[lug] Newbie tries to make laptop modem work

[LittleViggy at alum.manhattan.edu]

One other thing I noticed is that sometimes one module depends upon another 
being loaded.  I believe that the module loader is supposed to load dependent 
modules automatically, but I have had problems where it didn't.

For example, module "one.o" may depend on symbols in module "two.o".  In that 
case, if you try to load module "one" first, you get the unresolved symbols 
errors.

Just my $0.02...

Glenn Murray wrote:
> 
> D.,
> 
> Thanks for the response.  I wondered what that meant.  If I understand
> correctly, if I (can) compile the modules myself, then they will work
> with the existing kernel?
> 
> Glenn Murray
> www.mines.edu/~gmurray/public_html/Welcome.html
> 
> On Fri, 30 Nov 2001, D. Stimits wrote:
> > Glenn Murray wrote:
> ...
> > > glenn/$ sudo update-modules
> > > depmod: *** Unresolved symbols in /lib/modules/2.2.19/misc/lt_serial.o
> >
> > Your module does not match your kernel. If you want to get pickier, the
> > kernel is expecting symbols in the module that point at matching module
> > handlers, and either they don't exist, or they are at the wrong offset,
> > or they exist but are shaped differently (function signature must match
> > kernel's idea, and the kernel must look in the right location). Perhaps
> > the module was compiled against a kernel that has been configured
> > differently than the kernel that is running. Configuring a kernel alters
> > headers and configuration files, so having the same kernel version isn't
> > enough. Sometimes people compile using everything correctly, but don't
> > realize they're using two different compilers for the module and kernel,
> > which will also cause "bad things" to happen.
> >
> > D. Stimits,
stimits at idcomm.com

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