Panic when detaching Vodafone 3G card

Oliver Fromme olli at
Wed Sep 10 12:08:47 UTC 2008

Bruce M Simpson wrote:
 > I just acquired one of these cards, it attaches as a USB cardbus device.
 > [...]
 > If I unplug it, the kernel panics.

That's expected and a known problem.  The card contains
an OHCI controller, but the ohci(4) driver doesn't support
detaching.  I think that's also the reason why you have
to compile ohci statically in your kernel, there's no
module for it.

Solution:  Don't unplug the card.

The problem is supposed to be fixed with usb4bsd, but I
haven't tried it myself.

Best regards

Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M.
Handelsregister: Registergericht Muenchen, HRA 74606,  Geschäftsfuehrung:
secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün-
chen, HRB 125758,  Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart

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