10.8. Using IPCS to find the failing instruction
Here are the quick steps to find the failing instruction. Most of the time this works well, but there are some variations that cause this to fail, for example, no RTM2WA.
1. | Format the dump using the SUMM FORMAT REGS command.
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2. | Max PF8 to the bottom of this display.
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3. | Find the TCB with a non-zero CMP (completion) value. This often relates to the abend, for example, 0C4.
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4. | Issue the FIND 'TCB: xxxxxxxx' PREV where xxxxxxxx is the TCB identified in STEP 2.
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5. | Scroll down from the start of the TCB data and find the RTM2WA (Recovery Termination Manager Work Area).
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6. | Find the PSW that is in the RTM2WA for that TCB. Also note the ILC (Instruction Length Code) that indicates the length of the instruction ... |
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