panic: trap type 4, code=0, pc=ffffffff8143905b
Starting stack trace...
panic(ffffffff82fafe35) at panic+0x1ba sys/kern/subr_prf.c:229
kerntrap(ffff80002be03b80) at kerntrap+0x28b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
sys_semop(ffff80002a57f700,ffff80002be03e30,ffff80002be03d80) at sys_semop+0x45b sys/kern/sysv_sem.c:615
syscall(ffff80002be03e30) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xa572e570490, count: 251
End of stack trace.