diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-01-30 07:33:24 -0500 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 07:33:24 -0500 |
commit | 70edcd77a0d6d0f8731c826764f5eb6732f521e9 (patch) | |
tree | 1ea618a73c784c11b52168046d5a27197398520a | |
parent | 17abecfe651c862cd31b1f9e8ef6cfc29083f00d (diff) |
genirq: stackdump after the "Trying to free already-free IRQ" message
these bugs are harder to find than they seem, a stackdump helps.
make it dependent on CONFIG_DEBUG_SHIRQ so that people can turn it off
if it annoys them.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r-- | kernel/irq/manage.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 1f314221d534..438a01464287 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c | |||
@@ -479,6 +479,9 @@ void free_irq(unsigned int irq, void *dev_id) | |||
479 | return; | 479 | return; |
480 | } | 480 | } |
481 | printk(KERN_ERR "Trying to free already-free IRQ %d\n", irq); | 481 | printk(KERN_ERR "Trying to free already-free IRQ %d\n", irq); |
482 | #ifdef CONFIG_DEBUG_SHIRQ | ||
483 | dump_stack(); | ||
484 | #endif | ||
482 | spin_unlock_irqrestore(&desc->lock, flags); | 485 | spin_unlock_irqrestore(&desc->lock, flags); |
483 | return; | 486 | return; |
484 | } | 487 | } |