diff --git a/python/sglang/srt/environ.py b/python/sglang/srt/environ.py
index 7f25fb37b..1289c6a47 100644
--- a/python/sglang/srt/environ.py
+++ b/python/sglang/srt/environ.py
@@ -393,6 +393,10 @@ class Envs:
     # is replicated (Theorem 1). When on, MIN/MAX-reduce placement_digest across the
     # CP group each tick and fail loud on divergence. On in CI/bring-up, off in prod.
     SGLANG_CP_HICACHE_PLACEMENT_ASSERT = EnvBool(False)
+    # CP HiCache debug drift-detector: when on, _cp_host_capacity_snapshot walks the
+    # full radix tree and asserts the running per-rank counts match (fail loud on
+    # drift). Expensive full-walk per snapshot -> default off; on in bring-up/CI.
+    SGLANG_CP_HICACHE_VERIFY_SNAPSHOT = EnvBool(False)
 
     # Mooncake KV Transfer
     SGLANG_MOONCAKE_CUSTOM_MEM_POOL = EnvStr(None)
diff --git a/python/sglang/srt/mem_cache/allocator.py b/python/sglang/srt/mem_cache/allocator.py
index bf2cceff8..2eb69318e 100644
--- a/python/sglang/srt/mem_cache/allocator.py
+++ b/python/sglang/srt/mem_cache/allocator.py
@@ -1045,6 +1045,20 @@ class CPSharedPagedTokenToKVPoolAllocator(PagedTokenToKVPoolAllocator):
 
         return out_indices
 
+    def alloc_pages_for_shared_l2_load(
+        self, current_page_owners: List[int]
+    ) -> Optional[torch.Tensor]:
+        """Allocate fresh L1 pages for shared-physical L2 load-back.
+
+        ``current_page_owners`` is the load-time owner plan recomputed
+        positionally ((page-1) % cp_size), NOT the write-time ``page_owners``
+        metadata used by legacy CP HiCache replay. Thin wrapper over
+        ``alloc_pages_with_owners``; restored here because the 2b.0 adopt
+        ported the callee but dropped this wrapper that
+        ``cache_controller.load_cp_shared_l2`` calls.
+        """
+        return self.alloc_pages_with_owners(current_page_owners)
+
     def alloc_pages_with_owners(
         self,
         page_compute_owners: List[int],