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    SubjectRe: [BUG] 2.6.24-git usb reset problems
    On Mon, Jan 28, 2008 at 09:49:35PM +0100, Jens Axboe wrote:
    > Hi,
    >
    > Running latest -git (head 91525300baf162e83e923b09ca286f9205e21522) and
    > connecting my cf usb storage device yields and endless stream of:
    >
    > Initializing USB Mass Storage driver...
    > scsi6 : SCSI emulation for USB Mass Storage devices
    > usb-storage: device found at 2
    > usb-storage: waiting for device to settle before scanning
    > usbcore: registered new interface driver usb-storage
    > USB Mass Storage support registered.
    > scsi 6:0:0:0: Direct-Access Generic STORAGE DEVICE 0125 PQ: 0
    > ANSI: 0
    > sd 6:0:0:0: [sdb] 4001760 512-byte hardware sectors (2049 MB)
    > sd 6:0:0:0: [sdb] Write Protect is off
    > sd 6:0:0:0: [sdb] Mode Sense: 02 00 00 00
    > sd 6:0:0:0: [sdb] Assuming drive cache: write through
    > sd 6:0:0:0: [sdb] 4001760 512-byte hardware sectors (2049 MB)
    > sd 6:0:0:0: [sdb] Write Protect is off
    > sd 6:0:0:0: [sdb] Mode Sense: 02 00 00 00
    > sd 6:0:0:0: [sdb] Assuming drive cache: write through
    > sdb: sdb1
    > sd 6:0:0:0: [sdb] Attached SCSI removable disk
    > sd 6:0:0:0: Attached scsi generic sg1 type 0
    > scsi 6:0:0:1: Direct-Access Generic STORAGE DEVICE 0125 PQ: 0
    > ANSI: 0
    > usb 5-1: reset high speed USB device using ehci_hcd and address 2
    > usb 5-1: reset high speed USB device using ehci_hcd and address 2
    > usb 5-1: reset high speed USB device using ehci_hcd and address 2
    > usb 5-1: reset high speed USB device using ehci_hcd and address 2
    > usb 5-1: reset high speed USB device using ehci_hcd and address 2
    > usb 5-1: reset high speed USB device using ehci_hcd and address 2
    > usb 5-1: reset high speed USB device using ehci_hcd and address 2
    > [...]
    >
    > until I disconnect it. The device doesn't work. Worked fine in 2.6.24.
    > I'm attaching boot messages and my .config.

    That's a bit wierd, as we haven't added any USB patches to the -git tree
    yet after 2.6.24 :)

    Could this be caused by some scsi changes perhaps?

    thanks,

    greg k-h


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