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    SubjectRe: pl2303 ttyUSB0: pl2303_open - failed submitting interrupt urb, error -28
    Mark Lord wrote:
    > Greg,
    >
    > With 2.6.17-rc6-git2, I'm seeing this kernel message during start-up:
    >
    > pl2303 ttyUSB0: pl2303_open - failed submitting interrupt urb, error -28
    >
    > The pl2303 serial port is part of a USB1.1 Hub/dock device,
    > plugged into a USB2 port on my notebook.
    >
    > I get the same failure again when trying to use the port with Kermit.
    > This device was working fine here not long ago -- on the -rc5 kernels I
    > think.
    >
    > Unplugging the hub/dock does this:
    >
    > kernel BUG at kernel/workqueue.c:110!
    > invalid opcode: 0000 [#1]
    > PREEMPT
    >...

    MMmm.. entire USB subsystem is toast after that -- reboot required.

    Cheers
    -
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