When deleting netns, it is possible to still have some tasks running, e.g. background tasks like tcpdump running in the background, not stopped because the test has been interrupted. Before deleting the netns, it is then safer to kill all attached PIDs, if any. That should reduce some noises after the end of some tests, and help with the debugging of some issues. That's why this modification is seen as a "fix". Fixes: 25ae948b4478 ("selftests/net: add lib.sh") Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> --- tools/testing/selftests/net/lib.sh | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh index XXXXXXX..XXXXXXX 100644 --- a/tools/testing/selftests/net/lib.sh +++ b/tools/testing/selftests/net/lib.sh @@ -XXX,XX +XXX,XX @@ cleanup_ns() for ns in "$@"; do [ -z "${ns}" ] && continue + ip netns pids "${ns}" 2> /dev/null | xargs -r kill || true ip netns delete "${ns}" &> /dev/null || true if ! busywait $BUSYWAIT_TIMEOUT ip netns list \| grep -vq "^$ns$" &> /dev/null; then echo "Warn: Failed to remove namespace $ns" --- base-commit: 3b0e1975962a388844508be0b3e61e759837fa3e change-id: 20240802-selftests-net-lib-cleanup-kill-f546a233572e Best regards, -- Matthieu Baerts (NGI0) <matttbe@kernel.org> When deleting netns, it is possible to still have some tasks running, e.g. background tasks like tcpdump running in the background, not stopped because the test has been interrupted. Before deleting the netns, it is then safer to kill all attached PIDs, if any. That should reduce some noises after the end of some tests, and help with the debugging of some issues. That's why this modification is seen as a "fix". Fixes: 25ae948b4478 ("selftests/net: add lib.sh") Acked-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> --- tools/testing/selftests/net/lib.sh | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh index XXXXXXX..XXXXXXX 100644 --- a/tools/testing/selftests/net/lib.sh +++ b/tools/testing/selftests/net/lib.sh @@ -XXX,XX +XXX,XX @@ cleanup_ns() for ns in "$@"; do [ -z "${ns}" ] && continue + ip netns pids "${ns}" 2> /dev/null | xargs -r kill || true ip netns delete "${ns}" &> /dev/null || true if ! busywait $BUSYWAIT_TIMEOUT ip netns list \| grep -vq "^$ns$" &> /dev/null; then echo "Warn: Failed to remove namespace $ns" --- base-commit: 58a63729c957621f1990c3494c702711188ca347 change-id: 20240813-upstream-net-20240813-selftests-net-lib-kill-f7964a3a58fe Best regards, -- Matthieu Baerts (NGI0) <matttbe@kernel.org>