wakeup tracer not able to capture traces on 3.4 kernel

[Prabhat Kumar Ravi]

Hi,

I trying to capture traces through wakeup tracer, but not able to
capture it on 3.4 kernel with cortex A9 processor, armv7.
{{{
/ # mount -t debugfs nodev /debug
/ # sysctl kernel.ftrace_enabled=1
kernel.ftrace_enabled = 1
/ # echo wakeup > /debug/tracing/current_tracer
/ # echo latency-format > /debug/tracing/trace_options
/ # echo 0 > /debug/tracing/tracing_max_latency
/ # echo 1 > /debug/tracing/tracing_on
/ # sleep 10
/ # echo 0 > /debug/tracing/tracing_on
/ # cat /debug/tracing/trace
# tracer: wakeup
#
}}}

Please suggest me where I am wrong.

Regards,
Prabhat
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/