Hi Steven, Something seems to be missing in 2.6.24-pre7-rt1-pre1; when I switch on the latency tracer in a powerpc32 project, I get this: kernel/sysctl.c:425: error: 'preempt_max_latency_us' undeclared here (not in a function) kernel/sysctl.c:433: error: 'preempt_thresh_us' undeclared here (not in a function) rsc@octopus:linux-2.6.24-rc7> g preempt_max_latency_us ./kernel/sysctl.c: .data = &preempt_max_latency_us, ./kernel/sysctl.c: .maxlen = sizeof(preempt_max_latency_us), ./kernel/latency_trace.c: __preempt_max_latency = usecs_to_cycles(preempt_max_latency_us); Any patch missign? Robert -- Robert Schwebel | http://www.pengutronix.de OSADL Testlab @ Pengutronix | http://www.osadl.org - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html