Panic Kernel Dump to umass device?

[Nate Nielsen]

Ian Dowse wrote:
> 
> The USB stack supports polled operations, so it's actually not to
> hard to make this work. Below is a patch I had in one of my local
> trees that adds a CAM poll handler to the umass driver. I've just
> tested this and it does seem to make kernel dumping work, but I
> guess it might not be as reliable as dumping to other devices.

Thanks, that helps. It works nicely with a uhci USB controller.

However when the ohci driver is in use, we crash somewhere in
usb_transfer_complete. I'll look into this further.

Cheers,
Nate