Interesting error code showing that it can't run without a coprocessor, but also that how much memory is actually being used (It seems to require 16MB RAM because it stalls on uncompressing at 8-12MB in the DX versions, but this seems to have been have been fixed for the 1DiskXwin.
https://github.com/hatonthecat/Pokey-Linux/tree/main/XServers/X%20on%20floppy