# Guest environment (DF-2420 / DF-2421 / DF-4203 verification, 2026-10-15)

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
kern.osreldate: 600519
cc: 8.3 [DragonFly] Release/2019-02-22

QEMU: qemu-system-x86_64 7.2.22 (Debian), KVM, 4GB RAM, 6 vcpu, i440fx
  - virtio-blk system disk (bootindex=0)  -> root vbd0s1d (hammer2)
  - -device ahci,id=ahcibrd               -> ahci0 at pci0:4:0 irq 11
  - ide-hd on ahcibrd.0 (512MB scratch)   -> ahci0.0 DISK  da0/pass0 (scbus2)
  - ide-cd  on ahcibrd.1                  -> ahci0.1 ATAPI cd0/pass1 (scbus3)

Boot log (dmesg) AHCI lines:
  ahci0: <AHCI-PCI-SATA> port 0xc080-0xc09f mem 0xfebd2000-0xfebd2fff irq 11 at device 4.0 on pci0
  ahci0: Intel hocus pocus
  ahci0: AHCI 1.0 cap 0xc0141f05<S64A,NCQ,SAM>, 6 ports, 32 tags/port, gen 1 (1.5Gbps)
  ahci0.0: Found DISK "QEMU HARDDISK 2.5+" serial="QM00005"
  ahci0.0: tags=32/32 satacap=0100 satacap2=0000 satafea=0000 NCQ=YES capacity=512.00MB
  ahci0.0: f85=4021 f86=3400 f87=4000 WC=enabled RA=notsupp SEC=notsupp
  ahci0.1: Found ATAPI "QEMU DVD-ROM 2.5+" serial="QM00007"
  ahci0.1: tags=0/32 satacap=0100 satacap2=0000 satafea=0000 NCQ=NO capacity=1.00MB

camcontrol devlist:
  <SATA QEMU HARDDISK 2.5+>          at scbus2 target 0 lun 0 (da0,sg0,pass0)
  <QEMU QEMU DVD-ROM 2.5+>           at scbus3 target 0 lun 0 (sg1,pass1,cd0)

Device perms: /dev/pass0 /dev/pass1 crw------- root:operator (0600)
              /dev/da0              crw-r----- root:operator
              /dev/mem /dev/kmem    crw-r----- root:kmem
securelevel: -1
NOTE: unlike the stock audit guest (virtio-blk root, no ahci), this run
attaches a live AHCI controller + disk + ATAPI CD so the production ahci_cam.c
paths execute against real hardware. The controller/disk are added at QEMU
launch (QEMU's AHCI bus does not support drive hotplug; a runtime device_add
of ide-hd fails with "Bus 'ahcibrd.0' does not support hotplugging").
Guest kernel: stock #0 Jul 2 2026 X86_64_GENERIC (kernel symtab present in
/boot/kernel/kernel, no KASLR: link-time symbol addresses are runtime
addresses).