Re: sched.c: why -fno-omit-frame-pointer?

[Ingo Molnar]

* Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:

> Adrian Bunk <bunk@xxxxxxxxxx> writes:
> > 
> > Is the -fno-omit-frame-pointer still required for some reason, or is 
> > this a relict that could be removed?
> 
> It's needed so that the WCHAN /proc display can backtrace one level up 
> out of schedule()

it's not just one level - we'll back out until we are in scheduler 
functions (up to 16 levels). So it will back out of io_schedule() and 
other functions as well.

	Ingo
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