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authorJakub Kicinski <kuba@kernel.org>2025-08-01 11:16:38 -0700
committerJakub Kicinski <kuba@kernel.org>2025-08-04 17:21:44 -0700
commit5ef7fdf52c0f2b792802aac3438e67e5ebe7e63d (patch)
tree1b593d9ea036b67c6423bdc2bfde54e2a334acc6
parent01d3c8417b9c1b884a8a981a3b886da556512f36 (diff)
selftests: net: packetdrill: xfail all problems on slow machines
We keep seeing flakes on packetdrill on debug kernels, while non-debug kernels are stable, not a single flake in 200 runs. Time to give up, debug kernels appear to suffer from 10msec latency spikes and any timing-sensitive test is bound to flake. Reviewed-by: Willem de Bruijn <willemb@google.com> Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250801181638.2483531-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rwxr-xr-xtools/testing/selftests/net/packetdrill/ksft_runner.sh19
1 files changed, 1 insertions, 18 deletions
diff --git a/tools/testing/selftests/net/packetdrill/ksft_runner.sh b/tools/testing/selftests/net/packetdrill/ksft_runner.sh
index c5b01e1bd4c7..a7e790af38ff 100755
--- a/tools/testing/selftests/net/packetdrill/ksft_runner.sh
+++ b/tools/testing/selftests/net/packetdrill/ksft_runner.sh
@@ -35,24 +35,7 @@ failfunc=ktap_test_fail
if [[ -n "${KSFT_MACHINE_SLOW}" ]]; then
optargs+=('--tolerance_usecs=14000')
-
- # xfail tests that are known flaky with dbg config, not fixable.
- # still run them for coverage (and expect 100% pass without dbg).
- declare -ar xfail_list=(
- "tcp_blocking_blocking-connect.pkt"
- "tcp_blocking_blocking-read.pkt"
- "tcp_eor_no-coalesce-retrans.pkt"
- "tcp_fast_recovery_prr-ss.*.pkt"
- "tcp_sack_sack-route-refresh-ip-tos.pkt"
- "tcp_slow_start_slow-start-after-win-update.pkt"
- "tcp_timestamping.*.pkt"
- "tcp_user_timeout_user-timeout-probe.pkt"
- "tcp_zerocopy_cl.*.pkt"
- "tcp_zerocopy_epoll_.*.pkt"
- "tcp_tcp_info_tcp-info-.*-limited.pkt"
- )
- readonly xfail_regex="^($(printf '%s|' "${xfail_list[@]}"))$"
- [[ "$script" =~ ${xfail_regex} ]] && failfunc=ktap_test_xfail
+ failfunc=ktap_test_xfail
fi
ktap_print_header