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| author | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:24 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:24 +0100 |
| commit | 70edcd77a0d6d0f8731c826764f5eb6732f521e9 (patch) | |
| tree | 1ea618a73c784c11b52168046d5a27197398520a | |
| parent | 17abecfe651c862cd31b1f9e8ef6cfc29083f00d (diff) | |
| download | linux-70edcd77a0d6d0f8731c826764f5eb6732f521e9.tar.gz linux-70edcd77a0d6d0f8731c826764f5eb6732f521e9.tar.bz2 linux-70edcd77a0d6d0f8731c826764f5eb6732f521e9.zip | |
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) return; } printk(KERN_ERR "Trying to free already-free IRQ %d\n", irq); +#ifdef CONFIG_DEBUG_SHIRQ + dump_stack(); +#endif spin_unlock_irqrestore(&desc->lock, flags); return; } |