Intel Xeon Processor Specification Update

22 Intel
®
Xeon
®
Processor Specification Update
Summary Table of Changes
Errata (Sheet 1 of 4)
No.
C1/
0F0Ah
D0/
0F12h
B0/
0F24h
C1/
0F27h
D1/
0F29h
M0/
0F25h
L0/
0F29h
Plans Errata
P1 XX FixedUC Code in same line as write back (WB) data may
lead to data corruption
P2 XXXXXXXNo FixTransaction is not retried after BINIT#
P3 XXXXXXXNo FixInvalid opcode 0FFFh requires a ModRM byte
P4 XXXXXXXNo FixWhen in no-fill mode (CR0.CD=1) the memory type
of large (PSE-4M and PAE-2M) pages are wrongly
forced to uncacheable
P5 XXXXXXXNo FixProcessor may hang due to speculative page
walks to nonexistent system memory
P6 XX FixedWriting a performance counter may result in an
incorrect counter value
P7 XX FixedPerformance counter may contain incorrect value
after being stopped
P8 XFixedREP MOV instruction with overlapping source and
destination may result in data corruption
P9 XXXXXXXNo FixMemory type of the load lock different from its
corresponding store unlock
P10 XXXXXXXNo FixMachine check architecture error reporting and
recovery may not work as expected
P11 XXXXXXXNo FixDebug mechanisms may not function as expected
P12 XFixedProcessor may live-lock if PDEs or PTEs are in UC
space
P13 XFixedThermal status log bit may not be set when the
thermal control circuit is active
P14 XX FixedProcessor may timeout waiting for a device to
respond after 0.67 seconds
P15 XXXXXXXNo FixCascading of performance counters does not work
correctly when forced overflow is enabled
P16 XXXXXXXNo FixEMON event counting of x87 loads may not work
as expected
P17 XX FixedSimultaneous code breakpoint and uncorrectable
error results in processor hang
P18 XX FixedSoftware controlled clock modulation using a
12.5% or 25% duty cycle may cause the processor
to hang
P19 XFixedRFO with ECC error may result in incorrect data
P20 XFixedSpeculative page-fault may cause livelock
P21 XFixedPAT index MSB may be calculated incorrectly
P22 XXXXXXXNo FixSystem bus interrupt messages without data and
which receive a Hard failure response may hang
the processor
P23 XX Fixed
SQRTPD and SQRTSD may return QNaN
indefinite instead of negative zero
P24 XXX FixedBus invalidate line requests that returns
unexpected data may result in L1 cache corruption
P25 XFixedMultiprocessor boot protocol may not complete
with an IOQ depth of one