Host system may panic if VM configured with a lot of memory

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Issue: On RHEL6 systems, with guests configured with 2TB or more of RAM, the host my panic.

Environment:

RHEL6
Virtualization
Guests configured with greater then or equal to 2TB of memory

Diagnostics:

Install RHEL6.6 on a system.
Create a guest with 3TB memory.
Start the guest.

When bug presents, a traceback si...

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