9
Specification Update
Errata (Sheet 1 of 5)
Number
Steppings
Status ERRATA
C-2 K-0
AAU1
XX No FixThe Processor May Report a #TS Instead of a #GP Fault
AAU2
XX 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
AAU3
XX 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
AAU4
XX No FixPerformance Monitor SSE Retired Instructions May Return Incorrect Values
AAU5
XX No FixPremature Execution of a Load Operation Prior to Exception Handler Invocation
AAU6
XX No FixMOV To/From Debug Registers Causes Debug Exception
AAU7
XX No Fix
Incorrect Address Computed for Last Byte of FXSAVE/FXRSTOR Image Leads
to Partial Memory Update
AAU8
XX No FixValues for LBR/BTS/BTM Will Be Incorrect after an Exit from SMM
AAU9
XX No FixSingle Step Interrupts with Floating Point Exception Pending May Be Mishandled
AAU10
XX No FixFault on ENTER Instruction May Result in Unexpected Values on Stack Frame
AAU11
XX No Fix
IRET under Certain Conditions May Cause an Unexpected Alignment Check
Exception
AAU12
XX No Fix
General Protection Fault (#GP) for Instructions Greater than 15 Bytes May be
Preempted
AAU13
XX No Fix
General Protection (#GP) Fault May Not Be Signaled on Data Segment Limit
Violation above 4-G Limit
AAU14
XX No Fix
LBR, BTS, BTM May Report a Wrong Address when an Exception/Interrupt
Occurs in 64-bit Mode
AAU15
XX No Fix
MCi_Status Overflow Bit May Be Incorrectly Set on a Single Instance of a DTLB
Error
AAU16
XX No Fix
Debug Exception Flags DR6.B0-B3 Flags May be Incorrect for Disabled
Breakpoints
AAU17
XX No FixMONITOR or CLFLUSH on the Local XAPIC's Address Space Results in Hang
AAU18
XX No Fix
Corruption of CS Segment Register During RSM While Transitioning From Real
Mode to Protected Mode
AAU19
XX No Fix
Performance Monitoring Events for Read Miss to Level 3 Cache Fill Occupancy
Counter may be Incorrect
AAU20
XX No FixA VM Exit on MWAIT May Incorrectly Report the Monitoring Hardware as Armed
AAU21
XX No FixPerformance Monitor Event SEGMENT_REG_LOADS Counts Inaccurately
AAU22
XX No Fix
#GP on Segment Selector Descriptor that Straddles Canonical Boundary May
Not Provide Correct Exception Error Code
AAU23
XX No Fix
Improper Parity Error Signaled in the IQ Following Reset When a Code
Breakpoint is Set on a #GP Instruction
AAU24
XX 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
AAU25
XX No FixIA32_MPERF Counter Stops Counting During On-Demand TM1
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