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

From	Masami Hiramatsu <mhiramat@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest
Date	2017-06-14 07:00 +0200
Message-ID	<tS8zo-C4-19@gated-at.bofh.it> (permalink)
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On Wed, 14 Jun 2017 11:12:17 +0900
Masami Hiramatsu <mhiramat@kernel.org> wrote:

> Hi Shuah and Steve,
> 
> Sorry for replying so late...
> 
> On Thu, 8 Jun 2017 17:51:44 -0400
> Steven Rostedt <rostedt@goodmis.org> wrote:
> 
> > On Thu, 8 Jun 2017 15:44:08 -0600
> > Shuah Khan <shuahkh@osg.samsung.com> wrote:
> > 
> > > > Also, did you see my reply about having the right config? You have
> > > > HIST_TRIGGERS undefined but yet the histogram trigger tests all pass in
> > > > your report.  
> > > 
> > > I did see that one. Didn't get a chance to look at that yet. Do you expect
> > > the tests to be skipped in this case? Could it be that tests aren't run?
> > > I will look at this and let you know what I find on my test system.
> > 
> > Your first email showed that they passed, which would be hard to do
> > since the feature is not even enabled. ftracetest is very much set up
> > to look at the existing pseudo files to determine if a feature exists
> > or not, and if it does not, it returns "UNSUPPORTED". If it returned
> > PASSED when the feature is not enabled, that would be a big time bug in
> > the test.
> 
> As far as I can see, what Steve you saw was my result on the 4.9 stable
> kernel, which had been compiled with fully ftrace enabled :).
> 
> > > 
> > > > 
> > > > One more thing, is this 100% reproducible. That is, does it always fail?
> > > >   
> > > Failed the two times I tried.
> 
> I've also tried to test the latest linus tree with this series with Shuah's
> config on qemu, and could not reproduced it. (I attached the log)
> As you can see, with Shuah's config, histogram tests are marked UNSUPPORTED.
> 
> Of course, that is 4.12.0-rc5+ and kconfig is a bit tweaked(attached).
> I'll try kselftest tree too.

I've tried it on linux-kselftest/next, but not able to reproduce it...

Thank you,

> 
> Thank you,
> 
> > 
> > Great to hear. I like reproducibility :-)
> > 
> > -- Steve
> > 
> 
> 
> -- 
> Masami Hiramatsu <mhiramat@kernel.org>


-- 
Masami Hiramatsu <mhiramat@kernel.org>

Thread

Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Shuah Khan <shuah@kernel.org> - 2017-06-08 00:50 +0200
  Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Steven Rostedt <rostedt@goodmis.org> - 2017-06-08 01:00 +0200
    Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Steven Rostedt <rostedt@goodmis.org> - 2017-06-08 19:40 +0200
      Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Shuah Khan <shuahkh@osg.samsung.com> - 2017-06-08 22:10 +0200
        Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Steven Rostedt <rostedt@goodmis.org> - 2017-06-08 23:10 +0200
          Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Shuah Khan <shuahkh@osg.samsung.com> - 2017-06-08 23:20 +0200
            Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Steven Rostedt <rostedt@goodmis.org> - 2017-06-08 23:30 +0200
              Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Shuah Khan <shuahkh@osg.samsung.com> - 2017-06-08 23:40 +0200
                Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Steven Rostedt <rostedt@goodmis.org> - 2017-06-08 23:40 +0200
                Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Shuah Khan <shuahkh@osg.samsung.com> - 2017-06-08 23:50 +0200
                Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Steven Rostedt <rostedt@goodmis.org> - 2017-06-09 00:00 +0200
                Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Masami Hiramatsu <mhiramat@kernel.org> - 2017-06-14 07:00 +0200
                Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Shuah Khan <shuah@kernel.org> - 2017-06-14 16:20 +0200
    Re: [PATCH 0/7] selftests/ftrace: Some improvements of ftracetest Steven Rostedt <rostedt@goodmis.org> - 2017-06-08 23:20 +0200

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