debug-agent-locate-kernel
Identify which GPU kernel is faulting/hanging in ATOM via rocm-debug-agent (for faults/asserts) or rocgdb (for silent livelocks). debug-agent dumps wave registers + faulting PC + (with --save-code-objects) disassembled code object on memory faults / ASSERT_TRAP. rocgdb attaches to a live process and lists in-flight `info dispatches` + HSA `info queues` — works when the kernel isn't faulting but just stuck (e.g. atomic-counter deadlock). Use when: server crashes with "Memory access fault by GPU node-N", server hangs with GPU at 100% but no token output, kernel asserting `s_trap`, or `HIP_LAUNCH_BLOCKING=1` makes a hang vanish. Do NOT use for: numerical bugs (use dump-bisect-debug), compile errors, OOM.
Informações da origem
- Repositório
- ROCm/ATOM
- Última atividade na origem
- 6 de junho de 2026 às 10:53
- Idioma detectado do SKILL.md
- inglês
- Estrelas
- 205
- Forks
- 177
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| name | debug-agent-locate-kernel |
|---|---|
| description | Identify which GPU kernel is faulting/hanging in ATOM via rocm-debug-agent (for faults/asserts) or rocgdb (for silent livelocks). debug-agent dumps wave registers + faulting PC + (with --save-code-objects) disassembled code object on memory faults / ASSERT_TRAP. rocgdb attaches to a live process and lists in-flight `info dispatches` + HSA `info queues` — works when the kernel isn't faulting but just stuck (e.g. atomic-counter deadlock). Use when: server crashes with "Memory access fault by GPU node-N", server hangs with GPU at 100% but no token output, kernel asserting `s_trap`, or `HIP_LAUNCH_BLOCKING=1` makes a hang vanish. Do NOT use for: numerical bugs (use dump-bisect-debug), compile errors, OOM. |
