On Tue, Aug 13, 2024 at 03:39:34PM +0200, Matthieu Baerts (NGI0) wrote:
> 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 <martin...@kernel.org>
> Signed-off-by: Matthieu Baerts (NGI0) <matt...@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 d0219032f773..8ee4489238ca 100644
> --- a/tools/testing/selftests/net/lib.sh
> +++ b/tools/testing/selftests/net/lib.sh
> @@ -146,6 +146,7 @@ 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) <matt...@kernel.org>
>
Thanks for the fix
Reviewed-by: Hangbin Liu <liuhang...@gmail.com>
