Describe the Bug
Subject: Electron App Crashes on macOS ARM64 with V8 OOM and Mach Port Errors
Hello everyone,
I am experiencing consistent crashes when running the Electron-based application Cursor (version 1.1.3 Universal) on my MacBook Pro with Apple Silicon (arm64 architecture).
System details:
- macOS Version: Darwin 24.5.0 (arm64)
- CPU: Apple Silicon (arm64)
- Cursor app version: 1.1.3 (Universal binary supporting x86_64 and arm64)
- Electron Version: 34.5.1
- Node.js Version: 20.19.0
- V8 Version: 13.2.152.41-electron.0
Issue:
The application repeatedly crashes with an out-of-memory (OOM) error inside the V8 JavaScript engine during garbage collection (Mark-Compact phase). The logs show:
scss
[...]
V8 javascript OOM (CALL_AND_RETRY_LAST)
Mark-Compact (reduce) ... last resort; GC in old space requested
[...]
Additionally, there are frequent errors related to macOS mach port notifications:
yaml
FATAL:exception_handler_server.cc Check failed: kr == KERN_SUCCESS. mach_port_request_notification: (os/kern) invalid capability (20)
and repeated errors indicating inability to get thread state:
java
process_reader_mac.cc thread_get_state(4): (os/kern) invalid argument (4)
These errors appear to cause the renderer process to crash with code 5. The extension host also exits immediately with code 0.
What I have tried so far:
- Verified the application binary is universal and runs under arm64 architecture using
arch -arm64. - Ran the app with disabled extensions and sandbox flags.
- Cleared application caches and preference files.
- Increased the Node.js heap size by launching with
--js-flags="--max-old-space-size=8192". - Verified macOS is up-to-date.
- Checked system permissions and granted full disk/network access to the app.
- Ran the app with Electron logging enabled for more detailed output.
- Attempted to capture native crash symbols using
atosbut with no meaningful output.
Despite these steps, the app continues to crash consistently with the same errors.
My system has enough RAM (~16GB) and minimal other load during the crashes.
I suspect there might be a memory leak or incompatibility issue with this version of Electron on macOS ARM64.
I would appreciate any insights or suggestions on:
- Potential workarounds or flags to mitigate the V8 OOM error.
- How to collect more detailed diagnostic data for Electron crashes on macOS.
- Whether this is a known issue with Electron 34.x on Apple Silicon.
- Alternative Electron versions or builds to try.
- Any similar experiences with Cursor app or other Electron apps on M1/M2 Macs.
Thank you in advance for your help!
Steps to Reproduce
I cleared all cache but still getting the error.
I reinstalled and still got the error.
Screenshots / Screen Recordings
Operating System
MacOS
Current Cursor Version (Menu → About Cursor → Copy)
Version: 1.1.3 (Universal)
VSCode Version: 1.96.2
Commit: 979ba33804ac150108481c14e0b5cb970bda3260
Date: 2025-06-15T06:37:17.379Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.5.0