Using anonymous memory (512 MB)
Copyright (c) 2003-2026 The DragonFly Project.
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
DragonFly 6.5-DEVELOPMENT #1: Fri Oct  2 05:54:28 UTC 2026
    root@dfbsd:/usr/obj/usr/src/sys/VKERNEL64
real memory = 536870912 (524288K bytes)
avail memory = 517398528 (505272K bytes)
DragonFly/MP: Multiprocessor
 cpu0 (BSP)
 cpu1 (AP)
CPU Topology: cores_per_chip: 1; threads_per_core: 1; chips_per_package: 2;
Initialize MI interrupts for 2 cpus
initclocks
SMP: AP CPU #1 Launched!
WARNING: KERNBASE being used
interrupt uses mplock: swi_taskq
wdog: In-kernel automatic watchdog reset enabled
vkd0: <Virtual disk> 
vkd0: 1200MB (2457600 512 byte sectors)
md0: Malloc disk
vkd0: MBR magic not found; assume a COMPATIBILITY_SLICE (s0)
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:vkd0s0a
no disk named 'vkd0s0a'
setrootbyname failed
ffs_mountroot: can't find rootvp
Root mount failed: 6
Mounting root from ufs:vkd0s1a
no disk named 'vkd0s1a'
setrootbyname failed
ffs_mountroot: can't find rootvp
Root mount failed: 6

Manual root filesystem specification:
  <fstype>:<device>  Specify root (e.g. ufs:da0s1a)
  ?                  List valid disk boot devices
  panic              Just panic
  abort              Abort manual input

mountroot> ufs:vkd0
Mounting root from ufs:vkd0
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
# id
sh: id: not found
# /root/poc
DF5289: /dev/upmap mapped at 0x8442000
DF5289: expect panic 'vm_page_unwire: invalid wire count' at cycle 1 munlock
DF5289: cycle 0 mlock   = 0 errno=0 (Undefined error: 0)
DF5289: cycle 0 munlock ... 
DF5289: cycle 0 munlock = 0 errno=0 (Undefined error: 0)
DF5289: cycle 1 mlock   = 0 errno=0 (Undefined error: 0)
DF5289: cycle 1 munlock ... 
panic: vm_page_unwire: invalid wire count: 0
cpuid = 0
Trace beginning at frame 0x801433d7d0
vm_page_unwire() at 0x6f5e84
vm_page_unwire() at 0x6f5e84
vm_fault_unwire() at 0x6e1c94
vm_map_user_wiring() at 0x6e681a
sys_munlock() at 0x6eaf00
syscall2() at 0x71f2a4
Debugger("panic")

CPU0 stopping CPUs: 0x0000000000000002
 stopped
Stopped at      0x71cad9:       movb    $0,0x9f85cc(%rip)
db> panic: vconsgetc: EOF on console 0 4
cpuid = 0
boot() called on cpu#0
Uptime: 2m24s
vkernels don't support dumps