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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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