# uname -v
FreeBSD 13.0-RELEASE-p1 #0: Wed May 26 22:15:09 UTC 2021 firstname.lastname@example.org:/usr/obj/usr/src/amd64.amd64/sys/GENERIC
I have a hardware board (Xilinx Ultrascale Cortex-A53) with a USB FDTI serial console configured at 115200 baud and if I connect using telnet or the `rtems-test` command `ser2net` seems to spin with 100% CPU load.
I ran `ser2net` from the command line with a number of threads and a number of CPUs seems to max at 100%.
The serial output `set2net` sents over the telnet connection has dropped data. Observing the data stream from the RTEMS applications running on the Utlrascale hardware it seems the dropped data is from the start of a block. The UART has a TX FIFO and it is being used.
Note, the `rtems-test` command uses Python's `telnetlib` to connect using the telnet protocol.