insmod: error inserting 'test2.ko': -1 Unknown symbol in module

[SandeepKsinha]

On Mon, Dec 3, 2012 at 12:18 PM, Pritam Bankar
<pritambankar1988 at gmail.com>wrote:

> Hi,
> What is basic reason behind error "Unknown symbol in module" ?
> I have two modules test1.ko and test2.ko. test1.ko loads succesfully
> but test2.ko gives error
>
> insmod: error inserting 'test2.ko': -1 Unknown symbol in module
>
> Try adding module_licence("GPL")


> dmesg shows all symbols in module as unknown. To give more details I
> have compiled both modules same way with same compiler options and
> with modpost, Module.Symvers files.
> Another point to mention is that both modules load perfectly on 2.6
> kernel. But kernel on which I am trying is 3.0 series kernel.
> What can be entry point to look into this issue ?
>
> Thanks,
> Pritam
>
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-- 
Regards,
Sandeep.






“To learn is to change. Education is a process that changes the learner.”
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