I got this message during compiling module.
Actually, Red.ko had made but can not load the module due to the unknown symbol (tasklist_lock).
What’s the problem?? I can see the symbol is exported in the linux-header-2.6.18-4-686/include/linux/sched.h.
I couldn’t understand why it is shown “undefined”??
Also during searching about this problem, I read this - for linux kernel 2.6.18, the symbol does NOT export any more …. Is this right???
If it is, is there any way to use the symbol ‘tasklist_lock’?
There is my only guess, it is needed the license to use this symbol.
Thanks a lot for any suggestion.