linux-kernel - Re: [PATCHv2] selftests/timers: Turn off timeout setting

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Date:   Fri, 13 Mar 2020 11:41:23 -0600
From:   shuah <shuah@...nel.org>
To:     Po-Hsu Lin <po-hsu.lin@...onical.com>,
        linux-kselftest@...r.kernel.org
Cc:     sboyd@...nel.org, tglx@...utronix.de, john.stultz@...aro.org,
        joe.lawrence@...hat.com, linux-kernel@...r.kernel.org,
        shuah <shuah@...nel.org>
Subject: Re: [PATCHv2] selftests/timers: Turn off timeout setting

On 2/25/20 9:57 AM, Po-Hsu Lin wrote:
> The following 4 tests in timers can take longer than the default 45
> seconds that added in commit 852c8cbf (selftests/kselftest/runner.sh:
> Add 45 second timeout per test) to run:

Please use the commit format:

commit 852c8cbf34d3 ("selftests/kselftest/runner.sh: Add 45 second 
timeout per test")

>    * 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
Please add Fixes tag with commit 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
> 

thanks,
-- Shuah