Weird situation, can't kill cpbackup processes

I've no idea what's causing this, I was trying to kill cpbackup as it was causing load, but it came to my surprise that it didn't work, it wasn't killed.

Any idea what's wrong?

Could it be hardware issue?

root 4401 0.0 0.1 5764 3680 ? DN 01:00 0:00 /usr/bin/perl /scripts/cpbackup
mailnull 5028 0.0 0.0 6636 1724 ? S 01:03 0:00 /usr/sbin/sendmail -FCronDaemon -i -odi -oem root
root 5179 0.0 0.0 1488 360 ? DN 01:04 0:00 /usr/local/cpanel/bin/cpuwatch 14.0 /scripts/pkgacct aceduo /backup/c
root 5180 0.0 0.1 3944 2252 ? DN 01:04 0:00 pkgacct - aceduo
root 5388 0.0 0.0 164 16 ? DN 01:04 0:00 cp -a /usr/local/cpanel/3rdparty/mailman/archives/public/*_www.walton
procs memory swap io system cpu
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 0 92924 229380 1273772 0 0 16 70 77 106 15 4 78 2
0 0 0 94932 229380 1273812 0 0 0 0 268 236 9 1 90 0
1 0 0 98472 229384 1273820 0 0 0 788 288 184 14 2 82 1
0 0 0 98492 229384 1273828 0 0 0 0 205 177 1 0 99 0

 

 

 

 

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