panic: trap type 4, code=0, pc=ffffffff81c54a42
Starting stack trace...

panic(ffffffff8330a8af) at panic+0x1ba sys/kern/subr_prf.c:229
kerntrap(ffff80002a8b4d40) at kerntrap+0x2eb sys/arch/amd64/amd64/trap.c:486
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
sys_msgrcv(ffff80002a7f0cf0,ffff80002a8b4f70,ffff80002a8b4ec0) at sys_msgrcv+0x3f2 msg_copyout sys/kern/sysv_msg.c:639 [inline]
sys_msgrcv(ffff80002a7f0cf0,ffff80002a8b4f70,ffff80002a8b4ec0) at sys_msgrcv+0x3f2 sys/kern/sysv_msg.c:349
syscall(ffff80002a8b4f70) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a8b4f70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x428bb8f05b0, count: 251
End of stack trace.
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