piix migration to ata_piix breaks PATA: CRX880A

[Michael Morgan]

With distributions (ie. Ubuntu's Gutsy Gibbon) now deprecating the 'piix' driver,
we are forced to use the 'ata_piix' instead. This driver, however, does not work
properly with Sony's CRX880A CD-ROM.

This causes problems with certain Dell Lanai (Inspiron 1420) laptops, which
come standard with this CD-ROM. The issue has been worked around by
using the 'break=top' kernel directive, and executing 'modprobe piix; exit'.
However, in Gutsy the piix driver will not be included anymore.

The ata_piix driver therefore needs a patch to fix the CRX880A for Gutsy.

[Colin Watson (cjwatson)]

This doesn't seem like ubiquity's responsibility; it runs much later. A workaround might be possible in casper (though I expect that would break other systems), but it's really the responsibility of the kernel to declare proper modaliases so that hardware detection works.

Could you attach 'lspci -vvnn'?

[Michael Morgan (mikmorg)]

You're absolutely right - I'm sorry for not updating this bug earlier on this point. I did not realize I put this in Ubiquity - it should be casper.

I don't have a Lanai with me at the moment, but I can tell you that the device that isn't recognized by ata_piix is the CRX880A. I'll let you know as soon as I get ahold of a Lanai, what the PCI #/info is.

Thanks.

[Michael Morgan (mikmorg)]

Attached is the lspci -vvnn

[Michael Morgan (mikmorg)]

Should casper be attempting to load every module it can for meda such as CD-ROMs, so that it doesn't miss any? It seems like this is what the d-i installer does.

[Michael Morgan (mikmorg)]

I have found that piix is deprecated, in light of ata_piix. ata_piix gets loaded by casper, and 'piix' doesn't exist in Gutsy anymore. This is now a kernel issue.

[Michael Morgan (mikmorg)]

This bug is now retitled as a bug with ata_piix, having migrated from piix.

[Matti Lindell (mlind)]

target gutsy's kernel

[Sitsofe Wheeler (sitsofe)]

(Might be similar to Bug #94119 )

[Christian Vogler (christian-vogler)]

Can someone please apply the patches from the current git snapshot of the kernel? They fix the Santa Rosa issues with CDROM drives. In particular, the patch fragment below does the trick, taken from the git snapshot. As soon as I apply it to my gutsy installation and recompile the ata_piix driver, the CDROM drive is recognize and works just fine with anything I throw at it, including CD and DVD burning.

[Henrik Nilsen Omma (henrik)]

Confirming and setting milestone as there is a patch available.

[Tim Gardner (timg-tpi)]

http://launchpadlibrarian.net/8656831/patch is already in Gutsy. Commit a03cf181b9c19b4e95d847cd394c7ffaf5109d06

[joenix (woutersj)]

I just noticed the patch has been updated:
http://www.mail-archive.com/linux-ide%40vger.kernel.org/msg07432.html

ich_pata_100 should be ich_pata_133, as explained here:
http://www.mail-archive.com/linux-ide%40vger.kernel.org/msg07417.html

[Timothy R. Chavez (timrchavez)]

The bug task for the somerville project has been removed by an automated script. This bug has been cloned on that project and is available here: https://bugs.launchpad.net/bugs/1305716