Maybe it is a 'dbmsrv' problem? I have looked at the attached 'x_cons' file, but there were not even any user tasks connected and I could not see any database activity - based on that a deadlock seems unlikely.
I would recommend to check the database log file 'KnlMsg' for errors and if there are none, then run a 'ps -afe | grep dbmsrv' to identify the running dbmsrv processes.
Thorsten