segmentation faults etc

Hi Everyone,

My 7.0 machine has been running fine for almost 2 years now -- but on
monday morning I tried to SSH to the machine and after password is
entered it disconnected. I went to the box and put on the monitor and
there were tons of error messages on the screen, segmentation faults.
I logged in with root and after a few seconds there was another
segfault. I tried to reboot which took ages and for some reason the
partitions were not properly unmounted. Once rebooted I was able to
log in via terminal and ssh -- but on terminal sometimes there would
be errors. I ran up2date and after that was completed I would get
segmentation faults when running programs like df and there would be a
core dump.
I decided to put in a rh7.2 cd and select "upgrade" -- but because the
filesystem is not cleanly unmounted it does not want to upgrade. I
have also seen with ps -ax there are a lot of jobs with status T
Where can I start finding solutions to get machine working 100% again.
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