System Troubleshooting and Diagnostics
5.2 Product Fault Management and Symptom-Directed Diagnosis
5.2.8 Interpreting DMA
Host Transaction Faults Using
ANALYZE/ERROR
Some kernel errors may result in two or more entries being logged. If the
SHAC DSSI adapters or the SGEC Ethernet controller or other CDAL device
(residing on the processor module) encounter host main memory uncorrectable
ECC errors, main memory NXMs or CDAL parity errors or timeouts, more
than one entry results. Usually there will be one Polled Error entry logged by
the host, and one or more Device Attention and other assorted entries logged
by the device drivers.
In these cases the processor module or one of the four memory modules are
the most likely cause of the errors. Therefore, it is essential to analyze Polled
Error entries, since a polled entry usually represents the source of the error
versus other entries, which are simply aftereffects of the original error.
Example 5–8 provides an abbreviated error log for a polled error. Example 5–9
provides an example of a device attention entry.
Example 5–8 Error Log Entry Indicating Polled Error
V A X / V M S
SYSTEM ERROR REPORT
COMPILED 12-JUN-1993 05:32:21
PAGE
1.
******************************* ENTRY
2. *******************************
ERROR SEQUENCE 15.
LOGGED ON:
SID 13000202
DATE/TIME 12-JUN-1993 05:22:00.90
SYS_TYPE 01430701
SYSTEM UPTIME: 0 DAYS 00:27:48
SCS NODE:
VAX/OpenVMS V5.5-2HW
POLLED ERROR
KA692-A
CPU FW REV# 2.
CONSOLE FW REV# 4.3
REVISION
00000000
SYSTAT
00000001
ATTEMPTING RECOVERY
FLAGS
00000006
memory subpacket
KA692 subpacket
KA692 REGISTER SUBPACKET
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5–30 System Troubleshooting and Diagnostics
