From b53844eb57bbd5f639cbf7a2077a879e1c3e2c5b Mon Sep 17 00:00:00 2001
From: Ihor Kuzmychov <37931581+iikuzmychov@users.noreply.github.com>
Date: Sat, 29 Aug 2026 08:53:57 +0200
Subject: [PATCH] fix: skip setrlimit(RLIMIT_DATA) on macOS (#1849)

setrlimit(RLIMIT_DATA) is rejected by the macOS kernel for the values used here,
crashing the app during startup. Since --max-memory defaults to suggest_max_memory()
(4 on Darwin), max_memory is always set on macOS and every launch reached this call.

Fixes #1848.
---
 modules/core.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/modules/core.py b/modules/core.py
index 520e410..bea8c6c 100644
--- a/modules/core.py
+++ b/modules/core.py
@@ -178,6 +178,10 @@ def limit_resources() -> None:
             tensorflow.config.experimental.set_memory_growth(gpu, True)
     # limit memory usage
     if modules.globals.max_memory:
+        # setrlimit(RLIMIT_DATA) fails with EINVAL on macOS, crashing on launch.
+        # See https://github.com/hacksider/Deep-Live-Cam/issues/1848
+        if platform.system().lower() == 'darwin':
+            return
         memory = modules.globals.max_memory * 1024 ** 3
         if platform.system().lower() == 'windows':
             import ctypes