Ubuntu kernels are unusable with the Marvell 6081 SATA chipset

[scott]

Binary package hint: linux-image-2.6.27-11-server

The available Ubuntu kernels are unusable on servers containing the Marvell 6081 SATA chipset (e.g. Sun x4500's.)

A fix was merged in stable branch 2.6.28.4:

commit fc304eb4ccc0227d3230ce7a11b31f2d2bd43792
Author: Mark Lord <email address hidden>
Date: Mon Jan 19 18:04:37 2009 -0500

    sata_mv: fix 8-port timeouts on 508x/6081 chips

    commit b0bccb18bc523d1d5060d25958f12438062829a9 upstream.

    Fix a longstanding bug for the 8-port Marvell Sata controllers (508x/6081),
    where accesses to the upper 4 ports would cause lost-interrupts / timeouts
    for the lower 4-ports. With this patch, the 6081 boards should finally be
    reliable enough for mainstream use with Linux.

    Signed-off-by: Mark Lord <email address hidden>
    Signed-off-by: Jeff Garzik <email address hidden>
    Signed-off-by: Greg Kroah-Hartman <email address hidden>

Here's the original bug report that resulted in the fix:
https://bugzilla.redhat.com/process_bug.cgi

Can this patch be backported?:

[scott (scott.phelps)]

Is there anything I can do to get this going? I'd be happy to assist in any way or do any work needed to get this patch merged.

[Bryan Wu (cooloney)]

This patch is already in Jaunty kernel now, since it is duplicate with bug #263160. Please try Jaunty and let us know the result.

-Bryan