I have build an 3.18.20 kernel with xenomai 2.6.4 git latest with 
ipipe-core-3.18.20-x86-4.patch on debian jessie amd64 (64bit).

I try to build an version with ipipe tracer.

If I try to boot, I get a call trace : in __ipipe_init_tracer :

RIP __ipipe_tracer_hrclock_initialized


I tried already :

- disabling tracing on boot
- enabling vmalloc'ed trace buffer 
- reducing depth of trace log from 14 to 10

In attachment :

- my latest kernel config
- a screenshot from the call trace

Does anyone have a suggestion what could the problem ? 
I noticed there was an issue with ipipe/tracer: allow hrclock late init 
(http://xenomai.org/pipermail/xenomai/2015-September/035172.html) but f I'm 
correct this patch isĀ  integrated in ipipe-core-3.18.20-x86-4.patch

Kind regards,
Frederik
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