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Date: Tue, 22 Apr 2008 17:52:27 -0400
From: Geoffrey Mainland <mainland@eecs.harvard.edu>
To: "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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Wow, this turns out to be much worse than I thought...I've tracked down
the problem to the commit of the new physical memory allocator at Sat
Jun 16 04:57:05 2007 UTC. Before that, no kern/122380; after that,
kern/122380 applies. Any ideas where to go from here?

Thanks,
Geoff

On Mon, Apr 21, 2008 at 12:29:38PM -0600, M. Warner Losh wrote:
> 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