anchao opened a new pull request, #21063:
URL: https://github.com/apache/nuttx/pull/21063
## Summary
Fix the backtrace metadata iterator for mempool interrupt pools.
When walking the interrupt pool, the previous code cast `pool->ibase` to
`struct mempool_backtrace_s *` before adding byte offsets. That made the
pointer arithmetic scale by `sizeof(struct mempool_backtrace_s)` instead of
bytes, so the iterator could visit the wrong metadata address for each
block.
This change keeps the offset calculation byte-based and only casts the final
computed address to `struct mempool_backtrace_s *`.
## Impact
This fixes mempool backtrace walking for interrupt pools when
`CONFIG_MM_BACKTRACE >= 0`.
Expected impact:
- corrects interrupt-pool backtrace metadata lookup
- improves accuracy of mempool task accounting and memory dump paths that
walk
mempool backtrace metadata
- does not change normal allocation/free behavior
- no API, ABI, build-system, documentation, or security impact is expected
## Testing
sim/nsh
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