panic: pmap_growkernel: no memory to grow kernel
cpuid = 0
time = 4324
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe002b21cf10
vpanic() at vpanic+0x1e0/frame 0xfffffe002b21cf70
panic() at panic+0x43/frame 0xfffffe002b21cfd0
pmap_growkernel() at pmap_growkernel+0x4b6/frame 0xfffffe002b21d010
vm_map_insert() at vm_map_insert+0x3a2/frame 0xfffffe002b21d0d0
vm_map_find() at vm_map_find+0x9e1/frame 0xfffffe002b21d1c0
kva_import() at kva_import+0x5f/frame 0xfffffe002b21d210
vmem_xalloc() at vmem_xalloc+0x711/frame 0xfffffe002b21d300
kva_import_domain() at kva_import_domain+0x68/frame 0xfffffe002b21d350
vmem_xalloc() at vmem_xalloc+0x711/frame 0xfffffe002b21d440
vmem_alloc() at vmem_alloc+0xe3/frame 0xfffffe002b21d4a0
kmem_malloc_domainset() at kmem_malloc_domainset+0xa1/frame 0xfffffe002b21d510
keg_alloc_slab() at keg_alloc_slab+0x15a/frame 0xfffffe002b21d570
zone_import() at zone_import+0x24d/frame 0xfffffe002b21d640
uma_zalloc_arg() at uma_zalloc_arg+0xa66/frame 0xfffffe002b21d6f0
malloc() at malloc+0xe1/frame 0xfffffe002b21d760
fdgrowtable() at fdgrowtable+0xc9/frame 0xfffffe002b21d7c0
fdinit() at fdinit+0xcc/frame 0xfffffe002b21d800
fdcopy() at fdcopy+0x2f/frame 0xfffffe002b21d860
fork1() at fork1+0x1011/frame 0xfffffe002b21d920
sys_pdfork() at sys_pdfork+0x62/frame 0xfffffe002b21d980
amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe002b21dab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe002b21dab0
--- syscall (518, FreeBSD ELF64, sys_pdfork), rip = 0x20000205, rsp = 0x7fffdfffdeb8, rbp = 0xa ---
KDB: enter: panic
[ thread pid 11315 tid 101938 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why