vkernel pid=32387
=== console after mount attempt ===
sh: can't access tty; job control turned off
# echo VK-SHELL-READY
VK-SHELL-READY
# /bin/vkmount /dirfs-host /hostroot
dirfs mounted: /dirfs-host -> /hostroot
# === swapped: /dirfs-host is now a dangling symlink ===
lrwxr-xr-x  1 root  wheel         16 Sep  8 17:47 dirfs-host -> /nonexistent-xyz
drwxr-xr-x  1 root  wheel          0 Sep  8 17:47 dirfs-host.real
=== console tail after trigger ===
md0: MBR magic not found; assume a COMPATIBILITY_SLICE (s0)
ipfw2 initialized, default to accept, logging disabled
DUMMYNET initialized (011031)
CAM: Configuring 0 busses
CAM: finished configuring all busses
Mounting root from ufs
ffs_mountroot: can't find rootvp
Root mount failed: 6
Mounting root from ufs:vkd0s0a
no disk named 'vkd0s0a'
setrootbyname failed
ffs_mountroot: can't find rootvp
Root mount failed: 6
Mounting root from ufs:vkd0s1a
DMA space used: 0k, remaining available: 0k
Mounting devfs
Cannot read termcap database;
using dumb terminal settings.
sh: can't access tty; job control turned off
# echo VK-SHELL-READY
VK-SHELL-READY
# /bin/vkmount /dirfs-host /hostroot
dirfs mounted: /dirfs-host -> /hostroot
# echo MOUNT-DONE
MOUNT-DONE
# ls /hostroot
ls: /hostroot: No such file or directory
# echo TRAVERSED
TRAVERSED
# RESULT: vkernel still alive