usb/176417: [xhci][cam][umass] kernelpanic while removing plugged in disk

[Hans Petter Selasky]

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

From: Hans Petter Selasky <hselasky at c2i.net>
To: Wouter Oosterveld <wouter.oosterveld at trimm.nl>
Cc: "freebsd-usb at freebsd.org" <freebsd-usb at freebsd.org>,
 "freebsd-gnats-submit at freebsd.org" <freebsd-gnats-submit at freebsd.org>,
 "mav at freebsd.org" <mav at 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