Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x80
fault code		= supervisor read data  , page not present
instruction pointer	= 0x20:0xffffffff8103c6f9
stack pointer	        = 0x28:0xfffffe002131c5e0
frame pointer	        = 0x28:0xfffffe002131c610
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		= 3521 (syz-executor.2)
trap number		= 12
panic: page fault
cpuid = 0
time = 196
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe002131c240
vpanic() at vpanic+0x1e0/frame 0xfffffe002131c2a0
panic() at panic+0x43/frame 0xfffffe002131c300
trap_fatal() at trap_fatal+0x4c6/frame 0xfffffe002131c380
trap_pfault() at trap_pfault+0x9f/frame 0xfffffe002131c3f0
trap() at trap+0x44d/frame 0xfffffe002131c510
calltrap() at calltrap+0x8/frame 0xfffffe002131c510
--- trap 0xc, rip = 0xffffffff8103c6f9, rsp = 0xfffffe002131c5e0, rbp = 0xfffffe002131c610 ---
__mtx_assert() at __mtx_assert+0xb9/frame 0xfffffe002131c610
tcp_log_set_id() at tcp_log_set_id+0x819/frame 0xfffffe002131c680
tcp_default_ctloutput() at tcp_default_ctloutput+0x13a4/frame 0xfffffe002131c7d0
tcp_ctloutput() at tcp_ctloutput+0x30f/frame 0xfffffe002131c850
sosetopt() at sosetopt+0x101/frame 0xfffffe002131c8d0
kern_setsockopt() at kern_setsockopt+0x158/frame 0xfffffe002131c950
sys_setsockopt() at sys_setsockopt+0x33/frame 0xfffffe002131c980
amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe002131cab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe002131cab0
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x412e7a, rsp = 0x7fffdffdcf38, rbp = 0x5 ---
KDB: enter: panic
[ thread pid 3521 tid 100602 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why