Can not free irq 0

Hi...

On Sat, Aug 27, 2011 at 22:23, Parmenides [off-list ref] wrote:

? ?I wonder how an interrupt handler work, and so try to make one by
myself. The first problem is which irq number should I select to hook
an interrupt handler on it. In terms of the following messages, I
think irq 0 can be adopted because the number of interrupts raised
remains 145 and does not increase any more.

are you really sure? in my system (laptop with core duo cpu) it is
increased by around 1000-2000 every 2 seconds and AFAIK it is using
HPET.

So maybe IMO free_irq() is causing your cpu referencing null
instruction...that might be due to free_irq is not checking whether it
is safe to delete a handler....

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com