From f06a187f50f896e4a0ba5be1ce1f2d2dcd13b77b Mon Sep 17 00:00:00 2001
From: comfyanonymous <121283862+comfyanonymous@users.noreply.github.com>
Date: Sat, 1 Aug 2026 22:12:12 -0700
Subject: [PATCH] Handle case where swap memory query fails on windows.
 (#15219)

---
 comfy/model_management.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/comfy/model_management.py b/comfy/model_management.py
index f7351224d..e3c94c15a 100644
--- a/comfy/model_management.py
+++ b/comfy/model_management.py
@@ -684,7 +684,11 @@ def should_free_pins_for_ram_pressure(shortfall):
         return True
     if psutil.virtual_memory().available < WINDOWS_PIN_EVICTION_EMERGENCY_AVAILABLE:
         return True
-    return psutil.swap_memory().percent >= WINDOWS_PIN_EVICTION_SWAP_PERCENT
+    try:
+        return psutil.swap_memory().percent >= WINDOWS_PIN_EVICTION_SWAP_PERCENT
+    except RuntimeError as err:
+        logging.warning("Could not read Windows swap usage; falling back to RAM-pressure pin eviction: %s", err)
+        return True
 
 def ensure_pin_budget(size, evict_active=False, loaded=False):
     if args.high_ram: