fpanic: trap type 4, code=0, pc=ffffffff81833ceb
Starting stack trace...
panic(ffffffff8332de01) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff80003c439900) at kerntrap+0x29b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
sys_semop(ffff80002a297210,ffff80003c439bb0,ffff80003c439b00) at sys_semop+0x45b sys/kern/sysv_sem.c:615
syscall(ffff80003c439bb0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c439bb0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x99470b483f0, count: 251
End of stack trace.
syncing disks...atal protection fault in supervisor mode
trap type 4 code 0 rip ffffffff81833ceb cs 8 rflags 10246 cr2 200000000140 cpl 0 rsp ffff80003c4399b0
gsbase 0xffff8000299ddff0  kgsbase 0x0