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[PATCH] time initialisation fix

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We're not reay to take a timer interrupt until timekeeping_init() has run.
But time_init() will start the time interrupt and if it is called with
local interrupts enabled we'll immediately take an interrupt and die.

Fix that by running timekeeping_init() prior to time_init().

We don't know _why_ local interrupts got enabled on Jesse Brandeburg's
machine.  That's a separate as-yet-unsolved problem.  THe patch adds a little
bit of debugging to detect that.

This whole requirement that local interrupts be held off during early boot
keeps on biting us.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Jesse Brandeburg <jesse.brandeburg@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
john stultz 2006-07-03 00:24:04 -07:00 committed by Linus Torvalds
parent 29454dde27
commit 88fecaa27f
1 changed files with 3 additions and 1 deletions
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4
init/main.c
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@ -496,8 +496,8 @@ asmlinkage void __init start_kernel(void)
init_timers();
hrtimers_init();
softirq_init();
time_init();
timekeeping_init();
time_init();
/*
* HACK ALERT! This is early. We're enabling the console before
@ -508,6 +508,8 @@ asmlinkage void __init start_kernel(void)
if (panic_later)
panic(panic_later, panic_param);
profile_init();
if (!irqs_disabled())
printk("start_kernel(): bug: interrupts were enabled early\n");
local_irq_enable();
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start && !initrd_below_start_ok &&