Re: 2.5.51 ide module problem

[Jeff Chua]

On Tue, 10 Dec 2002, Adam J. Richter wrote:

> >depmod will ecounter "Segmentation fault" if the ide.ko and ide-io.ps
> >modules are in /lib/modules/2.5.51/kernel
>
> 	I think the new depmod recurses infinitely when it encounters
> circular dependencies.  It eventually segfaults and leaves a huge
> modules.dep file from the infinite loop.  If you look at the final
> huge line in that file, you can see where the loop occurred.
>
> 	depmod has no need to do any recursion, since it only needs
> to determine the immediate dependencies of each module.  However,
> noticing such loops and printing them out would be a handy feature.
>
> 	I use IDE as a module, but I had to change the Makefile to
> build a big ide-mod.o from most of the core objects rather than
> allowing each one to be its own module.  I believe I posted IDE
> modularization patches at least once a couple of months ago, but it
> seems to have fallen between the cracks.  I could repost it if need
> be

Yes, please, send me your patch. I hope this patch works for
module-init-tools-0.9.3

>, although I have not yet booted 2.5.51.

I had same problem with pre 2.5.51. With 2.5.51, kernel now boot and I'm
able to get login prompt using ramdisk. Only catch is I've to specify
root=/dev/ram0 instead of /dev/ram for it to boot.

Thanks,
Jeff.

>
> 	Also note that I have not used the in kernel-based module
> loader recently, as I have been patching my kernels to use the user
> level module code.  I am planning to try the kernel-base module loader
> in 2.5.51 once I fix other problems it has finding the root device
> under devfs.  So, it's remotely possible that you may also see module
> problems that I've missed.
>
> Adam J. Richter     __     ______________   575 Oroville Road
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