linux-kernel - wakeup tracer not able to capture traces on 3.4 kernel

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Message-ID: <CAJ_BOiB6E4D-Y45VZTOGqhYMs_FG8UTpGnNdzjdj3nEP13A=3g@mail.gmail.com>
Date:	Thu, 29 Aug 2013 19:41:28 +0530
From:	Prabhat Kumar Ravi <prabhatravi09@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: wakeup tracer not able to capture traces on 3.4 kernel

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
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