panic: pmap_demote_pde: a wired mapping is missing PG_A
cpuid = 0
time = 3
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe005773b430
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe005773b590
vpanic() at vpanic+0x257/frame 0xfffffe005773b750
panic() at panic+0xb5/frame 0xfffffe005773b810
pmap_demote_pde_locked() at pmap_demote_pde_locked+0x233a/frame 0xfffffe005773b9f0
pmap_advise() at pmap_advise+0x865/frame 0xfffffe005773bb10
vm_map_madvise() at vm_map_madvise+0x875/frame 0xfffffe005773bc50
sys_madvise() at sys_madvise+0x1d8/frame 0xfffffe005773bd10
amd64_syscall() at amd64_syscall+0x4e2/frame 0xfffffe005773bf30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe005773bf30
--- syscall (198, FreeBSD ELF64, __syscall), rip = 0x3a197a, rsp = 0x8260f3f08, rbp = 0x8260f3f80 ---
KDB: enter: panic
[ thread pid 1169 tid 100649 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x25be9d7(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0xfffffe00033eee30
rdx                          0
rbx         0xffffffff827b0760  .str.27
rsp         0xfffffe005773b570
rbp         0xfffffe005773b590
rsi                          0
rdi         0xffffffff81614619  printf+0x149
r8                           0
r9                  0xffffffff
r10                        0x1
r11                          0
r12         0xfffffe0054952780
r13         0xfffffffffffffffe
r14         0xffffffff827b0760  .str.27
r15                          0
rip         0xffffffff815fe7be  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x25be9d7(%rip)
db>