With a current(Nov21) kernel I get a "panic: locking against myself",
when working on a vnd.
This only happens when the kernel is configured with both vn and ccd.

Any good ideas as to why ?

How do I try to debug the kernel ?

gdb -k <name-of-kernel>   says: no symbols

-- 
Kim Andersen @ Dansk Data Elektronik A/S, Herlev, Denmark.
kim@dde.dk     http://www.dde.dk/