linux-kernel - Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest

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Date:   Thu, 8 Jun 2017 17:11:57 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Shuah Khan <shuahkh@....samsung.com>
Cc:     Shuah Khan <shuah@...nel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        linux-kselftest@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest

On Wed, 7 Jun 2017 17:01:08 -0600
Shuah Khan <shuahkh@....samsung.com> wrote:

> >>> [29] event trigger - test histogram trigger     [PASS]
> >>> [30] event trigger - test multiple histogram triggers   [PASS]
> >>> [31] event trigger - test snapshot-trigger      [PASS]
> >>> [32] event trigger - test stacktrace-trigger    [PASS]
> >>> [33] event trigger - test traceon/off trigger   [PASS]
> >>> [34] (instance)  Basic test for tracers [PASS]
> >>> [35] (instance)  Basic trace clock test [PASS]
> >>> [36] (instance)  event tracing - enable/disable with event level files  [PASS]
> >>> [37] (instance)  event tracing - restricts events based on pid  [PASS]
> >>> [38] (instance)  event tracing - enable/disable with subsystem level files      [PASS]
> >>> [39] (instance)  ftrace - test for function event triggers      [UNSUPPORTED]
> >>> [40] (instance)  ftrace - test for function traceon/off triggers        [UNSUPPORTED]
> >>> [41] (instance)  event trigger - test event enable/disable trigger      [PASS]
> >>> [42] (instance)  event trigger - test trigger filter    [PASS]
> >>> [43] (instance)  event trigger - test histogram modifiers       [PASS]
> >>> [44] (instance)  event trigger - test histogram trigger [PASS]
> >>> [45] (instance)  event trigger - test multiple histogram triggers       [PASS]

Are you sure you sent me the right config?

CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_FTRACE_MCOUNT_RECORD=y
# CONFIG_FTRACE_STARTUP_TEST is not set
CONFIG_MMIOTRACE=y
# CONFIG_HIST_TRIGGERS is not set

HIST_TRIGGERS is not set in your config, which should have made the
histogram trigger tests return UNSUPPORTED.

-- Steve