[CI][Bugfix] Fix `Hybrid SSM NixlConnector PD prefix cache test (2 GPUs)` (#47157)

Signed-off-by: NickLucche <nicolo.lucchesi@mistral.ai>

Nicolò Lucchesi committed Jun 30, 2026 at 17:14 UTC dc148dc4d7633f749409f4b724a25669fd455d3d
1 file changed +2
tests/v1/kv_connector/nixl_integration/run_mamba_prefix_cache_test.sh
+2
@@ -51,6 +51,7 @@ vllm serve $MODEL \
51 --trust-remote-code \
52 --enable-prefix-caching \
53 --mamba-cache-mode all \
54 + --attention-backend FLASHINFER \
55 --kv-transfer-config "$KV_CONFIG" &
56
57 # Start decode instance
@@ -68,6 +69,7 @@ vllm serve $MODEL \
69 --trust-remote-code \
70 --enable-prefix-caching \
71 --mamba-cache-mode all \
72 + --attention-backend FLASHINFER \
73 --kv-transfer-config "$KV_CONFIG" &
74
75 echo "Waiting for prefill instance on port $PREFILL_PORT..."