On Thu, 8 Sep 2005, Jan Beulich wrote:
> diff -Npru 2.6.13/arch/i386/kernel/traps.c
> 2.6.13-i386-die-irq/arch/i386/kernel/traps.c
> --- 2.6.13/arch/i386/kernel/traps.c 2005-08-29 01:41:01.000000000
> +0200
> +++ 2.6.13-i386-die-irq/arch/i386/kernel/traps.c 2005-09-07
> 11:39:40.000000000 +0200
> @@ -304,6 +304,7 @@ void die(const char * str, struct pt_reg
> spinlock_t lock;
> u32 lock_owner;
> int lock_owner_depth;
> + unsigned long flags;
> } die = {
> .lock = SPIN_LOCK_UNLOCKED,
> .lock_owner = -1,
> @@ -313,7 +314,7 @@ void die(const char * str, struct pt_reg
>
> if (die.lock_owner != raw_smp_processor_id()) {
> console_verbose();
> - spin_lock_irq(&die.lock);
> + spin_lock_irqsave(&die.lock, die.flags);
This corrupts flags on contention, use a stack variable.
-
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