运行Processing Java程序时遭遇JRE致命错误SIGILL(0x4)导致崩溃，求问题排查方向

Let’s break down your crash and walk through the most likely fixes based on the error details and your setup:

First, let’s look at the critical parts of the crash log:

SIGILL (0x4) at pc=0x00007fff2ba6bb1b, pid=583, tid=0x0000000000001803
...
问题帧:
C [CoreFoundation+0xab1b] CFEqual+0x293

A SIGILL means the CPU encountered an illegal instruction, and since this is happening in CoreFoundation (a macOS system library) rather than your Java code, the issue is likely tied to how Processing's P3D renderer interacts with your system's graphics stack or Java environment.

1. Fix the Duplicate size() Call (Immediate Fix) #

Your code has a critical mistake that’s probably triggering the crash: you’re calling size(500,500,P3D) in both settings() and setup(). In Processing, settings() is specifically meant for initial window configuration (like size and renderer), and calling size() again in setup() causes conflicts—especially with 3D renderers like P3D which initialize OpenGL contexts on startup.

Replace your code with this corrected version:

void settings() { 
  size(500, 500, P3D); 
}
void setup() { 
  background(0); 
}
void draw() { }

2. Address Dual-Graphics Compatibility Issues #

Your Mac has both an AMD Radeon Pro 555X and Intel UHD Graphics 630. macOS’s automatic graphics switching can sometimes cause OpenGL conflicts with Processing's P3D renderer, especially on older macOS versions like 10.14.6.

Try these steps:

• Force Processing to use Intel Graphics: Open Activity Monitor, find your Processing instance, right-click it > Get Info, check "Prefer Intel Graphics". Restart Processing and test your code.
• Switch to P2D Renderer: If P3D isn’t strictly necessary, replace P3D with P2D in your size() call. P2D uses a different OpenGL implementation that’s often more stable on dual-GPU systems.
• Install System Updates: Make sure you have all available security updates for 10.14.6 installed (System Preferences > Software Update)—this can fix underlying graphics driver bugs.

3. Resolve Java Version Mismatches #

Your crash log mentions Java 8u202, but you stated you’re using 8u261. Processing typically bundles its own JRE, so it might be using the older bundled version instead of your system's Java.

• Set Processing to Use Your System Java: Open Processing > Preferences, find the "Java" section, and select the path to your 8u261 installation (usually /Library/Java/JavaVirtualMachines/jdk1.8.0_261.jdk/Contents/Home).
• Update Processing: Use the latest version of Processing that supports macOS 10.14.6 (Processing 3.5.4 is the last release compatible with older macOS versions—newer versions require 10.15+).

4. Reset Processing Preferences #

Corrupted preferences can sometimes cause low-level crashes. Try resetting them:

• Quit Processing completely.
• Delete the Processing preferences folder: ~/Library/Processing (access this by opening Finder, pressing Cmd+Shift+G, and pasting the path).
• Restart Processing and test your code again.

内容的提问来源于stack exchange，提问作者garrettlynchirl