Thread: Assembler

Reading a dump - where do you actually start?

Started by Kayla • user3 replies158 viewsLast activity 1 month ago
Post #1
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Kayla
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Posted: Jul 12, 2026, 12:47 PM

Got handed an SVC dump from a system abend. Everyone says "look at the PSW" like that means something to me yet.

For an application-level problem (not sysprog mystery), what is the first 10 minutes of your dump reading ritual?

Post #2
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Rick
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Posted: Jul 12, 2026, 2:47 PM

Find the failing TCB, note the abend code and PSW address, map that to the load module + offset, then go to the compile listing. Do not wander the whole dump first.

If you have Fault Analyzer / Abend-Aid, start there and only dig raw when the tool is wrong.

Post #3
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Tom
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Posted: Jul 12, 2026, 8:47 PM

Night shift version: confirm it is not a known recurring offset we already have a PTF for. Saves hours of heroics.

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