Summary Tables of Changes
Intel
®
Core™2 Extreme Quad-Core Processor QX6000
Δ
Sequence and
13
Intel
®
Core™2 Quad Processor Q6000
Δ
Sequence
Specification Update
NO
B3
G0
Plan
ERRATA
AK45
X
X
No Fix
Values for LBR/BTS/BTM will be Incorrect after an Exit from
SMM
AK46
X
X
No Fix
Shutdown Condition May Disable Non-Bootstrap Processors
AK47
X
Fixed
SYSCALL Immediately after Changing EFLAGS.TF May Not
Behave According to the New EFLAGS.TF
AK48
X
X
No Fix
Code Segment Limit/Canonical Faults on RSM May be
Serviced before Higher Priority Interrupts/Exceptions
AK49
X
X
No Fix
VM Bit is Cleared on Second Fault Handled by Task Switch
from Virtual-8086 (VM86)
AK50
X
Fixed
IA32_FMASK is Reset during an INIT
AK51
X
X
No Fix
An Enabled Debug Breakpoint or Single Step Trap May Be
Taken after MOV SS/POP SS Instruction if it is Followed by
an Instruction That Signals a Floating Point Exception
AK52
X
X
No Fix
Last Branch Records (LBR) Updates May be Incorrect after a
Task Switch
AK53
X
X
No Fix
IO_SMI Indication in SMRAM State Save Area May Be Set
Incorrectly
AK54
X
X
No Fix
INIT Does Not Clear Global Entries in the TLB
AK55
X
Fixed
Using Memory Type Aliasing with Memory Types WB/WT May
Lead to Unpredictable Behavior
AK56
X
Fixed
Update of Read/Write (R/W) or User/Supervisor (U/S) or
Present (P) Bits without TLB Shootdown May Cause
Unexpected Processor Behavior
AK57
X
Fixed
BTS Message May Be Lost When the STPCLK# Signal is
Active
AK58
X
X
No Fix
CMPSB, LODSB, or SCASB in 64-bit Mode with Count
Greater or Equal to 2
48
May Terminate Early
AK59
X
X
No Fix
REP MOVS/STOS Executing with Fast Strings Enabled and
Crossing Page Boundaries with Inconsistent Memory Types
may use an Incorrect Data Size or Lead to Memory-Ordering
Violations
AK60
X
X
No Fix
MOV To/From Debug Registers Causes Debug Exception
AK61
X
X
No Fix
Unaligned Accesses to Paging Structures May Cause the
Processor to Hang
AK62
X
X
No Fix
EFLAGS Discrepancy on Page Faults and on EPT-Induced VM
Exits after a Translation Change
AK63
X
X
No Fix
LBR, BTS, BTM May Report a Wrong Address when an
Exception/Interrupt Occurs in 64-bit Mode
AK64
X
X
No Fix
Returning to Real Mode from SMM with EFLAGS.VM Set May
Result in Unpredictable System Behavior
AK65
X
X
No Fix
A Thermal Interrupt is Not Generated when the Current
Temperature is Invalid
AK66
X
Fixed
VMLAUNCH/VMRESUME May Not Fail when VMCS is
Programmed to Cause VM Exit to Return to a Different
Mode
AK67
X
X
No Fix
IRET under Certain Conditions May Cause an Unexpected
Alignment Check Exception