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    SubjectRe: [BISECTED] Re: [BUG] Linux-2.6.31-rc1 Fails To Recognize Some USB Disks
    >>>>> "Tarkan" == Tarkan Erimer <> writes:

    Tarkan> Today, I had time to bisect and you were right: The below commit
    Tarkan> related to capacity detection changes in SCSI subsystem,as you
    Tarkan> mentioned, seems the cause of the problem.

    Thanks for bisecting this.

    Tarkan> Detect non-rotational devices and set the queue flag
    Tarkan> accordingly.

    Aha, so you're getting USB resets because your USB-ATA bridge gets
    confused when we ask it a simple question. What a marvel of modern
    engineering that thing is...

    Please send me the output of:

    sg_inq -e /dev/foo
    sg_inq -l 16 /dev/foo
    sg_inq -l 16 -e /dev/foo
    sg_inq -l 36 /dev/foo
    sg_inq -l 36 -e /dev/foo
    sg_vpd -p sv /dev/foo
    sg_vpd -p bl /dev/foo
    sg_vpd -p bdc /dev/foo

    Martin K. Petersen Oracle Linux Engineering

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      Last update: 2009-07-24 16:07    [W:0.020 / U:38.948 seconds]
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