Duncan Sands wrote:
>>It's not at all clear how that could happen.  Those pointers are located
>>in static data in the HCD modules.  It doesn't seem likely that the
>>pointer was overwritten.  The only other possibility I can think of is
>>that the module was already unloaded.  But that's not possible since you
>>were holding a reference to a device on that bus.
> 
> 
> It occurred on system shutdown - so I guess the module was unloaded.
> Maybe the bus reference counting is borked.  I've sent Vince a patch that
> should produce some more info.

Actually, no need to be at system shutdown: in my case a simple
"/etc/init.d/hotplug stop" is enough to trigger the oops.
However, it doesn't happen every time, I had to try some times before I 
got another oops again. I enclose the logs with the additional debugging 
information in attachment.

Regards,

Vincent