From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Tue, 07 Oct 2008 15:50:26 +0200
From: Philippe Gerum <rpm@xenomai.org>
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Subject: Re: [Xenomai-help] Error while building Xenomai on Powerpc with
 instrument function entries enabled
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To: Giammarco Zacheo <g.zacheo@domain.hid>
Cc: xenomai-help <xenomai@xenomai.org>

Giammarco Zacheo wrote:
> It boots either with I-pipe support enabled and disabled.
> 
> I can also boot with latency tracing enabled, if 'Instrument function
> entries' is not enabled.
>

Ok, so back to square #1. It's indeed a problem with mcount() referring to
unmapped memory at early init time. The difference must be in the Efika setup
code, since an Icecube boots fine with the function entry tracing knob on.

> Giammarco
> 
> On Tue, Oct 7, 2008 at 1:45 PM, Philippe Gerum <rpm@xenomai.org
> <mailto:rpm@xenomai.org>> wrote:
> 
>     Philippe Gerum wrote:
>     > Giammarco Zacheo wrote:
>     >> Thank you. There's no hurry actually, just reporting the bug.
>     >>
>     >> If there's something I can do to help...
>     >>
>     >
>     > I have no efika board at hand, but just booted a plain lite5200
>     IceCube
>     > successfully, with all tracing options enabled. This is a
>     DENX-originated kernel
>     > (tagged "DENX-v2.6.26-stable") from the usual place.
>     >
>     > Looking again to the trace output you got, I wonder now if the
>     device tree file
>     > you are using is ok. Could you confirm that your board boots with
>     the I-pipe
>     > support fully disabled?
>     >
> 
>     And if so, does it still boot with the I-pipe support enabled and
>     the I-pipe
>     latency tracing option disabled?
> 
>     --
>     Philippe.
> 
> 


-- 
Philippe.