Specification Update 9
Summary Tables of Changes
AAZ21 X X No Fix
Improper Parity Error Signaled in the IQ Following Reset When a
Code Breakpoint Is Set on a #GP Instruction
AAZ22 XXNo 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
AAZ23 X X No Fix IA32_MPERF Counter Stops Counting during On-Demand TM1
AAZ24 X X No Fix
The Memory Controller tTHROT_OPREF Timings May Be Violated
during Self-Refresh Entry
AAZ25 X X No Fix
Synchronous Reset of IA32_APERF/IA32_MPERF Counters on
Overflow Does Not Work
AAZ26 X X No Fix
Disabling Thermal Monitor While Processor is Hot, Then Re-
enabling, May Result in Stuck Core Operating Ratio
AAZ27 X X No Fix
Writing the Local Vector Table (LVT) When an Interrupt is
Pending May Cause an Unexpected Interrupt
AAZ28 X X No Fix
xAPIC Timer May Decrement Too Quickly Following an
Automatic Reload While in Periodic Mode
AAZ29 X X No Fix
Changing the Memory Type for an In-Use Page Translation May
Lead to Memory-Ordering Violations
AAZ30 X X No Fix
Infinite Stream of Interrupts May Occur If an ExtINT Delivery
Mode Interrupt is Received While All Cores in C6
AAZ31 X X No Fix Two xAPIC Timer Event Interrupts May Unexpectedly Occur
AAZ32 X X No Fix
EOI Transaction May Not Be Sent If Software Enters Core C6
during an Interrupt Service Routine
AAZ33 X X No Fix
FREEZE_WHILE_SMM Does Not Prevent Event from Pending
PEBS during SMM
AAZ34 X X No Fix APIC Error “Received Illegal Vector” May Be Lost
AAZ35 X X No Fix
DR6 May Contain Incorrect Information When the First
Instruction after a MOV SS,r/m or POP SS Is a Store
AAZ36 X X No Fix
An Uncorrectable Error Logged in IA32_CR_MC2_STATUS May
Also Result in a System Hang
AAZ37 X X No Fix IA32_PERF_GLOBAL_CTRL MSR May Be Incorrectly Initialized
AAZ38 X X No Fix
Performance Monitor Counter INST_RETIRED.STORES May
Count Higher Than Expected
AAZ39 X X No Fix
Sleeping Cores May Not Be Woken Up on Logical Cluster Mode
Broadcast IPI Using Destination Field Instead of Shorthand
AAZ40 X X No Fix
Faulting Executions of FXRSTOR May Update State
Inconsistently
AAZ41 X X No Fix
Performance Monitor Event EPT.EPDPE_MISS May Be Counted
While EPT Is Disable
AAZ42 X X No Fix
Memory Aliasing of Code Pages May Cause Unpredictable
System Behavior
AAZ43 X X No Fix Performance Monitor Counters May Count Incorrectly
Errata (Sheet 2 of 5)
Number
Steppings
Status ERRATA
C-2 K-0
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