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SubjectRe: USB/DVB - Old Technotrend TT-connect S-2400 regression tracked down
On Sun, 24 May 2009, David wrote:

> Alan Stern wrote:
> > But if not then this is a genuine bug and it should be reported
> > separately on the linux-usb mailing list.
> >
> >
> >
> Stranger and stranger. I started usbmon on the quad core and (at the
> console) cat /sys/kernel/debug/usbmon/0u worked fine for the keyboard
> and mouse. I then plugged in the S-2400 and was greeted with this kernel
> panic (jpg attached).
> David

Pete, you should look at this. It appears to be a problem with the DMA
mapping in usbmon. Probably the same sort of thing you were working on
about a week ago (trying to access device memory).

Alan Stern

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