This is observed while running RenderPerfTest on MacBook Pro 16" with AMD graphics card active. (This is done by unchecking "Automatic graphics switching" under System Preferences -> Energy saver)

Steps to reproduce :
- Give a full run of RenderPerfTest using Lanai EA-3 build / latest code build as
java -Dsun.java2d.metal=true -jar ./dist/RenderPerfTest.jar

Tests run till wiredQuad and once the wiredQuadAA is launched, crash is observed.
Attached the crash log.

Note :
1. Crash is not observed if wiredQuadAA test is launched as standalone
test run.
2. Crash is not observed if Intel UHD graphics card is active.

Environment :
macOS Catalina 10.5.5
MacBook Pro 16" with discrete graphics card (AMD Radeon Pro 5500M) active.