[None][test] Waive 3 DGX_B200 main-side CI flakes (kv-cache eviction, qwen3 fp8 lora, gemma4 e2e)

[brnguyen2]

Description

Three unit/integration tests flake on main CI independent of any change under test — they fail intermittently across hundreds of unrelated MRs and many distinct users, all with flake-typical signatures (hang/timeout, terminate-unexpectedly, assertion). Under fail-fast each flaky red gates the whole pipeline, so they block unrelated PRs. Waiving them in waives.txt, each with a filed tracking bug.

Test	Flake (14d on main)	Signature	Bug
kv_cache/test_kv_cache_v2_scheduler.py::TestKVCacheV2Llama::test_chunked_prefill_eviction_block_reuse	1.9% (17/874), 331 MRs, 10 users	terminate / assert / CUDA OOM	https://nvbugs/6607481
unittest/_torch/modules/tests_lora_modules/test_qwen3_sanity.py::TestQwen3LoRA::test_qwen3_fp8_lora	0.5% (11/2376), 334 MRs, 6 users	hang → 2400s timeout	https://nvbugs/6607487
unittest/_torch/modeling/test_gemma4_e2e_dummy.py::test_e2e_text_31b_dummy	0.8% (13/1711), 331 MRs, 4 users	terminate unexpectedly	https://nvbugs/6607482

Evidence from the whole-of-main stability report (trtllm-infra), 14-day window. These surfaced on the CI of #17414; that PR cherry-picks these same three waives to unblock and will rebase them away once this lands on main.

Test Coverage

Test-list-only change (tests/integration/test_lists/waives.txt). No code paths changed; the three tests are skipped in CI until their tracking bugs are resolved.

PR Checklist

• Please check this after reviewing the above items as appropriate for this PR.

Dev Engineer Review

• Added three DGX_B200 integration tests to tests/integration/test_lists/waives.txt.
• Each entry includes its tracking NVBugs ticket:
  • KV-cache eviction block reuse — nvbugs/6607481
  • Qwen3 FP8 LoRA sanity — nvbugs/6607487
  • Gemma4 31B dummy E2E — nvbugs/6607482
• The change is limited to the waiver list.
• No code paths, APIs, or exported entities changed.
• Verify the waiver entries against the repository format and confirm that no duplicate test or bug entries exist.

QA Engineer Review

• Only tests/integration/test_lists/waives.txt changed.
• Three waiver entries were added.
• No test-db/ or qa/ files were modified.
• Verdict: needs follow-up until CBTS coverage data is available.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Enterprise

Run ID: 10046974-fa9b-48c0-b1c7-4d9b08b630fe

📥 Commits

Reviewing files that changed from the base of the PR and between 7b1bb1a and 30898d6.

📒 Files selected for processing (1)

• tests/integration/test_lists/waives.txt

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Walkthrough

The waiver list adds three skipped integration test cases. Each entry references an NVBugs ticket.

Changes

Integration test waivers

Layer / File(s)	Summary
Add NVBugs-linked waiver entries tests/integration/test_lists/waives.txt	Adds waivers for the KV-cache chunked-prefill eviction, Gemma 4 31B dummy end-to-end text, and Qwen3 FP8 LoRA sanity tests.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Mergeability Score: ⚪ Minimal · up to 30898

This change only waives three documented flaky CI tests and does not alter product code or runtime behavior. No actionable merge-blocking risk remains after normal review and checks.

Possibly related PRs

• NVIDIA/TensorRT-LLM#17468: Adds skipped integration test entries to the same waiver list.
• NVIDIA/TensorRT-LLM#17661: Adds NVBugs-linked skipped test entries to the same waiver list.
• NVIDIA/TensorRT-LLM#17653: Adds NVBugs-linked skipped integration tests to the same waiver list.

Suggested reviewers: schetlur-nv

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the test waiver and names the three affected DGX_B200 CI flakes.
Description check	✅ Passed	The description explains the issue, solution, affected tests, tracking bugs, test coverage, and checklist status.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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_{Comment @coderabbitai help to get the list of available commands.}

[brnguyen2]

/bot run

[tensorrt-cicd]

PR_Github #66072 [ run ] triggered by Bot. Commit: 30898d6 Link to invocation

[brnguyen2]

/bot skip --comment "waive only PR"

[tensorrt-cicd]

PR_Github #66082 [ skip ] triggered by Bot. Commit: 30898d6 Link to invocation

[tensorrt-cicd]

PR_Github #66072 [ run ] completed with state ABORTED. Commit: 30898d6

Link to invocation

[tensorrt-cicd]

PR_Github #66082 [ skip ] completed with state SUCCESS. Commit: 30898d6
Skipping testing for commit 30898d6

Link to invocation