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| author | William Liu <will@willsroot.io> | 2025-07-17 05:29:47 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-07-17 17:47:56 +0300 |
| commit | 88b06e4fb4bf9ee36f788cb6f5a65d188341d0e2 (patch) | |
| tree | d831ba80dc2db640b7064bd0a1b1440ccaa04ce3 | |
| parent | 0e1d5d9b5c5966e2e42e298670808590db5ed628 (diff) | |
| download | linux-88b06e4fb4bf9ee36f788cb6f5a65d188341d0e2.tar.xz | |
selftests/tc-testing: Test htb_dequeue_tree with deactivation and row emptying
Ensure that any deactivation and row emptying that occurs
during htb_dequeue_tree does not cause a kernel panic.
This scenario originally triggered a kernel BUG_ON, and
we are checking for a graceful fail now.
Signed-off-by: William Liu <will@willsroot.io>
Signed-off-by: Savino Dicanosa <savy@syst3mfailure.io>
Link: https://patch.msgid.link/20250717022912.221426-1-will@willsroot.io
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json b/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json index b344570e7f40..c6db7fa94f55 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json +++ b/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json @@ -128,6 +128,32 @@ ] }, { + "id": "5456", + "name": "Test htb_dequeue_tree with deactivation and row emptying", + "category": [ + "qdisc", + "htb" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "$IP link set dev $DUMMY up || true", + "$IP addr add 10.10.11.10/24 dev $DUMMY || true", + "$TC qdisc add dev $DUMMY root handle 1: htb default 1", + "$TC class add dev $DUMMY parent 1: classid 1:1 htb rate 64bit ", + "$TC qdisc add dev $DUMMY parent 1:1 handle 2: netem", + "$TC qdisc add dev $DUMMY parent 2:1 handle 3: blackhole" + ], + "cmdUnderTest": "ping -c1 -W0.01 -I $DUMMY 10.10.11.11", + "expExitCode": "1", + "verifyCmd": "$TC -j qdisc show dev $DUMMY", + "matchJSON": [], + "teardown": [ + "$TC qdisc del dev $DUMMY root" + ] + }, + { "id": "c024", "name": "Test TBF with SKBPRIO - catch qlen corner cases", "category": [ |