OK, I tried building the 2.1.4 against both the 2.6.9-42 lustre and
2.6.9-55 lustre kernels with exactly the same issue.
Stu.
On Wed, 2007-09-19 at 23:46 -0400, Erez Zadok wrote:
> In message <[EMAIL PROTECTED]>, Stuart Midgley writes:
> > Evening
> >
> > I have been trying to get unionfs 2.1.3 (and previously 2.1.2)
> > working on a lustre rhel4 kernel
> >
> > 2.6.9-42.0.10.EL_lustre-1.4.10.1smp
> >
> > The patch to fs/Makefile failed to apply, but was easily applied by
> > hand. There was also an issue with compat.h with the redefinition of
> > atomic_inc_return which I found defined elsewhere in the kernel
> > source tree. The simple solution was
> >
> > #if 0
> > static inline int atomic_inc_return(atomic_t *v)
> > {
> > atomic_inc(v);
> > return atomic_read(v);
> > }
> > #endif
> >
> > So the kernel module now builds perfectly. However, when I try to
> > insert the module I get
> >
> > linux-2.6.9-42.0.10.EL_lustre-1.4.10.1/fs/unionfs # insmod unionfs.ko
> > insmod: error inserting 'unionfs.ko': -1 Unknown symbol in module
> >
> > and dmesg is showing
> >
> > unionfs: Unknown symbol fsstack_copy_inode_size
> >
> > Now, I am really confused. fsstack_copy_inode_size is in fs/stack.c
> >
> > void fsstack_copy_inode_size(struct inode *dst, const struct inode *src)
> > {
> > i_size_write(dst, i_size_read((struct inode *)src));
> > dst->i_blocks = src->i_blocks;
> > }
> > EXPORT_SYMBOL_GPL(fsstack_copy_inode_size);
> >
> > and should be in the kernel??? I would have thought the compile
> > would fail if it wasn't present? Of course, the kernel I'm running
> > (binary from a CFS supplied rpm) may not have this symbol...
> >
> > Ideas?
> > Stu.
>
> Stu, make sure that fs/stack.c gets compiled, and that it gets linked into
> fs/libfs.a. Your fs/Makefile should list stack.o in obj-y. I suspect that
> your hand-patching of fs/Makefile missed the latter.
>
> And, when in doubt, make clean and recompile your kernel from scratch.
>
> Erez.
--
Dr Stuart Midgley
Manage Production Services
DownUnder GeoSolution
[EMAIL PROTECTED]
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