linux-kernel - Re: [PATCH] selftests: Fix loss of test output in run

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Date:   Tue, 16 Jan 2018 09:34:54 -0700
From:   Shuah Khan <shuahkh@....samsung.com>
To:     Michael Ellerman <mpe@...erman.id.au>, linux-kernel@...r.kernel.org
Cc:     jbacik@...com, linux-kselftest@...r.kernel.org,
        shuah Khan <shuahkh@....samsung.com>
Subject: Re: [PATCH] selftests: Fix loss of test output in run_kselftests.sh

On 01/15/2018 11:10 PM, Michael Ellerman wrote:
> Commit fbcab13d2e25 ("selftests: silence test output by default")
> changed the run_tests logic as well as the logic to generate
> run_kselftests.sh to redirect test output away from the console.
> 
> As discussed on the list and at kernel summit, this is not a desirable
> default as it means in order to debug a failure the console output is
> not sufficient, you also need access to the test machine to get the
> full test logs. Additionally it's impolite to write directly to
> /tmp/$TEST_NAME on shared systems.
> 
> The change to the run_tests logic was reverted in commit
> a323335e62cc ("selftests: lib.mk: print individual test results to
> console by default"), and instead a summary option was added so that
> quiet output could be requested.
> 
> However the change to run_kselftests.sh was left as-is.
> 
> This commit applies the same logic to the run_kselftests.sh code, ie.
> the script now takes a "--summary" option which suppresses the output,
> but shows all output by default.
> 
> Additionally instead of writing to /tmp/$TEST_NAME the output is
> redirected to the directory where the generated test script is
> located.
> 
> Fixes: fbcab13d2e25 ("selftests: silence test output by default")
> Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
> ---
>  tools/testing/selftests/Makefile | 9 ++++++++-
>  tools/testing/selftests/lib.mk   | 2 +-
>  2 files changed, 9 insertions(+), 2 deletions(-)

Thanks for catching this. Applied to linux-kselftest next

thanks,
-- Shuah