[Bugfix] Align Hub kernel dependency guidance

Signed-off-by: hsliuustc0106 <liuhongsheng4@huawei.com>

docs/user_guide/diffusion/attention_backends/huggingface_hub.md

@@ -12,7 +12,7 @@ implementations to reduce numerical drift and sampling divergence.
 ## Installation
 
 ```bash
-pip install kernels==0.14.1
+pip install kernels==0.15.2
 ```
 
 If `kernels` is unavailable, an explicit `FLASH_ATTN_HUB` or

requirements/common.txt

@@ -13,8 +13,9 @@ transformers >= 5.10.1, < 5.15
 av>=14.0.0
 omegaconf>=2.3.0
 diffusers==0.40.0
-# Hub kernels, including LTX-2.5 NATTEN
-kernels==0.14.1
+# Hub kernels, including LTX-2.5 NATTEN. Keep this pin in sync with the
+# supported transformers range above.
+kernels==0.15.2
 safetensors>=0.8.0
 accelerate==1.12.0
 soundfile>=0.13.1

tests/diffusion/models/ltx2/test_ltx25_pipeline.py

@@ -386,7 +386,7 @@ def test_ltx25_natten_failure_has_actionable_omni_remedy(monkeypatch):
         MissingNattenProcessor,
     )
 
-    with pytest.raises(RuntimeError, match=r"kernels==0\.14\.1.*supported GPU.*allow Hub access"):
+    with pytest.raises(RuntimeError, match=r"kernels==0\.15\.2.*supported GPU.*allow Hub access"):
         ltx2_components._create_ltx25_natten_processor()
 
 

vllm_omni/diffusion/models/ltx2/ltx2_components.py

@@ -298,7 +298,7 @@ def _create_ltx25_natten_processor() -> LTX2VideoVaeNeighborhoodNattenProcessor:
     except (ImportError, OSError, RuntimeError, ValueError) as exc:
         raise RuntimeError(
             "LTX-2.5 DiffVAE requires the shi-labs/natten Hub kernel. "
-            "Install kernels==0.14.1, use a supported GPU, leave "
+            "Install kernels==0.15.2, use a supported GPU, leave "
             "DIFFUSERS_DISABLE_REMOTE_CODE unset, and allow Hub access during kernel initialization."
         ) from exc