On Sat, 2010-12-25 at 16:04 -0500, Steven Rostedt wrote:

Note, when CONFIG_IRQSOFF_TRACE is set, there's already a bit of
overhead :-)

Anyway, I'll have to take a look at how the frame pointer is set up.
Or
we could also set up all stacks coming into the kernel to have a
"dummy"
frame pointer that wont hurt anything if we index into it.

Anyway, I'm off till the new year, so I'll worry about it then ;-)

Right, might be simpler to just make them loop back onto themselves or
something like that. I can have a look too if I get a chance.

Cheers,
Ben.