From 0d031335ede72766ebdfe453e3cd945a8d708e65 Mon Sep 17 00:00:00 2001
From: Jonah Bernard <96398205+Jonahcb@users.noreply.github.com>
Date: Fri, 17 Apr 2026 02:50:47 -0400
Subject: [PATCH] [Pipeline Parallelism][Bug] Fix scheduler hang in pipeline
 parallelism setup (#23006)

---
 python/sglang/srt/managers/scheduler.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/sglang/srt/managers/scheduler.py b/python/sglang/srt/managers/scheduler.py
index 7bb566aec..bf7d45879 100644
--- a/python/sglang/srt/managers/scheduler.py
+++ b/python/sglang/srt/managers/scheduler.py
@@ -2459,7 +2459,7 @@ class Scheduler(
         # Instead, we should always allow chunked requests to be added, otherwise, there will be a memory leak.
         if (
             self.get_num_allocatable_reqs(running_bs) <= 0
-            and self.chunked_req is not None
+            and self.chunked_req is None
             and not self.enable_priority_preemption
         ):
             self.running_batch.batch_is_full = True