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| author | Alessandro Carminati (Red Hat) <alessandro.carminati@gmail.com> | 2024-03-14 13:59:11 +0300 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2024-03-20 02:16:09 +0300 |
| commit | f803bcf9208a2540acb4c32bdc3616673169f490 (patch) | |
| tree | a90cb445d6fa8d01e4d2e739c5d7d48a78a33a29 /kernel | |
| parent | 437ffcb0bf97361e5c4062043309832f4724d1a8 (diff) | |
| download | linux-f803bcf9208a2540acb4c32bdc3616673169f490.tar.xz | |
selftests/bpf: Prevent client connect before server bind in test_tc_tunnel.sh
In some systems, the netcat server can incur in delay to start listening.
When this happens, the test can randomly fail in various points.
This is an example error message:
# ip gre none gso
# encap 192.168.1.1 to 192.168.1.2, type gre, mac none len 2000
# test basic connectivity
# Ncat: Connection refused.
The issue stems from a race condition between the netcat client and server.
The test author had addressed this problem by implementing a sleep, which
I have removed in this patch.
This patch introduces a function capable of sleeping for up to two seconds.
However, it can terminate the waiting period early if the port is reported
to be listening.
Signed-off-by: Alessandro Carminati (Red Hat) <alessandro.carminati@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240314105911.213411-1-alessandro.carminati@gmail.com
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions