[alphabetc1]

Summary

• Preserve SWA host-side lock refs when a host-backed SWA node is split.
• Move the SWA host_uuid boundary to the split parent so release walks still cover both fragments.
• Keep locked host-only SWA fragments out of the host LRU until the host lock is released.

Testing

• python3 -m py_compile python/sglang/srt/mem_cache/unified_cache/components/swa_component.py
• pre-commit run --files python/sglang/srt/mem_cache/unified_cache/components/swa_component.py

---

CI States

Latest PR Test (Base): ✅ Run #34040752126
Latest PR Test (Extra): ✅ Run #34040758011
Latest PR Test (AMD ROCm 7.2): ❌ Run #34040752082

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-05T15:44:47.309145Z	e684fa7	PR opened

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[alphabetc1]

/rerun-group radix_cache/unified_radix_tree

[github-actions]

Results for /rerun-group radix_cache/unified_radix_tree:

🚀 4-gpu-h100 (5 tests): ✅ View workflow run

cd test/ && python3 registered/radix_cache/unified_radix_tree/linker/test_unified_cache_linker_kl_dsv4.py
cd test/ && python3 registered/radix_cache/unified_radix_tree/test_unified_radix_cache_hicache_pp_kl.py
cd test/ && python3 registered/radix_cache/unified_radix_tree/test_unified_radix_cache_kl_cp.py
cd test/ && python3 registered/radix_cache/unified_radix_tree/test_unified_radix_cache_kl_dsv4.py
cd test/ && python3 registered/radix_cache/unified_radix_tree/test_unified_radix_cache_kl_mamba.py

🚀 8-gpu-h200 (4 tests): ✅ View workflow run

cd test/ && python3 registered/radix_cache/unified_radix_tree/linker/test_unified_cache_linker_kl_glm52.py
cd test/ && python3 registered/radix_cache/unified_radix_tree/test_unified_radix_cache_kl_dsv4_pp.py
cd test/ && python3 registered/radix_cache/unified_radix_tree/test_unified_radix_cache_kl_glm52.py
cd test/ && python3 registered/radix_cache/unified_radix_tree/test_unified_radix_cache_kl_mimo.py

🚀 4-gpu-b200 (1 test): ❌ View workflow run

cd test/ && python3 registered/radix_cache/unified_radix_tree/test_unified_radix_cache_kl_dcp.py

🚀 2-gpu-h100 (2 tests): ✅ View workflow run

cd test/ && python3 registered/radix_cache/unified_radix_tree/test_unified_radix_cache_kl_full.py
cd test/ && python3 registered/radix_cache/unified_radix_tree/test_unified_radix_cache_kl_swa.py

🚀 1-gpu-h100 (1 test): ✅ View workflow run

cd test/ && python3 registered/radix_cache/unified_radix_tree/test_unified_radix_cache_kl_hybrid_bitexact.py