swapper: Fatal trap 12: page fault while in kernel mode

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From: Marco Beishuizen <mbeis.bsd_at_xs4all.nl>
Date: Mon, 06 Jan 2025 13:50:08 UTC

Hi,

Today I noticed in my dmesg:

...
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x0
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0x4e5f14b8
stack pointer           = 0x28:0xffffffff82cbacc8
frame pointer           = 0x28:0x0
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         = 0 (swapper)
rdi: ffffffff82cbadbc rsi: ffffffff812fa801 rdx: 0000000000000000
rcx: 00000000600fd0dc  r8: 0000000000000000  r9: 8080808080808080
rax: 0000000000000000 rbx: ffffffff82cbae78 rbp: 0000000000000000
r10: 00000000600fd000 r11: 00000000000007e9 r12: 00000000000fd0dc
r13: fffff80103e6ec19 r14: fffff80103e4e800 r15: 0000000000001830
trap number             = 12
EFI RT page fault
...

This shows every time the system boots. The system boots and runs without 
issues though.

I'm running FreeBSD yokozuna.lan 14.2-STABLE FreeBSD 14.2-STABLE 
stable/14-n270047-589cf0f3e26f YOKOZUNA amd64

Does anyone know what happens here? Thanks in advance,

Marco