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    Subjectcd/dvd inaccessible in 2.6.24-rc2
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    Date

    Hello,

    Motherboard: Gigabyte GA-P35-DS4 (rev. 1.1)
    Chipset: Intel P35 + ICH9R
    PATA port runs off JMicron controller
    CD/DVD Device: BENQ DW1640 16X

    I cannot access my dvd burner under 2.6.24-rc2, I have no problems under
    2.6.23. Basically the drive is detected OK, everything looks ok but as
    soon as I go to use it errors like this occur:


    ata9.00: qc timeout (cmd 0xa0)
    ata9.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
    ata9.00: cmd a0/00:00:00:02:00/00:00:00:00:00/a0 tag 0 cdb 0x5a data 2
    in
    res 51/54:03:00:02:00/00:00:00:00:00/a0 Emask 0x5 (timeout)
    ata9.00: status: { DRDY ERR }
    ata9: soft resetting link
    ata9.00: revalidation failed (errno=-2)
    ata9: failed to recover some devices, retrying in 5 secs
    ata9: soft resetting link
    ata9.00: qc timeout (cmd 0xa1)
    ata9.00: failed to IDENTIFY (I/O error, err_mask=0x4)
    ata9.00: revalidation failed (errno=-5)
    ata9: failed to recover some devices, retrying in 5 secs
    ata9: soft resetting link
    ata9.00: qc timeout (cmd 0xa1)
    ata9.00: failed to IDENTIFY (I/O error, err_mask=0x4)
    ata9.00: revalidation failed (errno=-5)
    ata9.00: disabled
    ata9: soft resetting link
    ata9: EH complete

    The drive is locked up after the first attempt to access it occurs, the
    tray cannot be ejected.


    dmesg output

    http://paste.ubuntu-nl.org/43948/

    kernel .config

    http://paste.ubuntu-nl.org/43944/

    lspci -vvvxxxx

    http://paste.ubuntu-nl.org/43950/



    Regards,

    Will Trives

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