[Xenomai] Xenomai latency test hang

Raimarius Delgado raim223 at seoultech.ac.kr
Fri Oct 7 02:52:03 CEST 2016

On 2016-10-06 오후 10:45, Henning Schild wrote:
> The problem is caused by the Intel SMAP feature of your CPU. It is
> fixed - at least partially - in Xenomai 3. For further details read the
> Mailing list archive, this topic was just discussed.
> A quick solution to your current problem is disabling CONFIG_X86_SMAP
> in your kernel config or booting the kernel with "nosmap"
> Henning
> Am Thu, 6 Oct 2016 21:06:26 +0900
> schrieb Raimarius Delgado <raim223 at seoultech.ac.kr>:
>> Hi,
>> I have installed Xenomai 2.6.4 alongside Linux 3.14.17, 3.14.39, and
>> 3.14.44 on Ubuntu 14.04. I encountered a problem when I try to run
>> the latency test, the system hangs with no output if run in user
>> space and abruptly ends (killed) if run in kernel space.
>> I've seen a similar thread in:
>> http://www.xenomai.org/pipermail/xenomai/2015-July/034658.html but
>> there was no solution offered to this problem. All the kernel version
>> sub-levels demonstrated the same results.
>> I am working on an Intel Core i7 6700 (Skylake) on a Gigabyte
>> GA-B150M-HD3. I am attaching the kernel log files and configurations
>> for 3.14.39 and 3.14.44. I have used ipipe-core-3.14.17-x86-6,
>> ipipe-core-3.14.39-x86-9, and ipipe-core-3.14.44-x86-12, respectively.
>> Hope somebody could help me. Thanks in advance.
Thank you that really solved the problem. I got tunnel visioned by the 
Xenomai version and was not able to consider reading similar problems on 
the cobalt core. I will be more productive by reading the mailing list 
archive and try to help the community.
Again ,Thank you very much.

Raimarius Delgado, M.Sc.Eng. (레임)
Embedded Systems Laboratory
Seoul National University of Science and Technology
Dept. of Electrical and Information Engineering
Phone: +82-2-970-9868
Mobile: +82-10-2129-4987

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