PetervdPerk-NXP opened a new pull request, #17847:
URL: https://github.com/apache/nuttx/pull/17847
## Summary
This adds a Kconfig option to optionally track the allocating context of
each IOB (task PID or ISR). The extra metadata makes it much easier to diagnose
IOB leaks, starvation, and ownership/lifetime bugs across task/ISR boundaries
without changing the IOB API seen by callers.
Example
```
nsh> cat /proc/iobinfo
ntotal nfree nwait nthrottle
24 0 2 0
00 0x2024f77c -> 0x2024f850 pid=1306 flags=0x01
01 0x2024f850 -> 0 pid=1306 flags=0x01
02 0x2024f924 -> 0x2024f77c pid=1306 flags=0x01
03 0x2024f9f8 -> 0x2024f924 pid=1306 flags=0x01
04 0x2024facc -> 0x2024f9f8 pid=1306 flags=0x01
05 0x2024fba0 -> 0x2024facc pid=1306 flags=0x01
06 0x2024fc74 -> 0x2024fba0 pid=1306 flags=0x01
07 0x2024fd48 -> 0 pid=1306 flags=0x01
08 0x2024fe1c -> 0x2024fd48 pid=1306 flags=0x01
09 0x2024fef0 -> 0x2024fe1c pid=1306 flags=0x01
10 0x2024ffc4 -> 0x2024fef0 pid=1306 flags=0x01
11 0x20250098 -> 0x2024ffc4 pid=1306 flags=0x01
12 0x2025016c -> 0x20250098 pid=1306 flags=0x01
13 0x20250240 -> 0x2025016c pid=1306 flags=0x01
14 0x20250314 -> 0x20250240 pid=1306 flags=0x01
15 0x202503e8 -> 0 pid=1306 flags=0x01
16 0x202504bc -> 0x202503e8 pid=1306 flags=0x01
17 0x20250590 -> 0x202504bc pid=1306 flags=0x01
18 0x20250664 -> 0x20250590 pid=1306 flags=0x01
19 0x20250738 -> 0x20250664 pid=1306 flags=0x01
20 0x2025080c -> 0x20250738 pid=1306 flags=0x01
21 0x202508e0 -> 0x2025080c pid=1306 flags=0x01
22 0x202509b4 -> 0x202508e0 pid=1306 flags=0x01
23 0x20250a88 -> 0 pid=1306 flags=0x01
```
## Impact
Kconfig debug toggle
## Testing
IMXRT
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