On Mon, Sep 7, 2009 at 12:20 PM, Jan Blunck<jblunck@xxxxxxx> wrote: > On Sat, Sep 5, 2009 at 5:06 PM, Arnaldo Carvalho de Melo<acme@xxxxxxxxxx> wrote: >> >> I did a quick port to tip/rt/head and couldn't reproduce the problems I >> was experiencing, thanks! >> >> I've put the ported patch series at: >> >> http://userweb.kernel.org/~acme/rostedt-rb-rt >> Besides the problem with the wakeup tracer I see traces with preemptirqsoff that I think are invalid: # tracer: preemptirqsoff # # preemptirqsoff latency trace v1.1.5 on 2.6.31-rc8-rt9-rt_trace # -------------------------------------------------------------------- # latency: 332 us, #4/4, CPU#24 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:32) # ----------------- # | task: -0 (uid:0 nice:0 policy:0 rt_prio:0) # ----------------- # => started at: start_secondary # => ended at: start_secondary # # # _------=> CPU# # / _-----=> irqs-off # | / _----=> need-resched # || / _---=> hardirq/softirq # ||| / _--=> preempt-depth # |||| / # ||||| delay # cmd pid ||||| time | caller # \ / ||||| \ | / <idle>-0 24.N.1 0us : cpu_idle <-start_secondary <idle>-0 24dN.1 1us!: tick_nohz_stop_idle <-tick_nohz_restart_sched_ti ck <idle>-0 24dN.1 332us+: cpu_idle <-start_secondary <idle>-0 24dN.1 336us : trace_preempt_on <-start_secondary I have set kernel.ftrace_enabled = 1 but still not a single function is recorded in tick_nohz_stop_idle(). Any ideas? -- 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
