kernel/linux.git/tools/testing/selftests/net/cmsg_time.sh, branch v6.19.11Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v6.19.112025-01-18T02:36:14+00:00selftests: net: give up on the cmsg_time accuracy on slow machines2025-01-18T02:36:14+00:00Jakub Kicinskikuba@kernel.org2025-01-16T02:01:05+00:00urn:sha1:54ea680b759c4d76de16381e4d2a4623653b2f9f
Commit b9d5f5711dd8 ("selftests: net: increase the delay for relative
cmsg_time.sh test") widened the accepted value range 8x but we still
see flakes (at a rate of around 7%).
Return XFAIL for the most timing sensitive test on slow machines.
Before:
# ./cmsg_time.sh
Case UDPv4 - TXTIME rel returned '8074us - 7397us < 4000', expected 'OK'
FAIL - 1/36 cases failed
After:
# ./cmsg_time.sh
Case UDPv4 - TXTIME rel returned '1123us - 941us < 500', expected 'OK' (XFAIL)
Case UDPv6 - TXTIME rel returned '1227us - 776us < 500', expected 'OK' (XFAIL)
OK
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250116020105.931338-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
selftests: net: increase the delay for relative cmsg_time.sh test2024-05-11T01:22:10+00:00Jakub Kicinskikuba@kernel.org2024-05-10T00:57:05+00:00urn:sha1:b9d5f5711dd8ea2297b952c6a35e6e918cf57948
Slow machines can delay scheduling of the packets for milliseconds.
Increase the delay to 8ms if KSFT_MACHINE_SLOW. Try to limit the
variability by moving setsockopts earlier (before we read time).
This fixes the "TXTIME rel" failures on debug kernels, like:
Case ICMPv4 - TXTIME rel returned '', expected 'OK'
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20240510005705.43069-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
selftests/net: convert cmsg tests to make them run in unique namespace2023-12-05T12:00:56+00:00Hangbin Liuliuhangbin@gmail.com2023-12-02T02:01:01+00:00urn:sha1:7c16d485fec5d0010b992e75ad996e7382950879
Here is the test result after conversion.
]# ./cmsg_ipv6.sh
OK
]# ./cmsg_so_mark.sh
OK
]# ./cmsg_time.sh
OK
Acked-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
selftests: net: test standard socket cmsgs across UDP and ICMP sockets2022-02-10T15:04:52+00:00Jakub Kicinskikuba@kernel.org2022-02-10T00:36:49+00:00urn:sha1:af6ca20591efce42535e1c870b7ae6eae98df1b3
Test TIMESTAMPING and TXTIME across UDP / ICMP and IP versions.
Before ICMPv6 support:
# ./tools/testing/selftests/net/cmsg_time.sh
Case ICMPv6 - ts cnt returned '0', expected '2'
Case ICMPv6 - ts0 SCHED returned '', expected 'OK'
Case ICMPv6 - ts0 SND returned '', expected 'OK'
Case ICMPv6 - TXTIME abs returned '', expected 'OK'
Case ICMPv6 - TXTIME rel returned '', expected 'OK'
FAIL - 5/36 cases failed
After:
# ./tools/testing/selftests/net/cmsg_time.sh
OK
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>