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What does `mcelog: Cannot open /dev/mem for DMI decoding: Permission denied` message imply?

Solution Unverified - Updated 2013-09-30T12:19:03+00:00 -

Issue

What does "mcelog: Cannot open /dev/mem for DMI decoding: Permission denied" message imply?
How to stop these messages?

Environment

Red Hat Enterprise Linux 5.9
mcelog-0.9pre-1.32.el5

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