On Sun, 05 Dec 2010, Oliver Hartkopp wrote:
> can you give some more details about you setup, that leads to the crash?
> 
> 1. Are you running the setup using this patch:
> 
>    
> http://rtime.felk.cvut.cz/gitweb/shark/linux.git/commitdiff/92487e4f349cd7518cc3202662f42fea7d42ba73

Yes, but I've just tested that the panic appears even without this patch
applied.

> 
> 2. Are you using the '-e' option that creates the local echo of sent
>    CAN frames?

No. I use a simple cangw -A -s can0 -d can1. It crashes immediately with
the first routed message. I tried different messages ids and lengths but
the result is still the same.

Nnext, I want to try kgdb and set a watchpoint on the .magic filed of
spinlock below. Do you have a better idea?

BUG: spinlock bad magic on CPU#0, swapper/0
 lock: c798cabc, .magic: c0000000, .owner: <none>/-1, .owner_cpu: -1069337880

-Michal

P.S. My kernel config is here
http://rtime.felk.cvut.cz/gitweb/can-benchmark.git/blob/edc8f8a7ff512c1c4cd1745aec62c4ddef1dc4fa:/kernel/build/shark/2.6.36/.config
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