> > That is, all 8250 serial devices' console pointer are same, they point to univ8250_console. > Okay, So that I see this and the unbalanced acquire/ release part with the attached patch. I leave it to John… Btw. You don't see kernel log output on ttyS4 + ttyS5, right? Just a login prompt. > > Sebastian Right. At that time, only ttyS0 is console and nbcon. Thanks, Junxiao
