Oops: Kernel access of bad area, sig: 11 [#1]

[Ramon Fried]

Hi.
I'm developing a driver on PowerPC kernel version 3.10.
Once In a while, I get the following OOPS and the system freezes.

Unable to handle kernel paging request for data at address 0xffffffdc 
Faulting instruction address: 0xfb7780c8 
Oops: Kernel access of bad area, sig: 11 [#1] 

When I look at the address where the paging fails, it looks like a wrong address (0xffffffdc).
The stack trace points to a list_for_each() macro.
Could it be that NULL linked list node container off was called ? Am I in the right direction ?

Thanks,
Ramon