selftests: net: lib: kill PIDs before del netns

[ Upstream commit 7965a7f32a ]

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: 25ae948b44 ("selftests/net: add lib.sh")
Acked-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Acked-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20240813-upstream-net-20240813-selftests-net-lib-kill-v1-1-27b689b248b8@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Matthieu Baerts (NGI0) 2024-08-13 15:39:34 +02:00 committed by Greg Kroah-Hartman
parent fc9cae2199
commit d4b8c4bb77

View File

@ -42,6 +42,7 @@ 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"