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Date:      Mon, 25 Feb 2013 14:30:02 GMT
From:      Hans Petter Selasky <hselasky@c2i.net>
To:        freebsd-usb@FreeBSD.org
Subject:   Re: usb/176417: [xhci][cam][umass] kernelpanic while removing plugged in disk
Message-ID:  <201302251430.r1PEU2sw007085@freefall.freebsd.org>

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The following reply was made to PR usb/176417; it has been noted by GNATS.

From: Hans Petter Selasky <hselasky@c2i.net>
To: Wouter Oosterveld <wouter.oosterveld@trimm.nl>
Cc: "freebsd-usb@freebsd.org" <freebsd-usb@freebsd.org>,
 "freebsd-gnats-submit@freebsd.org" <freebsd-gnats-submit@freebsd.org>,
 "mav@freebsd.org" <mav@freebsd.org>
Subject: Re: usb/176417: [xhci][cam][umass] kernelpanic while removing plugged in disk
Date: Mon, 25 Feb 2013 15:19:53 +0100

 On Monday 25 February 2013 15:09:12 Wouter Oosterveld wrote:
 > Please not all this happened while the drive was plugged in at the time.
 > 
 > Is the powersafe feature of USB3.0 not understood (if any) by the kernel or
 > something?
 > 
 > -Wouter
 
 How long was the drive plugged when this happened? Usually a sudden disconnect 
 means one or more of:
 
 - USB device firmware crashed
 - Cable issue
 - Power loss or insufficient power
 
 --HPS



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