[linux-dvb] kernel reboot needed after unplugging dvb-t usb in use.

Patrick Boettcher patrick.boettcher at desy.de
Sun Sep 10 16:47:07 CEST 2006

On Sat, 9 Sep 2006, Alan Chandler wrote:

> On Saturday 09 September 2006 08:22, Alan Chandler wrote:
> ...
> > Now that everything is more stable, I have been able to experience this
> > problem in more controlled conditions and it appears to be related to some
> > form of race condition where the /dev/dvb/adapterN disappears whilst it is
> > being used.  At least the action that caused the problem was unplugging the
> > usb connector on the tuner whilst tzap was using it.  This caused the crash
> > below.
> Its now happened spontaneously, without unplugging anything.  It may be that 
> the dvb-usb module de-initiallised itself.
> I have left tzap running for about 3 or 4 hours on in two separate sessions 
> with the two tuners, tuned to different channels.

2 Problems here: First the DVB-core is not hotpluggable - that's why you 
get the Oopses. Second something is wrong with your USB, device or host. 
That the device sporadically disconnects while being used is an indicator 
for faulty hardware.


  Mail: patrick.boettcher at desy.de
  WWW:  http://www.wi-bw.tfh-wildau.de/~pboettch/

More information about the linux-dvb mailing list