Technical data

System Dump Analyzer
SET CPU
SET CPU
Selects a processor to become the SDA current CPU.
Format
SET CPU cpu-id
Parameter
cpu-id
Numeric value from 00
16
to 1F
16
indicating the identity of the processor to be
made the current CPU. If you specify a value outside this range or a 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
Qualifiers
None.
Description
When you invoke SDA to examine a system dump, the SDA current CPU context
defaults to that of the processor that caused the system to fail. When analyzing a
crash from a multiprocessing system, you might find it useful at times to examine
the context of another processor in the configuration.
The SET CPU command changes the current SDA CPU context to that of the
processor indicated by cpu-id. The CPU specified by this command becomes the
current CPU for SDA until you exit SDA or change SDA CPU context by issuing
one of the following commands:
SET CPU cpu-id
SHOW CPU cpu-id
SHOW CRASH
The following commands also change SDA CPU context if the name or index
number (nn) refers to a current process:
SET PROCESS name
SET PROCESS/INDEX=nn
SHOW PROCESS name
SHOW PROCESS/INDEX=nn
Changing CPU context can cause an implicit change in process context under the
following circumstances:
• If there is a current process on the CPU made current, SDA changes its
process context to that of that CPU’s current process.
• If there is no current process on the CPU made current, SDA process context
is undefined and no process-specific information is available until you set SDA
process context to that of a specific process.
See Section 4 for further discussion on the way in which SDA maintains its
context information.
SDA–71