From: Masami Hiramatsu <mhiramat@kernel.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Shuah Khan <shuah@kernel.org>,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
Tom Zanussi <tom.zanussi@linux.intel.com>,
Li Philip <philip.li@intel.com>,
Liu Yiding <yidingx.liu@intel.com>
Subject: Re: [PATCH 3/3] selftests/ftrace: Use /bin/echo instead of built-in echo
Date: Fri, 8 May 2020 00:50:28 +0900 [thread overview]
Message-ID: <20200508005028.a825d53373721a13d6cc80fc@kernel.org> (raw)
In-Reply-To: <20200507091207.5c3b1a92@gandalf.local.home>
On Thu, 7 May 2020 09:12:07 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:
> On Sat, 2 May 2020 12:08:42 +0900
> Masami Hiramatsu <mhiramat@kernel.org> wrote:
>
> > > > diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-hist.tc
> > > > index ab6bedb25736..b3f70f53ee69 100644
> > > > --- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-hist.tc
> > > > +++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-hist.tc
> > > > @@ -30,7 +30,7 @@ fi
> > > >
> > > > echo "Test histogram trace_marker tigger"
> > > >
> > > > -echo 'hist:keys=common_pid' > events/ftrace/print/trigger
> > > > +echo 'hist:keys=ip' > events/ftrace/print/trigger
> > >
> > > This is doing more than just changing the echo being used. It's changing
> > > the test being done.
> >
> > Yes, I need Tom's review for this change. As far as I can test, this
> > fixes the test failure. If this isn't acceptable, we can use "alias echo=echo"
> > for this test case.
> >
>
> I still don't see how changing "keys=common_pid" to "keys=ip" has anything
> to do with the echo patch. If that is a problem, it should be a different
> patch with explanation to why "keys=common_pid" is broken.
This test case uses a trace_marker event to make a histogram with
the common_pid key, and it expects the "echo" command is built-in command
so that the pid is same while writing several events to trace_marker.
I changed it to "ip" which is always same if trace_marker interface is
used.
Thank you,
>
> -- Steve
>
--
Masami Hiramatsu <mhiramat@kernel.org>
next prev parent reply other threads:[~2020-05-07 15:50 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-01 13:37 [PATCH 0/3] selftests/ftrace: Fix ftracetest testcases for dash, etc Masami Hiramatsu
2020-05-01 13:37 ` [PATCH 1/3] selftests/ftrace: Make XFAIL green color Masami Hiramatsu
2020-05-01 14:15 ` Steven Rostedt
2020-05-01 13:37 ` [PATCH 2/3] selftests/ftrace: Pick only the first kprobe event to test Masami Hiramatsu
2020-05-01 14:17 ` Steven Rostedt
2020-05-01 15:38 ` shuah
2020-05-01 16:20 ` Steven Rostedt
2020-05-01 16:30 ` Shuah Khan
2020-05-02 3:05 ` Masami Hiramatsu
2020-05-01 13:38 ` [PATCH 3/3] selftests/ftrace: Use /bin/echo instead of built-in echo Masami Hiramatsu
2020-05-01 14:19 ` Steven Rostedt
2020-05-02 3:08 ` Masami Hiramatsu
2020-05-07 13:12 ` Steven Rostedt
2020-05-07 15:50 ` Masami Hiramatsu [this message]
2020-05-07 17:25 ` Steven Rostedt
2020-05-07 20:32 ` Zanussi, Tom
2020-05-08 7:11 ` Masami Hiramatsu
2020-05-07 6:45 ` Xiao Yang
2020-05-07 9:15 ` Masami Hiramatsu
2020-05-11 7:22 ` Xiao Yang
2020-05-11 9:27 ` Masami Hiramatsu
2020-05-11 10:34 ` David Laight
2020-05-11 12:01 ` [PATCH] selftests/ftrace: Use /bin/echo for backslash included command Masami Hiramatsu
2020-05-11 12:19 ` Andreas Schwab
2020-05-11 13:36 ` [PATCH v2] selftests/ftrace: Use printf " Masami Hiramatsu
2020-05-11 13:38 ` Masami Hiramatsu
2020-05-11 13:46 ` David Laight
2020-05-11 14:05 ` Masami Hiramatsu
2020-05-11 14:59 ` David Laight
2020-05-11 20:28 ` Steven Rostedt
2020-05-11 13:42 ` Andreas Schwab
2020-05-11 13:58 ` Masami Hiramatsu
2020-05-25 9:59 ` Masami Hiramatsu
2020-05-28 16:24 ` Shuah Khan
2020-05-07 9:22 ` [PATCH 3/3] selftests/ftrace: Use /bin/echo instead of built-in echo Andreas Schwab
2020-05-07 15:52 ` Masami Hiramatsu
2020-05-01 14:21 ` [PATCH 0/3] selftests/ftrace: Fix ftracetest testcases for dash, etc Steven Rostedt
2020-05-01 14:28 ` Shuah Khan
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