Todd Lyons writes:
> Nikita Danilov wanted us to know:
>
> > > Still compiling. In the reiser4 code right now....well, it built and
> > > linked. That's a good sign.
>
> It compiled and installed, but it doesn't load:
>
> [root@trip ~]# modprobe reiser4
> /lib/modules/2.5.45-3/kernel/fs/reiser4/reiser4.o: unresolved symbol
> page_states__per_cpu
> modprobe: insmod /lib/modules/2.5.45-3/kernel/fs/reiser4/reiser4.o failed
> modprobe: insmod reiser4 failed
>
> > > Curious if anybody feels that I should have chosen different values for
> > > any of the options.
> >Reasonable options for debugging. Will result in dead-slow reiser4 though.
>
> Ok, will remove the debugging options. In the meantime, gotta figure
> out why it's got that unresolved symbol.
This is bug in the handling of per-cpu variables. Andrew Morton and
Rusty Russell posted patches to fix it. Here is one:
----------------------------------------------------------------------
diff -urpN --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff \
--minimal linux-2.5.45/include/asm-generic/percpu.h \
working-2.5.45-tmp/include/asm-generic/percpu.h
--- linux-2.5.45/include/asm-generic/percpu.h 2002-10-31 12:36:56.000000000 +1100
+++ working-2.5.45-tmp/include/asm-generic/percpu.h 2002-11-02 09:20:06.000000000 \
+1100 @@ -35,4 +35,10 @@ extern unsigned long __per_cpu_offset[NR
#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(var##__per_cpu)
#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(var##__per_cpu)
+/* Genksyms can't follow the percpu declaration. Give it a fake one. */
+#ifdef __GENKSYMS__
+#undef DEFINE_PER_CPU
+#define DEFINE_PER_CPU(type, name) type name##__per_cpu
+#endif /*__GENKSYMS__*/
+
#endif /* _ASM_GENERIC_PERCPU_H_ */
----------------------------------------------------------------------
Please let me know whether this helps.
Alternatively, you can compile reiser4 as built-in (not module), or
disable module versioning.
Nikita.
