FIPS mode causes 3rd-party Percona MySQL to drop connections

Issue

• After enabling FIPS mode, we can still login to our Percona mysql db on the command-line, but any USE <db> command fails like this:

  mysql> use mysql;
  No connection. Trying to reconnect...
  Connection id:     1
  Current database: *** NONE ***
  
  Database changed
  mysql> show tables;
  ERROR 2006 (HY000): MySQL server has gone away
  No connection. Trying to reconnect...
  Connection id:     1
  Current database: *** mysql ***
  
  ERROR 2006 (HY000): MySQL server has gone away
  No connection. Trying to reconnect...
  ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)
  ERROR:
  Can't connect to the server
  

• Disabling FIPS resolves the issue