twister: sometimes the twister fails because the error configparser.NoSectionError: No section: 'manifest'

[wangnuannuan]

Describe the bug

Sometimes the twister fails because the error configparser.NoSectionError: No section: 'manifest'

CMake Error at /slowfs/ru20arcjenkins/de02-arcjenkins2/slaves/ru20-gp-srv-linux03/workspace/arcoss_verification/sandbox_jingru/testing_jobs/zephyr_verification/sanity_check/zephyr/cmake/zephyr_module.cmake:63 (message):
  Traceback (most recent call last):

    File "/depot/Python/Python-3.7.0/lib/python3.7/site-packages/west/manifest.py", line 172, in _mpath
      path = cp.get('manifest', 'path')
    File "/depot/Python/Python-3.7.0/lib/python3.7/configparser.py", line 780, in get
      d = self._unify_values(section, vars)
    File "/depot/Python/Python-3.7.0/lib/python3.7/configparser.py", line 1146, in _unify_values
      raise NoSectionError(section) from None
configparser.NoSectionError: No section: 'manifest'

That's because the specific platform will call west command, which will try to modify the config file .west/config. Take nsim_hs_smp as example, the twister will call west command at

zephyr/scripts/pylib/twister/twisterlib.py

Line 520 in 8826008

command = ["west", "flash", "--skip-rebuild", "-d", self.build_dir]

.

The contents of config are:

[manifest]
path = zephyr-downstream
file = west.yml

https://github.com/zephyrproject-rtos/west/blob/main/src/west/app/main.py#L406. The west flash will modify it's contents as:

[manifest]
path = zephyr-downstream
file = west.yml
[zephyr]
base = zephyr

Because the twister run this command with multiple processes, so I guess there are race when ·twister· call this command, then the file is not modified successfully due to multi-process race.

I found that west tool will update the contents of .west/config at

1. west extension commands(build, flash...) https://github.com/zephyrproject-rtos/west/blob/21a478e3c87f6c910aa8b293ee50f7c8480273e6/src/west/app/main.py#L703, this may affect twister
2. west init command https://github.com/zephyrproject-rtos/west/blob/main/src/west/app/project.py#L230, https://github.com/zephyrproject-rtos/west/blob/main/src/west/app/project.py#L299
3. west config command

[cfriedt]

@nashif - looks like this was not fixed in the linked PR - what's happening?

[nashif]

fixed in #38325