On 2011-09-23 15:58, Jean-Michel Hautbois wrote: > 2011/9/23 Gilles Chanteperdrix <gilles.chanteperd...@xenomai.org> > >> On 09/23/2011 11:49 AM, Jean-Michel Hautbois wrote: >>> OK, I have more traces (a few :)) : >> >> I meant the I-pipe tracer alone. The I-pipe tracer intead of other >> ftrace tracers. >> >> > Well, I think it works, I can do a cat /proc/ipipe/trace/max without any > error in a kernel which doesn't have any other ftrace function. > Do you have one test in particular in mind ?
Check http://git.kiszka.org/?p=ipipe.git;a=shortlog;h=refs/heads/queues/2.6.35-x86-trace to get an impression of what is required to get ftrace working on x86_64. It is not working on x86_32 e.g. as it depends on the arch providing a NMI-safe, ie. task-stack independent current_thread_info(). That is also not yet the case on Power. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
