Comment 6 for bug 95830

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Phillip Lougher (phillip-lougher) wrote :

In above Dmesg generated using Parallels build 1970, ata_piix driver is correctly recognising and configuring emulated DVD/CDROM drive.

Using Parallels build 3186, ata_piix driver is not recognising the emulated DVD/CDROM drive, and it is instead erroring as shown in the previously attached Parallels screendump.

So, two separate issues:

1. A change in the hardware emulation by Parallels has broken ata_piix.

2. Previous versions of the kernel (prior to 2.6.20-12) install a driver that correctly recognises the emulated DVD/CDROM driver in the Parallels build 3186. This may be related to changelog comment: "piix: Fix typo that allowed this module to override ata_piix.".