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Date: Mon, 21 Apr 2008 12:29:38 -0600 (MDT)
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To: mainland@eecs.harvard.edu
From: "M. Warner Losh" <imp@bsdimp.com>
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Cc: freebsd-embedded@freebsd.org, freebsd-usb@freebsd.org
Subject: Re: Soekris 4826 USB failure on FreeBSD 7.0
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In message: <20080421171305.GA19840@eecs.harvard.edu>
            Geoffrey Mainland <mainland@eecs.harvard.edu> writes:
: I have a number of Soekris 4826 boards with USB thumb drives attached
: that happily run FreeBSD 6.0. However, when I try to get them to run
: FreeBSD 7, the thumb drives stop working. A PR was recently filed by
: someone with a similar issue: kern/122380 (I see the same failure as in
: the PR). Looks like something changed in the USB stack from 6 to 7...any
: ideas where to look or how I can go about solving this?

Lots of cosmetic changes, lots of other changes that were for the
better, lots and lots of quirks.  I'm guessing something got quirked,
or there was a bug fix that caused us to die.

As to tracking it down, I'd suggest a binary search between
7.0-release and where RELENG_6 was branched.  Not ideal, but that's
the likeliest way to cope.

Warner