linux-kernel - Re: [PATCH 2/2] ftracetest: Add --verbose option for showing echo output

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Message-ID: <5481414B.5090805@hitachi.com>
Date:	Fri, 05 Dec 2014 14:23:23 +0900
From:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Theodore Tso <tytso@....edu>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH 2/2] ftracetest: Add --verbose option for showing echo
 output

(2014/12/05 14:08), Namhyung Kim wrote:
> On Thu, Dec 04, 2014 at 02:41:23PM -0500, Masami Hiramatsu wrote:
>> Add --verbose/-v option for showing echo output in testcases.
>> This is good for checking the progress of testcases which
>> take a longer time to run.
>>
>> To implement this feature, all the testcase failures are
>> captured in ftracetest and send signal to set SIG_RESULT=FAIL.
>>
>> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
>> ---
> 
> [SNIP]
>> -  # setup PID and PPID, $$ is not updated.
>> -  (cd $TRACING_DIR; read PID _ < /proc/self/stat ;
>> -   set -e; set -x; . $1) >> $testlog 2>&1
>> -  eval_result $? $SIG_RESULT
>> +  if [ $VERBOSE -ne 0 ]; then
>> +    __run_test $1 2>> $testlog | tee -a $testlog
> 
> Shouldn't it be
> 
>        __run_test $1 2>&1 | tee -a $testlog
> 
> ?

No, that outputs both stdout and stderr to $testlog and console.
What I'd like to do above is only stdout to $testlog and console and
stderr goes only to $testlog. (Note that __run_test set -x which outputs
every executed command to stderr)

Thank you,

> 
> Thanks,
> Namhyung
> 
> 
>> +  else
>> +    __run_test $1 >> $testlog 2>&1
>> +  fi
>> +  eval_result $SIG_RESULT
>>    if [ $? -eq 0 ]; then
>>      # Remove test log if the test was done as it was expected.
>>      [ $KEEP_LOG -eq 0 ] && rm $testlog
> 


-- 
Masami HIRAMATSU
Software Platform Research Dept. Linux Technology Research Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@...achi.com


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