DF-4738 environment
guest: DragonFly dfbsd 6.5-DEVELOPMENT #0: Thu Jul 2 06:02:54 UTC 2026 kernel built by root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC x86_64
compiler: cc 8.3 [DragonFly] Release/2019-02-22
kernel source: sys/dev/pccard/pccbb/pccbb_pci.c (read-only audit tree, 664 LOC)
cbb(4) is compiled into X86_64_GENERIC but no CardBus bridge PCI device exists on the guest (no class 0x0607)