Backtrace:
db:1:pfs> bt
Tracing pid 72793 tid 100228 td 0xfffffe00d0dae3a0
kdb_enter() at kdb_enter+0x32/frame 0xfffffe00d0bc3960
vpanic() at vpanic+0x183/frame 0xfffffe00d0bc39b0
panic() at panic+0x43/frame 0xfffffe00d0bc3a10
trap_fatal() at trap_fatal+0x409/frame 0xfffffe00d0bc3a70
trap_pfault() at trap_pfault+0x4f/frame 0xfffffe00d0bc3ad0
calltrap() at calltrap+0x8/frame 0xfffffe00d0bc3ad0
--- trap 0xc, rip = 0xffffffff8128b0d7, rsp = 0xfffffe00d0bc3ba0, rbp = 0xfffffe00d0bc3bc0 ---
free_pv_entry() at free_pv_entry+0x47/frame 0xfffffe00d0bc3bc0
pmap_remove_pte() at pmap_remove_pte+0x1c4/frame 0xfffffe00d0bc3c20
pmap_remove_ptes() at pmap_remove_ptes+0xdc/frame 0xfffffe00d0bc3c80
pmap_remove() at pmap_remove+0x53e/frame 0xfffffe00d0bc3d00
vm_map_delete() at vm_map_delete+0x1b2/frame 0xfffffe00d0bc3d70
kern_munmap() at kern_munmap+0x90/frame 0xfffffe00d0bc3e00
amd64_syscall() at amd64_syscall+0x109/frame 0xfffffe00d0bc3f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00d0bc3f30
--- syscall (73, FreeBSD ELF64, munmap), rip = 0x230aa0651eca, rsp = 0x820adf498, rbp = 0x820adfbb0 ---
Panic:
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 02
fault virtual address = 0xfffffffff5555570
fault code = supervisor write data, page not present
instruction pointer = 0x20:0xffffffff8128b0d7
stack pointer = 0x28:0xfffffe00d0bc3ba0
frame pointer = 0x28:0xfffffe00d0bc3bc0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 72793 (php-cgi)
rdi: fffffe00d13f8530 rsi: 0 rdx: feaaaaab
rcx: fffffffffeaaaaab r8: fffffe00d0bc3ca8 r9: fffffe00d0bc3cc8
rax: 10000000000 rbx: 0 rbp: fffffe00d0bc3bc0
r10: 7fffffff000 r11: 0 r12: fffffe0010007300
r13: 80000000399ff467 r14: fffffe00d13f8530 r15: 40
trap number = 12
panic: page fault
cpuid = 1
time = 1689655504
KDB: enter: panic
Nothing very revealing there.
You do have a lot of link state changes shown in the message buffer but that could have been over a long period?
Steve