Am Mon, 10 Mar 2014 11:39:44 +0100 (CET)
schrieb Thomas Gleixner <t...@linutronix.de>:
> And that definitely does not affect the quick calibration. No idea,
> except bisecting.
Ok, via bisecting I found commit
73f7d1ca32638028e3271f54616773727e2f9f26 (see below) to be the one that
introduced this regression.
Cheers,
Julian Wollrath
>From 73f7d1ca32638028e3271f54616773727e2f9f26 Mon Sep 17 00:00:00 2001
From: "Lee, Chun-Yi" <joeyli.ker...@gmail.com>
Date: Wed, 15 Jan 2014 15:25:48 +0800
Subject: [PATCH] ACPI / init: Run acpi_early_init() before timekeeping_init()
This is a variant patch from Rafael J. Wysocki's
ACPI / init: Run acpi_early_init() before efi_enter_virtual_mode()
According to Matt Fleming, if acpi_early_init() was executed before
efi_enter_virtual_mode(), the EFI initialization could benefit from
it, so Rafael's patch makes that happen.
And, we want accessing ACPI TAD device to set system clock, so move
acpi_early_init() before timekeeping_init(). This final position is
also before efi_enter_virtual_mode().
Tested-by: Toshi Kani <toshi.k...@hp.com>
Signed-off-by: Lee, Chun-Yi <j...@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
---
init/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/init/main.c b/init/main.c
index febc511e078a..b6d93c840154 100644
--- a/init/main.c
+++ b/init/main.c
@@ -565,6 +565,7 @@ asmlinkage void __init start_kernel(void)
init_timers();
hrtimers_init();
softirq_init();
+ acpi_early_init();
timekeeping_init();
time_init();
sched_clock_postinit();
@@ -641,7 +642,6 @@ asmlinkage void __init start_kernel(void)
check_bugs();
- acpi_early_init(); /* before LAPIC and SMP init */
sfi_init_late();
if (efi_enabled(EFI_RUNTIME_SERVICES)) {
--
1.9.0
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