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    SubjectRe: "Fix ATAPI transfer lengths" causes CD writing regression
    On Tue, 30 Oct 2007 19:21:29 +0000
    Daniel Drake <dsd@gentoo.org> wrote:

    > Alan Cox wrote:
    > > I would guess Brasero is issuing a command with the length of data
    > > wrongly set. In the old code that might well just produce errors of the
    > > "Umm wtf is this data left over for ?", with the new code the drive is
    > > likely to change state as it knows the transfer size and that will
    > > *correctly* cause an HSM error and what follows.
    > >
    > > Now the question is who gets the length wrong - Brasero or the ata
    > > translation code in libata
    >
    > Brasero does exactly the same as my test app which I attached to my last
    > mail. Is my test app wrong?

    Would need to double check the SCSI specificatons to be sure but I think
    you are asking for less data than the drive wishes to provide. You
    aren't allowed to do that with ATA.

    Alan
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