USB locks up system -- WAS Re: shutdown or acpi problem

[Ian Lepore]

On Sun, 2014-11-16 at 18:17 +0000, Mark R V Murray wrote:
> > On 16 Nov 2014, at 17:51, Steve Kargl <sgk at troutmask.apl.washington.edu> wrote:
> > 
> > Is there a 'random: device_detach():' missing between the 'umass0'
> > and 'da0' messages in the last 4 lines.
> 
> No. At attach time, the RNG grabs some probe entropy. At detach time it does nothing.
> 
> M

And yet... Steve has gathered evidence that the system bricks when a
device is detached with the new entropy-gathering code and doesn't do so
prior to that code.  What else is the new code doing around detach time?

-- Ian