panic: trap type 4, code=0, pc=ffffffff82b58bfe
Starting stack trace...
panic(ffffffff83312855) at panic+0x1ba sys/kern/subr_prf.c:229
kerntrap(ffff80003c957a00) at kerntrap+0x2eb sys/arch/amd64/amd64/trap.c:486
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
sys_semop(ffff80002a7f1c50,ffff80003c957cb0,ffff80003c957c00) at sys_semop+0x3ae sys/kern/sysv_sem.c:620
syscall(ffff80003c957cb0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c957cb0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x2b5112aa720, count: 251
End of stack trace.