From 70edcd77a0d6d0f8731c826764f5eb6732f521e9 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 30 Jan 2008 13:33:24 +0100 Subject: [PATCH] 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 Signed-off-by: Thomas Gleixner --- kernel/irq/manage.c | 3 +++ 1 file changed, 3 insertions(+) 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; } -- 2.20.1