panic: trap type 4, code=0, pc=ffffffff828e9c89
Starting stack trace...
panic(ffffffff82fb23e9) at panic+0x1ba sys/kern/subr_prf.c:229
kerntrap(ffff80003763f600) at kerntrap+0x28b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
sys_semop(ffff8000376fcce0,ffff80003763f8b0,ffff80003763f800) at sys_semop+0x3f9 sys/kern/sysv_sem.c:602
syscall(ffff80003763f8b0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc12711e8210, count: 251
End of stack trace.