Re: [PATCH] selftests/filesystems/binderfs: Skip tests if user namespaces are unavailable

On 8/7/25 07:45, Wake Liu wrote:

The binderfs selftests, specifically `binderfs_stress` and `binderfs_test_unprivileged`, depend on user namespaces to run.

On kernels built without user namespace support (CONFIG_USER_NS=n), these tests will fail.

Why not add CONFIG_USER_NS to config file instead to indicate the dependency.

tools/testing/selftests/filesystems/binderfs/config which has these as dependencies at the moment.

CONFIG_ANDROID_BINDERFS=y CONFIG_ANDROID_BINDER_IPC=y

To prevent these failures, add a check for the availability of user namespaces by testing for the existence of "/proc/self/ns/user". If the check fails, skip the tests and print an informative message.]

Can you try adding the dependency first?

thanks, -- Shuah