decap_sanity prints the following on the 1st run: decap_sanity: sh: 1: Syntax error: Bad fd number and the following on the 2nd run: Cannot create namespace file "/run/netns/decap_sanity_ns": File exists The problem is that the cleanup command has a typo and does nothing. Fix the typo. Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx> --- tools/testing/selftests/bpf/prog_tests/decap_sanity.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/prog_tests/decap_sanity.c b/tools/testing/selftests/bpf/prog_tests/decap_sanity.c index 0b2f73b88c53..2853883b7cbb 100644 --- a/tools/testing/selftests/bpf/prog_tests/decap_sanity.c +++ b/tools/testing/selftests/bpf/prog_tests/decap_sanity.c @@ -80,6 +80,6 @@ void test_decap_sanity(void) bpf_tc_hook_destroy(&qdisc_hook); close_netns(nstoken); } - system("ip netns del " NS_TEST " >& /dev/null"); + system("ip netns del " NS_TEST " &> /dev/null"); decap_sanity__destroy(skel); } -- 2.39.1