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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
Date: Mon, 25 Feb 2013 12:33:30 +0100
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Cc: mav@freebsd.org, freebsd-gnats-submit@freebsd.org,
 Wouter Oosterveld <wouter@trimm.nl>
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Hi,

This does not look like an USB issue. It is related to CAM/SCSI layer. mav @ 
CC'ed

--HPS

On Monday 25 February 2013 12:19:18 Wouter Oosterveld wrote:
> >Number:         176417
> >Category:       usb
> >Synopsis:       [xhci][cam][umass] kernelpanic while removing plugged in
> >disk Confidential:   no
> >Severity:       non-critical
> >Priority:       low
> >Responsible:    freebsd-usb
> >State:          open
> >Quarter:
> >Keywords:
> >Date-Required:
> >Class:          sw-bug
> >Submitter-Id:   current-users
> >Arrival-Date:   Mon Feb 25 11:20:00 UTC 2013
> >Closed-Date:
> >Last-Modified:
> >Originator:     Wouter Oosterveld
> >Release:        FreeBSD backup01-trimm.trimm.net 9.0-RELEASE-p3 FreeBSD
> >9.0-RELEASE-p3 #0: Tue Jun 12 02:52:29 UTC 2012    
> >root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64
> 
> >Organization:
> TriMM Multimedia
> 
> >Environment:
> FreeBSD backup01-trimm.trimm.net 9.0-RELEASE-p3 FreeBSD 9.0-RELEASE-p3 #0:
> Tue Jun 12 02:52:29 UTC 2012    
> root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64
> 
> >Description:
> Symptoms:
> 
> Messages of USB disk getting removed and rediscovered while still plugged
> in.
> 
> Kernelpanic while 'removing' device.
> 
> Hardware:
> 
> Sweex 2 Port USB 3.0 Card PCI Express (cheap)
> Chip reads D720200F1 / 1119KU603 / Japan
> 
> Western Digital "My Book Essential" with large >1TB disk.
> 
> Screenshot: https://www.dropbox.com/s/bol6fxl37e7mu3g/IMAG0478.jpg
> 
> Note:
> 
> Machine is a ZFS fileserver with 16TB raidz2 array.
> 
> >How-To-Repeat:
> Plug in disk and see it getting 'removed' and rediscovered while being
> plugged in.
> 
> >Fix:
> >
> >
> >Release-Note:
> >Audit-Trail:
> 
> >Unformatted:
> _______________________________________________
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