[Bug 225794] VM images for 12.0-CURRENT have problem with USB 3.0 ports

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225794

Andriy Gapon <avg at FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|New                         |Open
           Assignee|scsi at FreeBSD.org            |avg at FreeBSD.org
                 CC|                            |scsi at FreeBSD.org

--- Comment #46 from Andriy Gapon <avg at FreeBSD.org> ---
(In reply to David.Boyd49 from comment #45)

David,
sorry that this fell of my plate, so to speak.

Thank you for all the testing and analysis.
It indeed appears to be a problem with VirtualBox.  It would be a good idea to
file a bug for it.  The essence of scsi_da change in r327996 is that the driver
now issues MODE SENSE command for the all pages page (0x3f).

I am adding a tunable that disables the new functionality, so that the problem
can be worked around.

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