panic: pmap_growkernel: no memory to grow kernel
cpuid = 0
time = 122
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0030b08260
vpanic() at vpanic+0x1e0/frame 0xfffffe0030b082c0
panic() at panic+0x43/frame 0xfffffe0030b08320
pmap_growkernel() at pmap_growkernel+0x4b6/frame 0xfffffe0030b08360
vm_map_insert() at vm_map_insert+0x38c/frame 0xfffffe0030b08420
vm_map_find() at vm_map_find+0x9e1/frame 0xfffffe0030b08510
kva_import() at kva_import+0x5f/frame 0xfffffe0030b08560
vmem_xalloc() at vmem_xalloc+0x711/frame 0xfffffe0030b08650
vmem_alloc() at vmem_alloc+0xe3/frame 0xfffffe0030b086b0
kva_alloc() at kva_alloc+0x37/frame 0xfffffe0030b086e0
vm_thread_new() at vm_thread_new+0x132/frame 0xfffffe0030b08830
thread_alloc() at thread_alloc+0x4f/frame 0xfffffe0030b08860
fork1() at fork1+0x6ba/frame 0xfffffe0030b08920
sys_fork() at sys_fork+0x56/frame 0xfffffe0030b08980
amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe0030b08ab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0030b08ab0
--- syscall (2, FreeBSD ELF64, sys_fork), rip = 0x2000028d, rsp = 0x7fffdfffdeb8, rbp = 0x8 ---
KDB: enter: panic
[ thread pid 28070 tid 104637 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why