* Usman S. Ansari (uansari@yahoo.com) wrote: > On Redhat 7.1 kernel, my module loads and work fine. I had to regenerate the > kernel after applying kdb patch for debugging over serial link (patch applied > very nicely). > > When I try to load mymodule with the new kernel I get following messages. Funny > thing is that I can see all the unresolved symbols in the System.map file > generated. > > [root@karachi /root]# insmod mymodule.o > mymodule.o: unresolved symbol send_sig > mymodule.o: unresolved symbol __generic_copy_from_user <snipped extra debugging info> for exported symbols cat /proc/ksyms (not System.map). chances are you have been bit by MODVERSIONS. if the symbols in /proc/ksyms are mangled by MODVERSIONS (you'll see _Rblahblah added to each symbol), add -DMODVERSIONS -include /path/to/src/include/linux/modversions.h to your gcc command line. for more info, see www.kernelnewbies.org/faq cheers, -chris -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/
