umass problem.

[Alexander Nedotsukov]

Well I do. This is a regression in EHCI driver introduced along the new
usb stack. Please review patch attached.

Thanks,
Alexander.

On Tue, 20 Oct 2009 10:53:36 +0900, Alexander Nedotsukov
<bland at freebsd.org> wrote:
> Hi,
> 
> I can reproduce this reliably with simple dd if=/dev/da0. At the end
> external USB drive turns off the lights (tough it still spinning) and
> system fall into the state where it is impossible to reboot it cleanly.
I
> can get drive back only after full power cycle (simple reboot is not
> enough). Using same drive under moderate load seems mostly to work. It
also
> is used to work under 7.2.
> 
> Anyone have an idea what this could be?
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