Enhance runtime memory check in CI (#15192)

python/sglang/srt/managers/scheduler_runtime_checker_mixin.py

@@ -5,6 +5,7 @@ import signal
 import sys
 import threading
 import time
+import warnings
 from typing import TYPE_CHECKING
 
 import psutil
@@ -175,6 +176,13 @@ class SchedulerRuntimeCheckerMixin:
         if current_batch is None:
             return
 
+        spec_topk = self.server_args.speculative_eagle_topk or 1
+        if spec_topk > 1:
+            warnings.warn(
+                "Runtime memory check (busy) is not supported when speculation topk > 1."
+            )
+            return
+
         _, _, available_size, evictable_size = self._get_token_info()
         protected_size = self.tree_cache.protected_size()