Returning an old server back to life, I have started running the vanilla 1.17.1 minecraft_server.jar to host an old world.

Here, I am running into a consistent crash for the server when reaching a certain location in the overworld. (at least that location, possibly more?)

The behaviour is that when I reach that place, the server ceases to respond (memory usage flatlines and the avg tick stops updating). After some time, I get disconnected and reconnecting causes the attached crash-log to be generated.

I am assuming the fatal error is caused by the conversion process of this old minecraft 1.8 generated chunk.

Shall I zip my server files and upload it somewhere, attaching it to a private bug or the like, or is there something else I could do to generate a dumpfile?