V8 OOM Crash on Linux - Renderer Process Exits with Code 4 #39055

Description

Summary

OpenCode Desktop consistently crashes approximately 30-35 seconds after launch
on Debian Linux. The renderer process exits with code 4 due to V8 Zone memory
exhaustion, despite system having ample available RAM (9GB free of 14GB
total).

Environment

• OpenCode Version: 1.18.6
• Electron Version: 42.3.3
• Operating System: Debian GNU/Linux 13 (trixie)
• Architecture: x86_64
• Installation Method: AppImage (opencode-desktop-linux-x86_64.AppImage)
• CPU: AMD Ryzen 7 4800U with Radeon Graphics

Steps to Reproduce

1. Launch OpenCode Desktop via AppImage:

   ./opencode-desktop-linux-x86_64.AppImage

2. Wait approximately 30-35 seconds
3. Application window opens but crashes shortly after

Actual Behavior

The renderer process crashes with the following errors in logs:

[ERROR:third_party/blink/renderer/bindings/core/v8/v8_initializer.cc:948] V8
process OOM (Zone).
[ERROR:mojo/public/cpp/bindings/lib/interface_endpoint_client.cc:748] Message
4 rejected by interface blink.mojom.WidgetHost
(window) app render process gone {
url: 'oc://renderer/index.html',
details: { reason: 'crashed', exitCode: 4 }
}

Expected Behavior

Application should run normally without crashing.

Workarounds Attempted (None Successful)

• --disable-gpu flag
• --disable-dev-shm-usage flag
• --no-sandbox flag
• --js-flags="--max-old-space-size=4096" flag
• Clearing application cache and user data

System Status

$ free -h
内存： 14Gi 5.0Gi 5.2Gi 300Mi 5.7Gi
9Gi

Additional Context

• FUSE is installed and working
• All required libraries are present
• Only the renderer process crashes; main process continues running
• Multiple crash dumps accumulate in
  ~/.config/ai.opencode.desktop/Crashpad/pending/
• Note: There is a separate AMD Ryzen issue (Missing sessions after update #39064) for SIGILL crashes - this
  is a different V8 OOM issue

Plugins

No response

OpenCode version

No response

Steps to reproduce

No response

Screenshot and/or share link

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Operating System

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Terminal

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