Looks like this chipset is not added to our piix. Ill create a patch tomorrow morning.
** Changed in: linux-source-2.6.15 (Ubuntu)
Status: Needs Info => In Progress
** Changed in: linux-source-2.6.15 (Ubuntu)
Assignee: (unassigned) => ChuckShort
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Cannot activate dma on hard drive
https://launchpad.net/malone/bugs/39432