linux-kernel - Re: [PATCHv3] selftests/timers: Turn off timeout setting

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Date:   Thu, 23 Jul 2020 17:01:49 +0800
From:   Po-Hsu Lin <po-hsu.lin@...onical.com>
To:     linux-kselftest@...r.kernel.org
Cc:     shuah <shuah@...nel.org>, sboyd@...nel.org, tglx@...utronix.de,
        John Stultz <john.stultz@...aro.org>, joe.lawrence@...hat.com,
        linux-kernel@...r.kernel.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCHv3] selftests/timers: Turn off timeout setting

(Adding Shuah's linuxfoundation mail)
Hello,
do you need more changes / tests for this test?

Thanks!
Po-Hsu

On Wed, Mar 18, 2020 at 10:42 AM Po-Hsu Lin <po-hsu.lin@...onical.com> wrote:
>
> The following 4 tests in timers can take longer than the default 45
> seconds that added in commit 852c8cbf34d3 ("selftests/kselftest/runner.sh:
> Add 45 second timeout per test") to run:
>   * nsleep-lat - 2m7.350s
>   * set-timer-lat - 2m0.66s
>   * inconsistency-check - 1m45.074s
>   * raw_skew - 2m0.013s
>
> Thus they will be marked as failed with the current 45s setting:
>   not ok 3 selftests: timers: nsleep-lat # TIMEOUT
>   not ok 4 selftests: timers: set-timer-lat # TIMEOUT
>   not ok 6 selftests: timers: inconsistency-check # TIMEOUT
>   not ok 7 selftests: timers: raw_skew # TIMEOUT
>
> Disable the timeout setting for timers can make these tests finish
> properly:
>   ok 3 selftests: timers: nsleep-lat
>   ok 4 selftests: timers: set-timer-lat
>   ok 6 selftests: timers: inconsistency-check
>   ok 7 selftests: timers: raw_skew
>
> https://bugs.launchpad.net/bugs/1864626
> Fixes: 852c8cbf34d3 ("selftests/kselftest/runner.sh: Add 45 second timeout per test")
> Signed-off-by: Po-Hsu Lin <po-hsu.lin@...onical.com>
> ---
>  tools/testing/selftests/timers/Makefile | 1 +
>  tools/testing/selftests/timers/settings | 1 +
>  2 files changed, 2 insertions(+)
>  create mode 100644 tools/testing/selftests/timers/settings
>
> diff --git a/tools/testing/selftests/timers/Makefile b/tools/testing/selftests/timers/Makefile
> index 7656c7c..0e73a16 100644
> --- a/tools/testing/selftests/timers/Makefile
> +++ b/tools/testing/selftests/timers/Makefile
> @@ -13,6 +13,7 @@ DESTRUCTIVE_TESTS = alarmtimer-suspend valid-adjtimex adjtick change_skew \
>
>  TEST_GEN_PROGS_EXTENDED = $(DESTRUCTIVE_TESTS)
>
> +TEST_FILES := settings
>
>  include ../lib.mk
>
> diff --git a/tools/testing/selftests/timers/settings b/tools/testing/selftests/timers/settings
> new file mode 100644
> index 0000000..e7b9417
> --- /dev/null
> +++ b/tools/testing/selftests/timers/settings
> @@ -0,0 +1 @@
> +timeout=0
> --
> 2.7.4
>