From 6c309038cee4e992c16024e981c87a4d0604c2d4 Mon Sep 17 00:00:00 2001
From: Ryan Fleury <ryan.j.fleury@gmail.com>
Date: Thu, 25 Jun 2026 09:51:13 -0600
Subject: [PATCH] dbg_engine: ctrl thread - be robust to strange duplicate
 module unload events

---
 src/dbg_engine/dbg_engine_ctrl.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/dbg_engine/dbg_engine_ctrl.c b/src/dbg_engine/dbg_engine_ctrl.c
index 977ca9d6..a90b39f9 100644
--- a/src/dbg_engine/dbg_engine_ctrl.c
+++ b/src/dbg_engine/dbg_engine_ctrl.c
@@ -2816,7 +2816,14 @@ d_ctrl_thread__module_close(D_Handle process, D_Handle module, U64 base_vaddr)
         arena_release(node->arena);
         break;
       }
-      cond_var_wait_rw_w(stripe->cv, stripe->rw_mutex, max_U64);
+      if(node)
+      {
+        cond_var_wait_rw_w(stripe->cv, stripe->rw_mutex, max_U64);
+      }
+      else
+      {
+        break;
+      }
     }
   }