YueGuobin 3b8172cbc8
docs(iou): record the IOU kernel datapath and its spec
* docs/features/iou-kernel-datapath.md: architecture (one irreducible
  userspace hop on the fabric leg, kernel link segment), datapath
  selection, the anchor lifecycle with the reverse-of-QEMU stop order,
  capture/markers/filters, relay fallback, and the verified numbers (an
  isolated server with two IOU nodes behind a fake ELF image, the test
  playing the IOL fabric: 64/64 kernel, 62/62 relay).
* docs/design/ubridge-iol-tap-anchor-spec.md: delivered — implemented on
  the ubridge fork's feature/iol-tap-anchor branch (both commands, the
  listener hardening, plus releasing every port NIO on iol_bridge delete
  even when the bridge was not running), with the implementation notes
  that came back (208 vs the older 214 for a missing bridge; one perror
  line per frame dropped on a down anchor).
* The Docker/QEMU feature docs point at it from their roadmaps.
2026-10-06 00:21:09 +08:00
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