Technical data

System Dump Analyzer
SHOW CPU
SHOW CPU
Displays information about the state of a processor at the time of the system
failure.
Format
SHOW CPU [cpu-id]
Parameter
cpu-id
Numeric value from 00 to 1F
16
indicating the identity of the processor for which
context information is to be displayed. If you specify a value outside this range,
or you specify the cpu-id of a processor that was not active at the time of the
system failure, SDA displays the following message:
%SDA-E-CPUNOTVLD, CPU not booted or CPU number out of range
If you use the cpu-id parameter, the SHOW CPU command performs an implicit
SET CPU command, making the processor indicated by cpu-id the current CPU
for subsequent SDA commands. (See the description of the SET CPU command
and Section 4 for information about how this can affect the CPU context—and
process context—in which SDA commands execute.)
Qualifiers
None.
Description
The SHOW CPU command displays crash information about the processor
specified by cpu-id or, by default, the SDA current CPU, as defined in Section 4.
You cannot use the SHOW CPU command when examining the running system
with SDA.
The SHOW CPU command produces several displays. First, there is a brief
description of the crash and its environment that includes the following:
• Reason for the bugcheck
• Name of the currently executing process. If no process has been scheduled on
this processor, SDA displays the following message:
Process currently executing: no processes currently scheduled on the processor
• File specification of the image executing within the current process (if there is
a current process)
• Interrupt priority level (IPL) of the processor at the time of the system failure
Next, the general registers display shows the contents of the processor’s
general-purpose registers (R0 through R11) and the AP, FP, SP, PC, and PSL at
the time of the crash.
The processor registers display consists of the following three parts:
• Common processor registers
• Processor-specific registers
SDA–94