panic: trap type 4, code=0, pc=ffffffff82b9ac7b Starting stack trace... panic(ffffffff833e7948) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80002a361f50) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0x0, count: 254 End of stack trace .