uname -a: DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026  root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC x86_64
(fix-validation kernel: #1: Wed Oct 14 16:41:52 UTC 2026, rebuilt after applying fix.diff)
guest: dfbsd-qemu QEMU/KVM, 6 vCPU, no DPT SmartRAID hardware (device emulated by the rig)
kernel image symbols (baseline): dpt_intr T 0xffffffff80439670, dpt_action t 0xffffffff80438010,
  dpt_poll t 0xffffffff80439bb0, dptallocccbs t 0xffffffff804375e0 (no KASLR)
CCB under test: 0xfffff801185f0ec0 (xpt_alloc_ccb'd), dccb 0xfffff801185b78e8 (DMA array),
  sp at the tail of the dccb DMA map; completion via real xpt_done -> sim_doneq -> swi_cambio.