Re: [linux-usb-devel] [2.6.0-test2-bk5] OHCI USB printing causing system lockup...

[Daniel Blueman <daniel.blueman@gmx.net>]

It does seem that it's the usblp driver, and I think the way forward is to
collect more information with compiling the driver with debugging to see more
of what's happening here. I'll do this tonight and report findings.

The module author string is "Michael Gee, Pavel Machek, Vojtech Pavlik,
Randy Dunlap, Pete Zaitcev, David Paschal" - who should I CC my results to?

Thanks!

> Daniel Blueman wrote:
> > When printing a test page on an Epson C62 through an unpowered USB 1.1
> hub,
> > the printer printed part of the page, then stopped.
> > 
> > The 'error -110' messages were being sent to the syslogs, and after
> pulling
> > the connector to the USB hub, the system locked up.
> 
> So it seems like there are two errors:
> 
>   - timeouts during printing, reported recently on UHCI too;
> 
>   - the usb_buffer_free() oops from printer cleanup, likewise.
> 
> Seems more related to the printer driver than to OHCI ...

-- 
Daniel J Blueman

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