Hi, I have compiled and installed Xenomai and am able to boot from the Xenomai kernel. when running the latency test I get: Xenomai: native skin or CONFIG_XENO_OPT_PERVASIVE disabled. (modprobe xeno_native?) linux 2.6.25, xeno 2.4.4 It seems that APIC is not starting. I have tried lapic parameter in the GRUB but still the same? Any ideas please? Dehann