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linux/tools/testing
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Florian Westphal a794af4843 selftests: netfilter: query conntrack state to check for port clash resolution 
[ Upstream commit e84945bdc6 ]

Jakub reported this self test flaking occasionally (fails, but passes on
re-run) on debug kernels.

This is because the test checks for elapsed time to determine if both
connections were established in parallel.

Rework this to no longer depend on timing.
Use busywait helper to check that both sockets have moved to established
state and then query the conntrack engine for the two entries.

Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/netfilter-devel/20250926163318.40d1a502@kernel.org/
Fixes: 117e149e26 ("selftests: netfilter: test nat source port clash resolution interaction with tcp early demux")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-10-19 16:33:42 +02:00
..
crypto/chacha20-s390 tools/testing/crypto: Use vzalloc instead of vmalloc+memset 2022-07-05 14:46:36 +02:00
cxl cxl/test: Improve init-order fidelity relative to real-world systems 2024-10-25 16:07:04 -05:00
fault-injection failcmd: make failcmd.sh executable 2024-09-01 20:43:32 -07:00
ktest ktest.pl: Prevent recursion of default variable options 2025-08-20 18:30:29 +02:00
kunit kunit: qemu_configs: Disable faulting tests on 32-bit SPARC 2025-07-10 16:04:55 +02:00
memblock memblock: updates for 6.12-rc1 2024-09-25 11:35:19 -07:00
nvdimm nvdimm: ndtest: Return -ENOMEM if devm_kcalloc() fails in ndtest_probe() 2025-10-15 12:00:23 +02:00
radix-tree maple_tree: add regression test for spanning store bug 2024-10-17 08:35:10 -07:00
scatterlist tools/testing/scatterlist: add missing defines 2022-01-30 09:56:58 +02:00
selftests selftests: netfilter: query conntrack state to check for port clash resolution 2025-10-19 16:33:42 +02:00
shared test suite: use %zu to print size_t 2025-04-25 10:47:43 +02:00
vma mm/hugetlb: unshare page tables during VMA split, not before 2025-06-27 11:11:40 +01:00
vsock vsock/test: Fix occasional failure in SIOCOUTQ tests 2025-05-22 14:29:41 +02:00