panic: trap type 4, code=0, pc=ffffffff824b857e
Starting stack trace...
panic(ffffffff8289e941) at panic+0x16f sys/kern/subr_prf.c:229
kerntrap(ffff8000374189a0) at kerntrap+0x1d7 sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
ktrops(ffff80002a1bbd58,deaf4152deaf4152,0,80000100,fffffd80671ed1f0,fffffd807f7d7000) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline]
ktrops(ffff80002a1bbd58,deaf4152deaf4152,0,80000100,fffffd80671ed1f0,fffffd807f7d7000) at ktrops+0x4e sys/kern/kern_ktrace.c:561
doktrace(fffffd80671ed1f0,4,100,ffffffff,ffff80002a1bbd58) at doktrace+0x428 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline]
doktrace(fffffd80671ed1f0,4,100,ffffffff,ffff80002a1bbd58) at doktrace+0x428 sys/kern/kern_ktrace.c:493
sys_ktrace(ffff80002a1bbd58,ffff800037418db0,ffff800037418d00) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549
syscall(ffff800037418db0) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff800037418db0) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x857fd5b2710, count: 249
End of stack trace.