linux-kernel - Re: [PATCH v4 7/8] tracing/selftests: Add tests for hist trigger expression parsing

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Date:   Wed, 27 Oct 2021 12:14:20 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Kalesh Singh <kaleshsingh@...gle.com>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        Masami Hiramatsu <mhiramat@...nel.org>, surenb@...gle.com,
        hridya@...gle.com, namhyung@...nel.org, kernel-team@...roid.com,
        Jonathan Corbet <corbet@....net>,
        Ingo Molnar <mingo@...hat.com>, Shuah Khan <shuah@...nel.org>,
        Tom Zanussi <zanussi@...nel.org>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v4 7/8] tracing/selftests: Add tests for hist trigger
 expression parsing

Hi Kalesh,

On Tue, 26 Oct 2021 18:15:34 -0700
Kalesh Singh <kaleshsingh@...gle.com> wrote:

> On Tue, Oct 26, 2021 at 5:20 PM Steven Rostedt <rostedt@...dmis.org> wrote:
> >
> > On Tue, 26 Oct 2021 16:36:03 -0700
> > Kalesh Singh <kaleshsingh@...gle.com> wrote:
> >
> > > On my setup I without any of the changes applied (config hist triggers enabled):
> > >
> > > ./ftracetests
> > >
> > > # of passed:  41
> > > # of failed:  40
> > > # of unresolved:  0
> > > # of untested:  0
> > > # of unsupported:  32
> > > # of xfailed:  0
> > > # of undefined(test bug):  0
> > >
> > > Do all the tests pass for you, before any of the changes in this
> > > series? Maybe some of the tests need updating?
> >
> > All my tests past, and I don't push any code if they fail.
> >
> > I'd like to understand why you have these failures. Are the test from
> > the kernel you are testing?
> 
> The results are from the kernel before I apply any of the patches. I
> am testing on an Android emulator (cuttlefish) with 5.15.0-rc6 kernel.
> The tests clearly work so it must be something on my end. I'll
> investigate and get back to you.

Interesting. There should be test logs under logs/ directory in the
ftracetest. Can you share the logs/*/ftracetest.log and your kernel kconfig?

Thank you,


-- 
Masami Hiramatsu <mhiramat@...nel.org>