Xseries 382 Machine Check Error Handling; Classification Of Errors - IBM eServer xSeries x382 Hardware Maintenance Manual And Troubleshooting Manual

xSeries 382 machine check error handling

This section gives an overview of the implementation of machine check error
handling on the xSeries 382 server system. For additional details about
Itanium-based system error generation and error handling, refer to the Itanium
Processor Family Error Handling Guide (document number: 249278-002) and the
Itanium System Abstraction Layer Specification (document number: 245359-005).
Both documents can be downloaded from the web at http://developer.intel.com.
The goal of MCA is to contain errors and correct as many as possible before they
propagate to network or permanent storage. If an error cannot be fixed by the
hardware or firmware, and the OS cannot handle it, the machine shall be reset.
MCA errors include ECC, BINIT, BERR, SERR, and PERR. These conditions are
handled by the BIOS through SAL 3.0-compatible services.

Classification of errors

Error events are classified by the processor and platform into three basic groups.
This section provides a summary of the different error types and signaling methods
defined by the Itanium Machine Check Architecture (MCA) and implemented in the
xSeries 382 platform.
Table 3. Sensor types, numbers and names (continued)
Sensor Type
0D (Hot-swap drive sensors)
0D (Hot-swap drive sensors)
0D (Hot-swap drive sensors)
0D (Hot-swap drive sensors)
0D (Hot-swap drive sensors)
0F (POST error)
10 (event logging)
12 (system event)
13 (critical interrupt)
15 (module / board)
23 (watchdog)
C7(OEM)
C (OEM)
C7 (OEM)
C7 (OEM)
C7 (OEM)
C7 (OEM)
C7 (OEM)
C7 (OEM)
C7 (OEM)
Sensor Number Sensor Name
01h SCSI backplane temperature
02h Hot-swap drive 1 status
03h Hot-swap drive 2 status
05h Hot-swap drive 1 present
06h Hot-swap drive 2 present
06h POST error
09h Event logging disabled
12h OEM system boot event PEF action
07h FP Diag Interrupt (Front Panel SD Init)
77h System board interlock
03h BMC watchdog 2
40h Fan Boost Mem Board Temp
41h Fan Boost Mem Board SNC Temp
42h Fan Boost PCI Riser SIOH Temp
43h Fan Boost Peripheral Board AMB Temp
44h Fan Boost PCI Riser Board Temp
45h Fan Boost CPU Area Temp
46h Fan Boost Mem Area Temp
84h Fan Boost microprocessor 1 Temp
85h Fan Boost microprocessor 2 Temp
25
Chapter 3. Diagnostics