panic: trap type 4, code=0, pc=ffffffff81b89931
Starting stack trace...
panic(ffffffff832fa0c2) at panic+0x1ba sys/kern/subr_prf.c:229
kerntrap(ffff800039d0d3b0) at kerntrap+0x28b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
icmp_mtudisc_timeout(fffffd806b96f700,0) at icmp_mtudisc_timeout+0x111 sys/netinet/ip_icmp.c:1085
rt_timer_queue_flush(ffffffff838b46c8) at rt_timer_queue_flush+0x281 sys/net/route.c:1589
ip_sysctl(ffff800039d0d66c,1,0,ffff800039d0d698,200000001300,4) at ip_sysctl+0x7b3 sys/netinet/ip_input.c:1749
net_sysctl(ffff800039d0d664,3,0,ffff800039d0d698,200000001300,4,e8a40c2439840100) at net_sysctl+0x64a sys/kern/uipc_domain.c:256
sys_sysctl(ffff80003c9487e0,ffff800039d0d7d0,ffff800039d0d720) at sys_sysctl+0x425 sys/kern/kern_sysctl.c:-1
syscall(ffff800039d0d7d0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800039d0d7d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x11a7d2ca460, count: 247
End of stack trace.