Table of Contents
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Summary Tables of Changes
Errata (Sheet 2 of 4)
Steppings
Number
C-2
BG21
X
BG22
X
BG23
X
BG24
X
BG25
X
BG26
X
BG27
X
BG28
X
BG29
X
BG30
X
BG31
X
BG32
X
BG33
X
BG34
X
BG35
X
BG36
X
BG37
X
BG38
X
BG39
X
BG40
X
BG41
X
Specification Update
Status
K-0
An Enabled Debug Breakpoint or Single Step Trap May Be
Taken after MOV SS/POP SS Instruction If It Is Followed by
X
No Fix
an Instruction That Signals a Floating Point Exception
IA32_MPERF Counter Stops Counting during On-Demand
X
No Fix
TM1
The Memory Controller tTHROT_OPREF Timings May Be
X
No Fix
Violated during Self-Refresh Entry
Synchronous Reset of IA32_APERF/IA32_MPERF Counters
X
No Fix
on Overflow Does Not Work
Disabling Thermal Monitor While Processor is Hot, Then Re-
X
No Fix
enabling, May Result in Stuck Core Operating Ratio
Writing the Local Vector Table (LVT) When an Interrupt is
X
No Fix
Pending May Cause an Unexpected Interrupt
xAPIC Timer May Decrement Too Quickly Following an
X
No Fix
Automatic Reload While in Periodic Mode
Changing the Memory Type for an In-Use Page Translation
X
No Fix
May Lead to Memory-Ordering Violations
Infinite Stream of Interrupts May Occur If an ExtINT
X
No Fix
Delivery Mode Interrupt is Received While All Cores in Deep
Power Down Technology (code name C6 state)
X
No Fix
Two xAPIC Timer Event Interrupts May Unexpectedly Occur
EOI Transaction May Not Be Sent If Software Enters Core
X
No Fix
Deep Power Down Technology (code name C6 state) during
an Interrupt Service Routine
FREEZE_WHILE_SMM Does Not Prevent Event from Pending
X
No Fix
PEBS during SMM
X
No Fix
APIC Error "Received Illegal Vector" May Be Lost
DR6 May Contain Incorrect Information When the First
X
No Fix
Instruction after a MOV SS,r/m or POP SS Is a Store
An Uncorrectable Error Logged in IA32_CR_MC2_STATUS
X
No Fix
May Also Result in a System Hang
IA32_PERF_GLOBAL_CTRL MSR May Be Incorrectly
X
No Fix
Initialized
Performance Monitor Counter INST_RETIRED.STORES May
X
No Fix
Count Higher Than Expected
Sleeping Cores May Not Be Woken Up on Logical Cluster
X
No Fix
Mode Broadcast IPI Using Destination Field Instead of
Shorthand
Faulting Executions of FXRSTOR May Update State
X
No Fix
Inconsistently
Performance Monitor Event EPT.EPDPE_MISS May Be
X
No Fix
Counted While EPT Is Disable
Memory Aliasing of Code Pages May Cause Unpredictable
X
No Fix
System Behavior
ERRATA
11
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