kern/178183: ATAPI CDROM fails to attach correctly with ATA_CAM
Andre.Albsmeier at siemens.com
Fri Apr 26 16:10:02 UTC 2013
>Synopsis: ATAPI CDROM fails to attach correctly with ATA_CAM
>Arrival-Date: Fri Apr 26 16:10:01 UTC 2013
>Originator: Andre Albsmeier
>Release: FreeBSD 9.1-STABLE i386
Promise Ultra100 TX2 controller (PDC20268)
ATA_CAM enabled in kernel
The DVD-Writer is connected to the Promise controller.
With ATA_CAM in the kernel, it fails to attach:
(cd2:ata3:0:0:0): got CAM status 0x50
(cd2:ata3:0:0:0): fatal error, failed to attach to device
(cd2:ata3:0:0:0): lost device, 4 refs
(cd2:ata3:0:0:0): removing device entry
It attaches properly with hint.ata.3.mode=PIO4. A harddrive
attached to the Promise controller works as well.
While some Promise controllers are known to have problems
with ATAPI DMA it should be mentioned that the drive
- attaches with FreeBSD-7.4 (of course without ATA_CAM)
- attaches with FreeBSD-9.1 without ATA_CAM
- attaches with FreeBSD-9.1 without ATA_CAM but with atapicam
- attaches with FreeBSD-9.1 with ATA_CAM when connected to the
mainboard's onboard PIIX4 controller.
So it seems to be some problem with ATA_CAM and the
controller but no controller-only issue.
Unknown. If you want me to test something, just drop me note.
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