Summary Tables of Changes
10
Specification Update
Errata (Sheet 1 of 4)
Number
Steppings
Status
ERRATA
C-2
K-0
BG1
X
X
No Fix
The Processor May Report a #TS Instead of a #GP Fault
BG2
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
BG3
X
X
No Fix
Code Segment Limit/Canonical Faults on RSM May Be
Serviced before Higher Priority Interrupts/Exceptions and
May Push the Wrong Address onto the Stack
BG4
X
X
No Fix
Performance Monitor SSE Retired Instructions May Return
Incorrect Values
BG5
X
X
No Fix
Premature Execution of a Load Operation Prior to Exception
Handler Invocation
BG6
X
X
No Fix
MOV To/From Debug Registers Causes Debug Exception
BG7
X
X
No Fix
Incorrect Address Computed For Last Byte of FXSAVE/
FXRSTOR Image Leads to Partial Memory Update
BG8
X
X
No Fix
Values for LBR/BTS/BTM Will Be Incorrect after an Exit from
SMM
BG9
X
X
No Fix
Single Step Interrupts with Floating Point Exception Pending
May Be Mishandled
BG10
X
X
No Fix
Fault on ENTER Instruction May Result in Unexpected Values
on Stack Frame
BG11
X
X
No Fix
IRET under Certain Conditions May Cause an Unexpected
Alignment Check Exception
BG12
X
X
No Fix
General Protection Fault (#GP) for Instructions Greater than
15 Bytes May Be Preempted
BG13
X
X
No Fix
General Protection (#GP) Fault May Not Be Signaled on Data
Segment Limit Violation above 4-G Limit
BG14
X
X
No Fix
LBR, BTS, BTM May Report a Wrong Address When an
Exception/Interrupt Occurs in 64-bit Mode
BG15
X
X
No Fix
MONITOR or CLFLUSH on the Local XAPIC's Address Space
Results in Hang
BG16
X
X
No Fix
Corruption of CS Segment Register during RSM While
Transitioning from Real Mode to Protected Mode
BG17
X
X
No Fix
Performance Monitoring Events for Read Miss to Level 3
Cache Fill Occupancy Counter May Be Incorrect
BG18
X
X
No Fix
Performance Monitor Event SEGMENT_REG_LOADS Counts
Inaccurately
BG19
X
X
No Fix
#GP on Segment Selector Descriptor That Straddles
Canonical Boundary May Not Provide Correct Exception Error
Code
BG20
X
X
No Fix
Improper Parity Error Signaled in the IQ Following Reset
When a Code Breakpoint Is Set on a #GP Instruction