From owner-freebsd-usb@FreeBSD.ORG  Mon Feb 25 14:10:31 2013
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From: Wouter Oosterveld <wouter.oosterveld@trimm.nl>
To: 'Hans Petter Selasky' <hselasky@c2i.net>, "freebsd-usb@freebsd.org"
 <freebsd-usb@freebsd.org>
Date: Mon, 25 Feb 2013 15:09:12 +0100
Subject: RE: usb/176417: [xhci][cam][umass] kernelpanic while removing
 plugged in disk
Thread-Topic: usb/176417: [xhci][cam][umass] kernelpanic while removing
 plugged in disk
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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

-----Original Message-----
From: Hans Petter Selasky [mailto:hselasky@c2i.net]=20
Sent: maandag 25 februari 2013 12:34
To: freebsd-usb@freebsd.org
Cc: Wouter Oosterveld; freebsd-gnats-submit@freebsd.org; mav@freebsd.org
Subject: Re: usb/176417: [xhci][cam][umass] kernelpanic while removing plug=
ged in disk

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   =20
> >root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC =20
> >amd64
>=20
> >Organization:
> TriMM Multimedia
>=20
> >Environment:
> FreeBSD backup01-trimm.trimm.net 9.0-RELEASE-p3 FreeBSD 9.0-RELEASE-p3 #0=
:
> Tue Jun 12 02:52:29 UTC 2012   =20
> root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64
>=20
> >Description:
> Symptoms:
>=20
> Messages of USB disk getting removed and rediscovered while still=20
> plugged in.
>=20
> Kernelpanic while 'removing' device.
>=20
> Hardware:
>=20
> Sweex 2 Port USB 3.0 Card PCI Express (cheap) Chip reads D720200F1 /=20
> 1119KU603 / Japan
>=20
> Western Digital "My Book Essential" with large >1TB disk.
>=20
> Screenshot: https://www.dropbox.com/s/bol6fxl37e7mu3g/IMAG0478.jpg
>=20
> Note:
>=20
> Machine is a ZFS fileserver with 16TB raidz2 array.
>=20
> >How-To-Repeat:
> Plug in disk and see it getting 'removed' and rediscovered while being=20
> plugged in.
>=20
> >Fix:
> >
> >
> >Release-Note:
> >Audit-Trail:
>=20
> >Unformatted:
> _______________________________________________
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