Hi, This series addresses several issues in the networking kselftests that cause false-positive failures depending on the host environment, kernel configuration, or library versions.
The main focus of these changes is to isolate tests from the host environment (using namespaces) and to ensure proper fallback or skipping when dependencies are missing. Summary of changes: 1. Adds a check for cls_basic module in fib_tests. Without this module, the test fails when attempting to add tc rules instead of skipping. 2. Fixes ovs-dpctl.py to return a non-zero exit code when pyroute2 is too old. This allows pmtu.sh to correctly fall back to ovs-vsctl instead of assuming the configuration was successful. 3,4,5. Move reuseport test into dedicated network namespaces. This prevents failures caused by port conflicts with host processes or interference from host firewall rules. 6. Ensures io_uring is enabled via sysctl before running io_uring_zerocopy test, preventing failures on systems where kernel.io_uring_disabled is set. Signed-off-by: Aleksei Oladko <[email protected]> Changes in v2: - Fixed a typo by adding the missing backslash in Makefile - Added a Fixes: tag to the appropriate commit as requested - Link to v1: https://lore.kernel.org/linux-kselftest/[email protected] Changes in v3: - renamed pmtu.sh to pmtu-test.sh and used pmtu.sh as the name of the wrapper. - since the test now runs in a dedicated netns, updates the ovs test case to correctly move network interfaces into the target namespace. - Link to v2: https://lore.kernel.org/linux-kselftest/[email protected]/T/#t Aleksei Oladko (4): selftests: net: fib_tests: skip rp_filter test if cls_basic is unavailable selftests: net: make ovs-dpctl.py fail when pyroute2 is unsupported selftests: net: rename pmtu.sh to pmtu-test.sh selftests: net: io_uring_zerocopy: enable io_uring for the test Konstantin Khorenko (2): selftests: net: run reuseport tests in netns to avoid port conflicts selftests: net: run pmtu.sh in netns to avoid host firewall interference tools/testing/selftests/net/Makefile | 13 +- tools/testing/selftests/net/fib_tests.sh | 2 + .../selftests/net/io_uring_zerocopy_tx.sh | 9 + .../selftests/net/openvswitch/ovs-dpctl.py | 2 +- tools/testing/selftests/net/pmtu-test.sh | 2492 +++++++++++++++++ tools/testing/selftests/net/pmtu.sh | 2492 +---------------- tools/testing/selftests/net/reuseport_bpf.sh | 4 + .../selftests/net/reuseport_bpf_cpu.sh | 4 + .../selftests/net/reuseport_bpf_numa.sh | 4 + .../selftests/net/reuseport_dualstack.sh | 4 + 10 files changed, 2531 insertions(+), 2495 deletions(-) create mode 100755 tools/testing/selftests/net/pmtu-test.sh create mode 100755 tools/testing/selftests/net/reuseport_bpf.sh create mode 100755 tools/testing/selftests/net/reuseport_bpf_cpu.sh create mode 100755 tools/testing/selftests/net/reuseport_bpf_numa.sh create mode 100755 tools/testing/selftests/net/reuseport_dualstack.sh -- 2.43.0
