From 06a27e265d6be92db8ef6e4abbef33c45453b2cb Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 2 Sep 2008 17:54:10 -0700 Subject: x86: work around MTRR mask setting, v2 commit 9754a5b840a209bc1f192d59f63e81b698a55ac8 upstream x86: work around MTRR mask setting, v2 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: Yinghai Lu Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/cpu/mtrr/generic.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c index 10a46dec1f15..745b974d5c95 100644 --- a/arch/x86/kernel/cpu/mtrr/generic.c +++ b/arch/x86/kernel/cpu/mtrr/generic.c @@ -387,7 +387,12 @@ 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; } } -- cgit v1.2.3