Re: kern/46923: Panic when I unplug an external usb mypassport hard drive.

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sat, Sep 08, 2012 at 02:50:00AM +0000, zac.3.14159%gmail.com@localhost wrote:
> >Number:         46923
> >Category:       kern
> >Synopsis:       Panic when I unplug an external usb mypassport hard drive.
> >Confidential:   no
> >Severity:       critical
> >Priority:       high
> >Responsible:    kern-bug-people
> >State:          open
> >Class:          sw-bug
> >Submitter-Id:   net
> >Arrival-Date:   Sat Sep 08 02:50:00 +0000 2012
> >Originator:     Zachary Storer
> >Release:        NetBSD-6.0 RC1
> >Organization:
> N/A
> >Environment:
> NetBSD 6.0-RC1 Generic (note I recently installed OpenBSD on this box, so 
> this is not exact, but it was with a clean NetBSD-6.0RC1 install on amd64)
> >Description:
> When I plug in an external usb mypassport hard drive, then unplug it (even 
> when unmounted), the system panics. This happens every time I do this. I see 
> a beautiful screen of numbers scrolling past...
> Here is a pastebin of images of the panic: http://inky.ws/g/1y8

If I read it properly (it's not easy), it's a panic because ses(4)
can't be detached. A workaround would be to build a kernel
without the ses(4) device.
ses(4) should gain proper detach support.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--