Specifications

84 Product Errata
25759 Rev. 3.79 July 2009
Revision Guide for AMD Athlon™ 64 and AMD Opteron™ Processors
135 INVLPG Instruction With Address Prefix Does Not Correctly
Invalidate the Translation Requested
Description
When INVLPG is executed with an address size prefix in either 64-bit mode or 32-bit mode, it will
not invalidate the requested translation in the TLB. This can result in the possible use of stale
translations even after software has performed an INVLPG.
Potential Effect on System
Unpredictable system behavior.
Suggested Workaround
Do not use address size prefix in 32-bit or 64-bit mode.
Fix Planned
Yes