On Wednesday, November 08, 2017 05:28:16 PM Bartlomiej Zolnierkiewicz wrote:

we can see that for some reason PIIX PCI IDE controller is probed
twice and later when we attach ide-cd driver to both instances of hdc
(in parallel) it ends up badly..

Actually it ends up badly later (I don't know exactly yet how we get
into this situation but this is not that important as we know that
the root problem starts much earlier with the double probe of PCI IDE
host controller)..

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics