Hi all,

i've succesfully compiled an LKM that registers a generic netlink family. I've used kernel 2.6.27-7.

I've now compiled a new kernel version (2.6.28). I've also succesfully compiled the LKM with the new kernel.

But, when i try insmod mylkm.ko i get the following error:

insmod: error inserting 'mylkm.ko': -1 Operation not permitted


The problem seems to be with the function genl_register_family that runs when the module is being loaded. For some reason kernel denies that operation.

Any ideas?

Thanks in advance,

Alex

Sorry if this question is silly, but which user are you doing this as?

i'm doing this as root.

I've also tried the following: i recompiled kernel 2.6.28 using the .config file of kernel 2.6.27-7.

Now the LKM can be loaded with insmod.
This means that the LKM module was not loaded in the initial 2.6.28 kernel because of an option set (or not set) during make menuconfig.

Thanks,
Alex