kdump cannot collect vmcore on system with 1TB or more memory

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Issue

kdump cannot collect vmcore by RHEL6.0 EFI/UEFI on system with 1TB or more memory.
This problem has already been reported in BZ654665/BZ668825 and there is a patch there.

Environment

Red Hat Enterprise Linux 6GA
Architecture: x86_64
Kernel Version: kernel-2.6.32-71.el6.x86_64.rpm

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