Configuration file for a running kernel

[Andrej Prsa <andrej.prsa@fiz.uni-lj.si>]

Dear everybody,

Is it possible to retrieve .config file for a running kernel somehow? I
guess they are usually acompanying the kernel in the /boot directory, but
if I try to compile the kernel with that config, I get significantly
different kernel size and behaviour is slightly different (e.g. PCMCIA
modules not being installed). Is this due only to different compiler or
does this mean that the config isn't the right one? I am talking about the
generic bf24 kernel that comes with Woody 3.0r1. I have found an option in
kernel configuration that kernel binary could include its config file, but
I guess it isn't a common practice to do?

Thanks,

Andrej