Hi,
Anyway, I think Eric is right, the bug may be in other place. I am wondering
if the attached patch could help? It seems in netpoll tx path, we miss the
chance of calling ->ndo_select_queue().
Please give it a try.
This fixes the NULL deref as well. I applied your patch over vanilla
3.6-rc5 (so without eric's patch) and I can load netconsole without it
crashing directly.
I will try to put a bit of load on the machine and see how it behaves,
if it solves the hung cpu tasks as well.
Cheers,
Sylvain