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SubjectRe: compiling 2.4.0-test10 kernel
>>>>> "KO" == Keith Owens <kaos@ocs.com.au> writes:

KO> On Fri, 10 Nov 2000 11:23:29 -0500 (EST), "Georg Nikodym"
KO> <georgn@somanetworks.com> wrote:
C> i've manged to successfully compile 2.4.0-test10 kernel. however,
C> upon startup there are some failed/error messages:
C> 1. finding module dependencies: depmod *** Unresolved symbols in
C> /lib/modules/2.4.0-test10/kernel/arch/i386/kernel/apm.o
>>
>> There are two things you can do about this:
>>
>> 1. Disable module versioning.
>> 2. Copy the System.map file that's made during the kernel build to
>> /boot/System.map-2.4.0-test10.

KO> System.map has nothing, repeat nothing to do with depmod at
KO> startup. Yes, you can run depmod reading from a System.map but
KO> that only makes sense before you boot the new kernel. Once you
KO> have booted your new kernel, depmod -a reads from kernel memory,
KO> not System.map.

OK. Makes sense. My first kicks at building and running a kernel had
these problems (with module loading) until I added the copying of
System.map to my installation procedure. I was led to this by
messages in /var/log/messages... Thanks for the additional pointers.

KO> Q. Why do I get unresolved symbols like foo__ver_foo in modules?

KO> A. If /proc/ksyms or the output from depmod -ae contains symbols
KO> like
KO> "foo__ver_foo" then you have been bitten by the broken Makefile
KO> code for symbol versioning. The only safe way to recover is save
KO> your config, delete everything, restore the config and recompile.

KO> mv .config .. make mrproper mv ../.config . make oldconfig make
KO> dep clean bzImage modules install, boot

OK, but I guess my question wasn't very clear. I have a kernel tree,
I add a printk to maestro.c and make modules. I cannot load the
module until I rebuild and reinstall everything. Is there a way to
avoid this headache, or, stated differently: What's the prescribed
way to be able to load, unload, build, test modules?
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