[rdiff-backup-users] Backup freezing destination computer

[Robert Farrington]

I am using rdiff-backup 1.2.8 on Centos 7, backing up a remote Centos 7 
computer.  It occasionally freezes up the destination computer, and I can't log 
in or ssh in to see what's wrong.  If I leave it logged in and it freezes, I 
still can't do anything to find out what's wrong.  I have to power cycle to get 
it back.  Any suggestions on how to fix this?Bob