Re: [PATCH] kunit: Fix '--build_dir' option

[Brendan Higgins]

On Fri, Sep 6, 2019 at 7:33 PM shuah <shuah@xxxxxxxxxx> wrote:
>
> On 9/6/19 7:16 PM, Brendan Higgins wrote:
> > On Fri, Sep 6, 2019 at 9:12 AM SeongJae Park <sj38.park@xxxxxxxxx> wrote:
> >>
> >> Running kunit with '--build_dir' option gives following error message:
> >>
> >> ```
> >> $ ./tools/testing/kunit/kunit.py run --build_dir ../linux.out.kunit/
> >> [00:57:24] Building KUnit Kernel ...
> >> [00:57:29] Starting KUnit Kernel ...
> >> Traceback (most recent call last):
> >>    File "./tools/testing/kunit/kunit.py", line 136, in <module>
> >>      main(sys.argv[1:])
> >>    File "./tools/testing/kunit/kunit.py", line 129, in main
> >>      result = run_tests(linux, request)
> >>    File "./tools/testing/kunit/kunit.py", line 68, in run_tests
> >>      test_result = kunit_parser.parse_run_tests(kunit_output)
> >>    File "/home/sjpark/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 "/home/sjpark/linux/tools/testing/kunit/kunit_parser.py", line
> >> 54, in isolate_kunit_output
> >>      for line in kernel_output:
> >>    File "/home/sjpark/linux/tools/testing/kunit/kunit_kernel.py", line
> >> 145, in run_kernel
> >>      process = self._ops.linux_bin(args, timeout, build_dir)
> >>    File "/home/sjpark/linux/tools/testing/kunit/kunit_kernel.py", line
> >> 69, in linux_bin
> >>      stderr=subprocess.PIPE)
> >>    File "/usr/lib/python3.5/subprocess.py", line 947, in __init__
> >>      restore_signals, start_new_session)
> >>    File "/usr/lib/python3.5/subprocess.py", line 1551, in _execute_child
> >>      raise child_exception_type(errno_num, err_msg)
> >> FileNotFoundError: [Errno 2] No such file or directory: './linux'
> >> ```
> >>
> >> This error occurs because the '--build_dir' option value is not passed
> >> to the 'run_kernel()' function.  Consequently, the function assumes
> >> the kernel image that built for the tests, which is under the
> >> '--build_dir' directory, is in kernel source directory and finally raises
> >> the 'FileNotFoundError'.
> >>
> >> This commit fixes the problem by properly passing the '--build_dir'
> >> option value to the 'run_kernel()'.
> >>
> >> Signed-off-by: SeongJae Park <sj38.park@xxxxxxxxx>
> >
> > Reviewed-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
> > Tested-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
> >
> > Thanks!
> >
>
> Thanks Brendan! I will apply the patch for 5.4-rc1.

Shuah, can you apply this to the kselftest KUnit branch? This should
not require a resend.