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Date:      Mon, 9 Jun 2014 13:34:15 -0700
From:      Steve Kargl <sgk@troutmask.apl.washington.edu>
To:        freebsd-current@freebsd.org
Subject:   ohci bricks a amd64 system
Message-ID:  <20140609203354.GA987@troutmask.apl.washington.edu>

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I updated my FreeBSD-current system from an
April 9th kernel/world (r264280M, which was
running fine) to today sources (r267284), and
have successfully turned the system into a brick
if I include the USB ohci device in my kernel.
During the verbose boot process, the brick stops
with the message

ohci early: SMM active, request owner change

At this point, one must hit the reset button
as there is no keyboard, yet.  If I remove the
ohci device from the kernel config file, the
resulting kernel boots but the usb mouse is
no longer available.

Any pointers on how to debug/fix the ohci device
is appreciated.

-- 
Steve



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