It usually means that the kernel you are actually running is a different
version than the kernel the module was compiled against. It appears that
you did a 'make install' on the 2.6.16-rc3 kernel but is it the one that
is actually booted?
Rich
On Sun, 2006-02-26 at 17:25 +0100, Jose Luis Alarcon Sanchez wrote:
> Hi all.
>
> This are the dates,
>
> - Kernel installed: 2.6.16-rc3
>
> - Module Hello.c:
> #include <linux/init.h>
> #include <linux/module.h>
> #include <linux/kernel.h>
>
> MODULE_LICENSE("GPL");
>
> static int hello_init(void)
> {
> printk(KERN_ALERT "Hello, world\n");
> return 0;
> }
>
> static void hello_exit(void)
> {
> printk(KERN_ALERT "Goodbye, cruel world\n");
> }
>
> module_init(hello_init);
> module_exit(hello_exit);
>
> - Makefile:
> obj-m := Hello.o
>
> - make -C /usr/src/linux-2.6.16-rc3 SUBDIRS=$PWD modules
> make: Entering directory `/usr/src/linux-2.6.16-rc3'
> Building modules, stage 2.
> MODPOST
> make: Leaving directory `/usr/src/linux-2.6.16-rc3'
>
> - 'insmod Hello.ko' and 'rmmod Hello' output okey, without messages
>
> But dmesg show this:
> Hello: disagrees about version of symbol struct_module
> Hello: disagrees about version of symbol struct_module
> Hello, world
> Goodbye, cruel world
>
> What's the meaning of "disagrees about version of symbol struct_module"
> lines?
>
> This is the output of 'nm Hello.ko' if it helps:
> 0000000e T cleanup_module
> 0000000e t hello_exit
> 00000000 t hello_init
> 00000000 T init_module
> 00000000 r __mod_license9
> 00000020 r __mod_srcversion29
> 00000043 r __module_depends
> 0000004c r __mod_vermagic5
> U printk
> 00000000 D __this_module
> 00000000 r ____versions
>
> Thanks you very much, in advance.
>
> Regards.
>
> Jose.
>
>
--
Richard Johnson <richj25@xxxxxxxxxxxxx>
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