linux-kernel - Re: [PATCH v3 0/5] Fix nits in the kunit

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Message-ID: <68b23584-c82f-68b7-f428-5b6a0738e072@amazon.com>
Date:   Thu, 5 Dec 2019 10:44:34 +0100
From:   <sjpark@...zon.com>
To:     SeongJae Park <sj38.park@...il.com>,
        Brendan Higgins <brendanhiggins@...gle.com>
CC:     Jonathan Corbet <corbet@....net>,
        KUnit Development <kunit-dev@...glegroups.com>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>, shuah <shuah@...nel.org>,
        SeongJae Park <sjpark@...zon.de>
Subject: Re: [PATCH v3 0/5] Fix nits in the kunit

On 04.12.19 21:28, SeongJae Park wrote:
> On Wed, Dec 4, 2019 at 9:25 PM SeongJae Park <sj38.park@...il.com> wrote:
>> On Wed, Dec 4, 2019 at 8:21 PM Brendan Higgins
>> <brendanhiggins@...gle.com> wrote:
>>> On Tue, Dec 03, 2019 at 02:41:26PM -0800, Brendan Higgins wrote:
>>>> On Tue, Dec 3, 2019 at 10:08 AM SeongJae Park <sj38.park@...il.com> wrote:
>>>>> This patchset contains trivial fixes for the kunit documentations and the
>>>>> wrapper python scripts.
>>>>>
>>>>> Changes from v2 (https://lore.kernel.org/linux-kselftest/1575361141-6806-1-git-send-email-sj38.park@gmail.com/T/#t):
>>>>>  - Make 'build_dir' if not exists (missed from v3 by mistake)
>>>>>
>>>>> SeongJae Park (5):
>>>>>   docs/kunit/start: Use in-tree 'kunit_defconfig'
>>>>>   kunit: Remove duplicated defconfig creation
>>>>>   kunit: Create default config in '--build_dir'
>>>>>   kunit: Place 'test.log' under the 'build_dir'
>>>>>   kunit: Rename 'kunitconfig' to '.kunitconfig'
>>>>>
>>>>>  Documentation/dev-tools/kunit/start.rst | 13 +++++--------
>>>>>  tools/testing/kunit/kunit.py            | 16 ++++++++++------
>>>>>  tools/testing/kunit/kunit_kernel.py     |  8 ++++----
>>>>>  3 files changed, 19 insertions(+), 18 deletions(-)
>>>> Tested-by: Brendan Higgins <brendanhiggins@...gle.com>
>>> I just realized that I forgot to test for something...
>>>
>>> The following command fails:
>>>
>>> ./tools/testing/kunit/kunit.py run --timeout=60 --jobs=12 --defconfig
>>>
>>> [11:17:13] Building KUnit Kernel ...
>>> [11:17:16] Starting KUnit Kernel ...
>>> Traceback (most recent call last):
>>>   File "tools/testing/kunit/kunit.py", line 142, in <module>
>>>     main(sys.argv[1:])
>>>   File "tools/testing/kunit/kunit.py", line 135, in main
>>>     result = run_tests(linux, request)
>>>   File "tools/testing/kunit/kunit.py", line 67, in run_tests
>>>     test_result = kunit_parser.parse_run_tests(kunit_output)
>>>   File "/usr/local/google/home/brendanhiggins/gbmc-linux/tools/testing/kunit/kunit_parser.py", line 283, in parse_run_tests
>>>     test_result = parse_test_result(list(isolate_kunit_output(kernel_output)))
>>>   File "/usr/local/google/home/brendanhiggins/gbmc-linux/tools/testing/kunit/kunit_parser.py", line 54, in isolate_kunit_output
>>>     for line in kernel_output:
>>>   File "/usr/local/google/home/brendanhiggins/gbmc-linux/tools/testing/kunit/kunit_kernel.py", line 146, in run_kernel
>>>     with open(os.path.join(build_dir, 'test.log'), 'w') as f:
>>>   File "/usr/lib/python3.7/posixpath.py", line 80, in join
>>>     a = os.fspath(a)
>>> TypeError: expected str, bytes or os.PathLike object, not NoneType
>>>
>>> It seems as though you assume that build_dir is always populated by the flag.
>> Sorry for not checking the case.  The 4th patch, "kunit: Place 'test.log' under
>> the 'build_dir'" made the bug.  I fixed the 4th patch and tested with below
>> commands:
>>
>>     ./tools/testing/kunit/kunit.py run --timeout=60 --jobs=12
>> --defconfig --build_dir .kunit
>>     ./tools/testing/kunit/kunit.py run --timeout=60 --jobs=12 --defconfig
>>
>> Just sent the 4th version patchset including the fix:
>>     http://lkml.kernel.org/r/1575490683-13015-1-git-send-email-sj38.park@gmail.com
> Also, removed the 'Reviewed-by' from the 4th patch and didn't add 'Tested-by'
> to the patchset.
>
>
> Thanks,
> SeongJae Park
>
>> I will consider adding some tests that can check such cases in the
>> 'kunit_tools_test.py' later.

I just sent 5th version which includes this change and a fix:
https://lore.kernel.org/linux-kselftest/20191205093440.21824-1-sjpark@amazon.com


Thanks,
SeongJae Park

>>
>>
>> Thanks,
>> SeongJae Park