On Mi, 2017-11-08 at 14:28 +0100, Wolfgang Rohdewald wrote: > since kernel 4.9 I cannot use my four dvb-s2 USB receivers anymore, so > I am stuck with 4.8.x > > Now I tried again with an unmodified kernel 4.13.12. After some time, > I get 3 oopses (remember - I have 4 devices). The call trace is always > the same. > > > attached: > > tasks.txt showing the timing of the oopses > oops.txt with one of them after this happens, lsmod shows a negative reference count: Module Size Used by stb0899 40960 -1 -- mit freundlichen Grüssen Wolfgang Rohdewald