Re: Slow loading big kernel module in 2.6 on PPC platform

[Wilson Li]

--- Samuel Masham <Samuel.Masham@xxxxxxxxxxx> wrote:

> I assume you are on a slow ppc32 platform.
> 
> The time taken is a function of the number of symbols, you can work
> around it 
> as shown in the patch below. Obviously this is just an example
> patch and is
> NOT signed off for anything but reading :)
> 
> I would really like do some work on a pre-link for modules but
> don't really know 
> where to start.
> 
> Any hints?
> 
> Samuel
> 
> ps Not subscribed, just  so please cc me
> 

Appreciate your help. 
I applied your patch manually since something was wrong during
patching. I guess we might not use same version of kernel. Mine is
2.6.8. 

But the function parse_args_reloc() still failed even though I have
passed a module param like elf_plt_info=1 during insmod. Here's the
command to load the module.

#>insmod mrbig.ko elf_plt_info=1

And console output is: 
init_module: consider insmod mrbig elf_plt_info=25,27,322144,160

I have no idea what the plt section is and what is going on in
module_frob_arch_sections() function. Any hints or documents I can
refer to?

Thanks,
Wilson Li




		
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