.org. Signed-off-by: Ingo Molnar Cc: S.Çağlar Onur Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/cpu/mtrr/generic.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c index f49c9706b9284..ca2180800d445 100644 --- a/arch/x86/kernel/cpu/mtrr/generic.c +++ b/arch/x86/kernel/cpu/mtrr/generic.c @@ -251,7 +251,12 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base, tmp |= ~((1<<(hi - 1)) - 1); if (tmp != mask_lo) { - WARN_ON("mtrr: your BIOS has set up an incorrect mask, fixing it up.\n"); + static int once = 1; + + if (once) { + printk(KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n"); + once = 0; + } mask_lo = tmp; } } -- 2.47.2