From: Hangbin Liu <liuhangbin@gmail.com>
To: netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Simon Horman <horms@kernel.org>, Shuah Khan <shuah@kernel.org>,
Florian Westphal <fw@strlen.de>,
linux-kselftest@vger.kernel.org,
Hangbin Liu <liuhangbin@gmail.com>
Subject: [PATCH net-next] selftests: rtnetlink: print device info on preferred_lft test failure
Date: Tue, 19 Aug 2025 07:47:49 +0000 [thread overview]
Message-ID: <20250819074749.388064-1-liuhangbin@gmail.com> (raw)
Even with slowwait used to avoid system sleep in the preferred_lft test,
failures can still occur after long runtimes.
Print the device address info when the test fails to provide better
troubleshooting data.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
---
tools/testing/selftests/net/rtnetlink.sh | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index d6c00efeb664..91b0f6cae04d 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -313,6 +313,8 @@ kci_test_addrlft()
slowwait 5 check_addr_not_exist "$devdummy" "10.23.11."
if [ $? -eq 1 ]; then
+ # troubleshoot the reason for our failure
+ run_cmd ip addr show dev "$devdummy"
check_err 1
end_test "FAIL: preferred_lft addresses remaining"
return
--
2.50.1
next reply other threads:[~2025-08-19 7:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-19 7:47 Hangbin Liu [this message]
2025-08-21 2:40 ` [PATCH net-next] selftests: rtnetlink: print device info on preferred_lft test failure patchwork-bot+netdevbpf
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