Fwd: help with unknown symbols when trying to load kernel module

[Andrzej Kardas]

On 06.03.2011 18:38, julie Sullivan wrote:
> I found this query on linux-kernel. Can anyone help George?
>
> ---------- Forwarded message ----------
> From: George Nychis<gnychis at cmu.edu>
> Date: Sun, Feb 27, 2011 at 5:26 PM
> Subject: help with unknown symbols when trying to load kernel module
> To: linux-kernel at vger.kernel.org
>
>
> Hi all,
>
> Long story short, I am trying to rebuild a kernel module for my
> android phone.  Unfortunately, Motorola did not post the kernel
> configuration they used
> (https://opensource.motorola.com/sf/sfmain/do/viewProject/projects.droid
> - I am running 2.2.1).  They also did not configure the kernel to dump
> it at /proc/config.gz. I have the exact source code used to build both
> the kernel, and the wireless kernel module used.  But again, I do not
> have the exact kernel configuration.  Therefore, I do not want to
> replace the kernel on the phone (in fear of misconfiguration causing
> boot errors), I simply want to rebuild the wireless module and get it
> to work with the kernel already on the phone.
>
> I've tried getting help from the android community, however their
> kernel mailing list only gets about 3 messages a day and posts are
> moderated and lag behind something like 4 days.  So, I'm hoping for a
> little bit of help here on the linux end of things from the linux
> community.
>
> I've ballparked the configuration using an older configuration file
> posted on another forum, and was able to successfully build my own
> kernel (albeit I do not use it), and then also build the wireless
> module successfully.
How did you built kernel, means by make all, or just make module_prepare 
& make madules ?
Please check if after build kernel (make all) there is a file 
Module.symvers in /your_path_to_src_kernel/

> When I try to load the module on the phone, I get a pretty long list
> of undefined symbols:
> http://pastebin.com/re5mRj4E
There is many *disagrees about version* of symbol which looks like 
sources you uesed to build module wasn't for this particular kernel.


Could you type and paste output of:

modinfo tiwlan_drv

and

modinfo some_other_module_working_on_your_phone

--
regards
Andrzej Kardas
http://www.linux.mynotes.pl



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