The test requires at least two CPUs to exercise the distribution of connections between per-CPU listeners. It currently enforces this prerequisite with an assertion, causing all test cases to fail on single-vCPU systems even though no kernel functionality was tested.
Report the unsupported environment as a skip instead. Check the prerequisite before setting up the network namespace so skipped tests do not make unnecessary system changes. Link: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2023546 Co-authored-by: Copilot <[email protected]> Signed-off-by: Kuba Pawlak <[email protected]> --- tools/testing/selftests/net/so_incoming_cpu.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/net/so_incoming_cpu.c b/tools/testing/selftests/net/so_incoming_cpu.c index 4740701f1..1b7344238 100644 --- a/tools/testing/selftests/net/so_incoming_cpu.c +++ b/tools/testing/selftests/net/so_incoming_cpu.c @@ -81,10 +81,11 @@ static int nr_client_per_server, nr_server, nr_client; FIXTURE_SETUP(so_incoming_cpu) { - setup_netns(_metadata); - nr_server = get_nprocs(); - ASSERT_LE(2, nr_server); + if (nr_server < 2) + SKIP(return, "requires at least two CPUs"); + + setup_netns(_metadata); if (NR_CLIENT_PER_SERVER_DEFAULT * nr_server < NR_PORT) nr_client_per_server = NR_CLIENT_PER_SERVER_DEFAULT; -- 2.43.0
