AMD Sempron 10 Specifications Page 83

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Product Errata 83
Revision Guide for AMD Family 10h Processors
41322 Rev. 3.84 August 2011
343 Eviction May Occur When Using L2 Cache as General Storage
During Boot
Description
When system software is using the L2 cache as general storage before memory initialization, the
processor may determine during speculative execution that data destined for the instruction cache is
dirty. The processor will then evict these cache lines, resulting in lost data.
Potential Effect on System
System software using L2 cache as general storage before memory initialization may experience
unpredictable system behavior.
Suggested Workaround
System software should set MSRC001_102A[35] to 1b prior to using L2 cache as general storage
during boot. System software should clear MSRC001_102A[35] to 0b after the L2 cache is no longer
used as general storage.
Fix Planned
No
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