From 5a90cf205c922707ffed2d8f87cefd942e96b0ba Mon Sep 17 00:00:00 2001 From: john stultz Date: Wed, 2 May 2007 19:27:08 +0200 Subject: [PATCH] x86: Log reason why TSC was marked unstable Change mark_tsc_unstable() so it takes a string argument, which holds the reason the TSC was marked unstable. This is then displayed the first time mark_tsc_unstable is called. This should help us better debug why the TSC was marked unstable on certain systems and allow us to make sure we're not being overly paranoid when throwing out this troublesome clocksource. Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Andi Kleen --- drivers/acpi/processor_idle.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index ae0654cd11ea..ee5759bef945 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -475,7 +475,7 @@ static void acpi_processor_idle(void) #ifdef CONFIG_GENERIC_TIME /* TSC halts in C2, so notify users */ - mark_tsc_unstable(); + mark_tsc_unstable("possible TSC halt in C2"); #endif /* Re-enable interrupts */ local_irq_enable(); @@ -517,7 +517,7 @@ static void acpi_processor_idle(void) #ifdef CONFIG_GENERIC_TIME /* TSC halts in C3, so notify users */ - mark_tsc_unstable(); + mark_tsc_unstable("TSC halts in C3"); #endif /* Re-enable interrupts */ local_irq_enable(); -- cgit v1.2.3