panic: trap type 4, code=0, pc=ffffffff81020aa0
Starting stack trace...
panic(ffffffff8242ac58) at panic+0x155 sys/kern/subr_prf.c:233
kerntrap(ffff8000280376c0) at kerntrap+0x1b7 sys/arch/amd64/amd64/trap.c:313
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
done_flush() at done_flush+0x38
vm_run(ffff800028037b40) at vm_run+0x302 sys/arch/amd64/amd64/vmm.c:4295
VOP_IOCTL(fffffd806e8d4908,c0205602,ffff800028037b40,1,fffffd807f7d8780,ffff80002166e540) at VOP_IOCTL+0x8d sys/kern/vfs_vops.c:264
vn_ioctl(fffffd8069d3c540,c0205602,ffff800028037b40,ffff80002166e540) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:531
sys_ioctl(ffff80002166e540,ffff800028037c58,ffff800028037cb0) at sys_ioctl+0x49e
syscall(ffff800028037d20) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x732ab14ab60, count: 247
End of stack trace.