[Angstrom-devel] Kernel modules build/install issues, was: Re: Fwd: ipaq h4100 bluetooth and wifi issues

[Paul Sokolovsky]

Hello Daniel,

Tuesday, September 4, 2007, 1:39:07 AM, you wrote:


[]

> On the bluetooth side of things I am still getting a "segmentation fault"
> when I try to load the h4000_bt.ko module.  Any ideas?  I have attached the
> output of dmesg to this email.  Here is my configuration:

  The attachment didn't get thru, but it is the same "module already
loaded" error you reported before, right? Well, I finally seem to
have understood where it comes from.

  When kernel config in OE changes, it could happen that some
driver goes from "modular" to "builtin" state. In other words, there
used to be a package for that module but now it's not needed. However,
the older package is still in deploy dir. If such a module is
RRECOMMENDed somewhere, it will go into image, and then have a chance
to be loaded. As all those symbols are already defined in kernel,
there's a small (yet harmless) kaboom.

  So, on each kernel recipe rebuild (and only then), one needs to
manually remove (or move to morgue dir to be more correct) all
previous kernel module packages:

rm tmp/deploy/glibc/ipk/h4000/kernel-module-*

  Again, this should happen only if kernel is to be rebuilt, not
unconditionally before any image rebuild.

> ipaq - h4100
> version - Linux version 2.6.21-hh12 (koen at bitbake) (gcc version 4.1.2) #1
> PREEMPT Tue Aug 28 02:58:07 CEST 2007

  And this means that this issue happens on official Angstrom build
server too, with noone to do cleanups manually, of course. Koen,
Richard, any ideas how to automate it? Do we speak about adding a
pre-package task which would fish in deploy dir? Would this be ok?
(But hardly any other choice of course.)

> Thanks,
> -Dan



-- 
Best regards,
 Paul                            mailto:pmiscml at gmail.com