{
  "finding_id": "DF-4258",
  "verdict": "inconclusive",
  "impact_source_level": "unbounded busy-wait holding ifp->if_serializer — interface wedge from root ioctl, boot hang with hung PHY, ISR-context hard stall",
  "reproduce": {
    "build": "n/a",
    "run": "on a machine with a Myson NIC whose PHY BMCR sticks at 0xFFFF / never completes reset: ifconfig my0 media autoselect",
    "expected": "ifconfig never returns; no watchdog fires (serializer held); boot variant hangs at device probe"
  },
  "kernel_refs": [
    "sys/dev/netif/my/if_my.c:377-379",
    "sys/dev/netif/my/if_my.c:946",
    "sys/dev/netif/my/if_my.c:1203-1204",
    "sys/dev/netif/my/if_my.c:1508-1511"
  ],
  "artifacts": ["trigger.sh", "env.txt", "VERDICT.md", "fix.diff", "manifest.json", "verdict.json"]
}