From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 13882] Cannot read CD: "Logical unit communication CRC error"
Date: Fri, 31 Jul 2009 20:07:16 GMT
Message-ID: <200907312007.n6VK7GMa003089@demeter.kernel.org>
References: <bug-13882-11633@http.bugzilla.kernel.org/>
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http://bugzilla.kernel.org/show_bug.cgi?id=13882





--- Comment #13 from Robert Hancock <hancockrwd@gmail.com>  2009-07-31 20:07:16 ---
Presumably it's hitting this case:

    pci_read_config_dword(pdev, 0x50, &ata66);
    /* Check both the drive cable reporting bits, we might not have
       two drives */
    if (ata66 & (0x10100000 >> (16 * ap->port_no)))
        return ATA_CBL_PATA80;

The value at 0x50 is F1F1F6F2, which according to this logic means that an
80-wire cable is detected on all 4 drives. Hmm..

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