tests/subsys/fs/fat_fs_api - test_fat_mount results into assertion failure on Arduino_101 - FS init failed (-19)

[pswarnak]

The test tests/subsys/fs/fat_fs_api results in Assertion failure in test_fat_mount sub-test case.

Arch: x86
Board: arduino_101
Zephyr commit: c738834.

Error Console Log:

***** Booting Zephyr OS v1.12.0-284-gc738834 *****
Running test suite fat_fs_basic_test
===================================================================
starting test - test_fat_mount
ASSERTION FAIL [(res == FR_OK)] @ zephyr/subsys/fs/fat_fs.c:333:
        FS init failed (-19)

Steps to reproduce:

cd zephyr/tests/subsys/fs/fat_fs_api/
rm -rf build && mkdir build && cd build
cmake -D BOARD=arduino_101 ../
make BOARD=arduino_101 flash

Check the console log.

[pswarnak]

Additional information:
As per "git bisect", the commit resulting into this test failure is 2fe5199 by @tbursztyka.
By reverting the mentioned commit, test could pass as expected.

[ramakrishnapallala]

@pswarnak can you update the status? is it same as before?

[pswarnak]

Hi @ramakrishnapallala,

The test still fails on ARDUINO_101/x86 with the same error signature:

***** delaying boot 1000ms (per build configuration) *****
***** Booting Zephyr OS v1.9.0-rc1-6413-gef93589 (delayed boot 1000ms) *****
Running test suite fat_fs_basic_test
===================================================================
starting test - test_fat_mount
ASSERTION FAIL [(res == FR_OK)] @ /home/pswarnak/workspace/1.13_zephyr/subsys/fs/fat_fs.c:333:
        FS init failed (-19)

[pswarnak]

@ramakrishnapallala: Status update:
Rechecked commit resulting into this test failure, it still points to 2fe5199 by @tbursztyka.

# first bad commit: [2fe51996db89c3e941134178b50c2c6982f9b5c7] drivers/flash: Remove irrelevant option in w25qxxdv driver

[ramakrishnapallala]

@tbursztyka can you look into this issue ?

[nashif]

@SavinayDharmappa can you please take a look at this while @ramakrishnapallala and @tbursztyka are out?