Can kernel.statement access the function argument?

Frank Ch. Eigler fche@redhat.com
Mon Apr 11 17:40:00 GMT 2011


voyager1983 <wang.yongzhi2009@gmail.com> writes:

> What I am about to probe is actually the statement   
> ret = action->handler(irq, action->dev_id);
> [...]
> stap -L 'kernel.statement("handle_IRQ_event@kernel/irq/handle.c:376")'
> It returns nothing.

That's partly because the handle_IRQ_event function is blacklisted due
to some historical incompatibility with kernel kprobes.  You may try
again with stap -g ...

- FChE



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