w f wrote: > I locally host and maintain some Minecraft (Java) servers for my kids and > their friends. This morning, I kicked everyone off the servers while I did > some routine maintenance. I finished with a standard sudo apt update && sudo > apt full-upgrade > A few things were updated - PHP, a library or two, and the kernel from > 4.19.0-16-amd64 to 4.19.0-17-amd64 > All went fine. > After I was done, I rebooted the system and fired up the MC servers. As soon > as a player joins an MC server, the CPU usage on all cores slams to 100% and > stays there. The game is unplayable. > Nothing has changed with regards to the versions of game server, game > clients, or Java. > Debian buster.Oracle Java 16.0.1 > Is there any way to downgrade back to 4.19.0-16-amd64 ... ?
Probably, but I can attest that openjdk-11-jre-headless runs Minecraft servers perfectly well with that kernel, so perhaps switching Java runtimes is a less drastic choice. -dsr-
