Summary Tables of Changes
10
Specification Update
Number
D0
M0
Plans
ERRATA
AN12
X
Fixed
FP Inexact-Result Exception Flag May Not Be Set
AN13
X
Fixed
A Locked Data Access that Spans Across Two Pages
May Cause the
System to Hang
AN14
X
X
No Fix
MOV To/From Debug Registers Causes Debug Exception
AN15
X
X
No Fix
INIT Does Not Clear Global Entries in the TLB
AN16
X
Fixed
Use of Memory Aliasing with Inconsistent Memory Type May Cause
System Hang
AN17
X
Fixed
Machine Check Exception May Occur when Interleaving Code
Between Different Memory Types
AN18
Erratum removed
AN19
Erratum removed
AN20
X
X
No Fix
LOCK# Asserted During a Special Cycle Shutdown Transaction May
Unexpectedly Deassert
AN21
Erratum removed
AN22
X
X
No Fix
Last Branch Records (LBR) Updates May be Incorrect After a Task
Switch
AN23
X
X
No Fix
Address Reported by Machine-Check Architecture (MCA) on Single-
bit L2 ECC Errors May be Incorrect
AN24
X
Fixed
Disabling of Single-step On Branch Operation May be Delayed
following a POPFD Instruction
AN25
X
Fixed
Performance Monitoring Counters that Count External Bus Events
May Report Incorrect Values after Processor Power State Transitions
AN26
X
X
No Fix
VERW/VERR/LSL/LAR Instructions May Unexpectedly Update the
Last Exception Record (LER) MSR
AN27
X
X
No Fix
General Protection (#GP) Fault May Not Be Signaled on Data
Segment Limit Violation Above 4-G Limit
AN28
X
Fixed
Performance Monitoring Events for Retired Floating Point Operations
(C1h) May Not be Accurate
AN29
X
X
No Fix
DR3 Address Match on MOVD/MOVQ/MOVNTQ Memory Store
Instruction May Incorrectly Increment Performance Monitoring
Count for Saturating SIMD Instructions Retired (Event CFH)
AN30
X
Fixed
Global Pages in the Data Translation Look-Aside Buffer (DTLB) May
Not Be Flushed by RSM instruction before Restoring the
Architectural State from SMRAM
AN31
X
Fixed
Data Breakpoint/Single Step on MOV SS/POP SS May be Lost after
Entry into SMM
AN32
X
Fixed
CS Limit Violation on RSM May be Serviced before Higher Priority
Interrupts/Exceptions
AN33
Erratum removed
AN34
X
X
No Fix
Pending x87 FPU Exceptions (#MF) Following STI May Be Serviced
Before Higher Priority Interrupts