Hi, I’m having an issue with Java 21 on Pterodactyl and I need some clarification.
Context:
• Pterodactyl panel
• Node running on Proxmox
• Debian CT
• Minecraft Spigot 1.21.1 (Java 21 required)
• Docker image: ghcr.io/pterodactyl/yolks:java_21
Problem:
My server randomly crashes with a fatal JVM error (SIGSEGV).
No Minecraft stacktrace, only a native JVM crash during G1 Garbage Collection:
SIGSEGV (0xb)
Problematic frame: libjvm.so (G1 GC)
I already fixed corrupted chunks, switched from Paper to Spigot, and verified memory/Proxmox settings.
The issue still happens, so it looks like a Java 21 / JVM build issue, not Minecraft itself.
Thanks in advance 🙏