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    SubjectRe: [REGRESSION] "USB: use kfifo to buffer usb-generic serial writes" causes gobi_loader to hang
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    On maanantai 15 helmikuu 2010 15:08:27 Oliver Neukum wrote:
    > Am Samstag, 13. Februar 2010 20:01:54 schrieb Anssi Hannula:
    > > > I'll get back to this later today, including testing with mdelay in
    > > > port_release with the extra sleep calls in gobi_loader.
    > >
    > > port_release is only called when the serial device is removed, so this
    > > has no effect here.
    >
    > But something must kill your last URB.
    > You are not using autosuspend are you?

    Don't know, usbcore has autosuspend=2 and the gobi device has autosuspend=2
    and supports_autosuspend=1.

    > Can load usbserial with "debug=1"?

    Here's the end of dmesg when running with that option:
    http://stuff.onse.fi/gobi2000/gobi-regression.dmesg.log

    This is again with the gobi_loader with extra sleep added in the beginning.
    Otherwise it hangs (which is the actual original problem).

    --
    Anssi Hannula


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