Re: [BUG 2.4.7] enabling RWSEM_DEBUG

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> Unfortunately, I ran into a bug with enabling RWSEM_DEBUG. The bug still
> exists in 2.4.7.

It's because you've got CONFIG_MODVERSIONS=y set. This causes the following to
be emitted and automatically included:

        [include/linux/modules/rwsem.ver]
        #define __ver_rwsemtrace smp_8447b3cd
        #define rwsemtrace _set_ver(rwsemtrace)

This then causes the #ifndef rwsemtrace in fail, and thus not to include an
actual declaration of the rwsemtrace function.

David
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