[Myrinet] Re: unresolved symbol loading gm-1.5.2.1 on Alpha

On Fri, Sep 06, 2002 at 02:19:39PM -0500, Nathan Dauchy wrote:
> Greetings,
> 
> I am trying to upgrade gm to 1.5.2.1 on an Alpha cluster running 
> linux-2.4.18 and get the following error when loading the GM module:
> 
> [[email protected] gm]# /sbin/insmod sbin/gm
> sbin/gm: unresolved symbol __load_new_mm_context

Hi nate

I have no idea if this will make things function correctly :> , but to
get rid of the 'unresolved symbol' error, patch
arch/alpha/kernel/alpha_ksyms.c  and add the line
EXPORT_SYMBOL(__load_new_mm_context) somewhere
 
> This kernel is compiled with CONFIG_MODVERSIONS not defined, when I
> tried with it, I get many more (~50) "unresolved symbol" errors.

yeah, i hate CONFIG_MODVERSIONS

> - I have also tried the linux-2.4.19 kernel, which allegedly
> incorporates several patches for Alpha, and still get the same error.

If you want to use 2.4.19, make the same change to
arch/alpha/kernel/alpha_ksyms.c

> - I downloaded gm-1.5.1_Linux and it does NOT have the same
> "unresolved symbol" error that gm-1.5.2.1 does with the linux-2.4.18
> kernel.  gm-1.5.2_Linux DOES report the same error, so I am thinking it 
> might be that a bug was introduced somewhere in the changes from
> 1.5.1 to 1.5.2.

not so much a bug as a module using an internal kernel symbol.  Once
it's exported, you should have no problems. 

==rob

-- 
Rob Latham
Mathematics and Computer Science Division    A215 0178 EA2D B059 8CDF
Argonne National Labs, IL USA                B29D F333 664A 4280 315B