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From: Hans Petter Selasky <hselasky@c2i.net>
To: "Guojun Jin" <gjin@ubicom.com>
Date: Thu, 26 Nov 2009 09:20:31 +0100
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Cc: bugs@freebsd.org, freebsd-stable@freebsd.org, freebsd-usb@freebsd.org
Subject: Re: 8.0-RC USB/FS problem
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On Thursday 26 November 2009 08:30:52 Guojun Jin wrote:
> Most crash had the same back trace. This is also true when USB access
> hangs, then unplug the drive.

I think from the backtrace that this is not an USB issue. It is a file-system 
issue.

--HPS