Hangs after inactivity

[Arvind Nagarajan <arnagara@xxxxxxxxx>]

Hi,

My linux machine hangs after some period of inactivity (8+ hrs).
Anyone experiencing similar issue.

CentOS
Release 6.5(Final)
Kernel Linux 2.6.32-431.el6_x86_64
GNOME 2.28.2

Processor (0 - 7):
Intel(R) Core(TM) i7-4770 CPU @ 3.40 GHz

Any pointers will be helpful.

Thanks,
--Arvind
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