Intel SL7PG - Xeon 3.4 GHz/800MHz/1MB Cache CPU Processor Specification page 43

64-bit intel xeon processor with 800 mhz system bus (1 mb and 2 mb l2 cache versions) specification update

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S93

Debug Status Register (DR6) Breakpoint Condition Detected Flags May be

Set Incorrectly

Problem:

The Debug Status Register (DR6) may report detection of a spurious breakpoint condition under

certain boundary conditions when either:

•

A "MOV SS" or "POP SS" instruction is immediately followed by a hardware debugger

breakpoint instruction, or

•

Any debug register access ("MOV DRx, r32" or "MOV r32, DRx") results in a general-detect

exception condition.

Due to this erratum the breakpoint condition detected flags may be set incorrectly.

Implication:

Workaround:

None identified.

No Fix.

Status:

64-bit Intel

Xeon

Processor with 800 MHz System Bus

(1 MB and 2 MB L2 Cache Versions) Specification Update

Errata

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Sl7ph - xeon 3.6 ghz/800mhz/1mb cpu processor Xeon series