uvm_fault(0xffffffff839cc108, 0xffff80000161600a, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      arp_rtrequest+0x6a4:    movzwl  0xc(%rcx,%rbx,1),%ecx
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*  9525   6390      0        0x10  0x4000000    0  syz-executor
arp_rtrequest(ffff8000002a3058,1,ffffef0063b081b0) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline]
arp_rtrequest(ffff8000002a3058,1,ffffef0063b081b0) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226
rtrequest(1,ffff80002a7899a0,0,ffff80002a789910,16) at rtrequest+0xdc1 sys/net/route.c:1114
rtm_output(ffff800001614500,ffff80002a789a48,ffff80002a7899a0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956
route_output(ffffef006f93b800,ffff800010fe1370) at route_output+0xa6a sys/net/rtsock.c:862
route_send(ffff800010fe1370,ffffef006f93b800,0,0) at route_send+0xd7 sys/net/rtsock.c:322
sosend(ffff800010fe1370,0,ffff80002a789bf8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a7674d0,5,ffff80002a789cf0,808,ffff80002a789d90) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002a7674d0,ffff80002a789e40,ffff80002a789d90) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff80002a789e40) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a789e40) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x750d172c760, count: 5
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb> 
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: uvm_fault(0xffffffff839cc108, 0xffff80000161600a, 0, 1) -> e
ddb>