CODEWITHSUNDEEP
linux-kernel
MirkoBanchi
MirkoBanchi

Reputation: 2253

Loading LKM get undefined symbol error

when i try to load my Linux kernel module i get an error about an undefined symbol (obviously i get a warning during make). In particular i need to use the macro pgd_offset_k in my module (defined in asm/pgtable.h). This is expanded in pgd_offset(&init_mm, (address)). The undefined symbol is init_mm. I have also verified its presence in /proc/kallsyms:

$ cat /proc/kallsyms |grep -w init_mm

c07d49a0 D init_mm

Any ideas?

Upvotes: 0

Views: 1402

Answers (1)

Michael F
Michael F

Reputation: 40849

init_mm is not exported past 2.6.29, on the basis that no out-of-tree code should be using it. Can you not do without pgd_offset_k?

Upvotes: 3

Related Questions