Comment 4 for bug 140906

Thank you for taking the time to report this bug and helping to make Ubuntu better. I'm reassigning to the kernel-team for their consideration. I'm also updating this report with the mainline kernel git commit id and changelog regarding the patch from James Bottomley you reference. Thanks!

commit 2302827c95fe0f441025acd5133e532d2eef322b
Author: James Bottomley <email address hidden>
Date: Sat Sep 22 08:40:09 2007 -0500

    [SCSI] scsi_transport_spi: fix domain validation failure from incorrect widt

    Domain Validation in the SPI transport class is failing on boxes with
    damaged cables (and failing to the extent that the box hangs). The
    problem is that the first test it does is a cable integrity test for
    wide transfers and if this fails, it turns the wide bit off. The
    problem is that the next set of tests it does turns wide back on
    again, with the result that it runs through the entirety of DV with a
    known bad setting and then hangs the system.

    The attached patch fixes the problem by physically nailing the wide
    setting to what it deduces it should be for the whole of Domain
    Validation.

    Signed-off-by: James Bottomley <email address hidden>