[OpenAFS-devel] Porting of AFS into UML

[Raymond Wong]

Hi Kris,

I am using 1.2.9a for compilation.  Not yet keep up with the newest cvs.
But have you encountered problems in compiling 1.2.9a?   Currently, I am
using uml version 2.4.19um.  I did the following steps,

1. Download linux-2.4.19.tar.gz.
2. Download dot-config of uml 2.4.19um
3. Replace dot-config in linux source tree and make dep
4. Go back to openafs-kernel-source and make

The result is MODLOAD-2.4.19-MP.  When I insmod-ed either one of them as


bash-2.05# insmod libafs-2.4.19.o  -f
Warning: kernel-module version mismatch
        libafs-2.4.19.o was compiled for kernel version 2.4.19
        while this kernel is version 2.4.19-5um
libafs-2.4.19.o: unresolved symbol remove_wait_queue_Rsmp_941ba7c5
libafs-2.4.19.o: unresolved symbol try_inc_mod_count_Rsmp_e6105b23
libafs-2.4.19.o: unresolved symbol generic_read_dir_Rsmp_91c1152b
libafs-2.4.19.o: unresolved symbol filemap_fdatasync_Rsmp_a4eb0987
libafs-2.4.19.o: unresolved symbol generic_file_read_Rsmp_4b008759
libafs-2.4.19.o: unresolved symbol path_walk_Rsmp_82fa2492
libafs-2.4.19.o: unresolved symbol dget_locked_Rsmp_d183b29b
libafs-2.4.19.o: unresolved symbol page_readlink_Rsmp_21238a47
libafs-2.4.19.o: unresolved symbol iget4_Rsmp_bca964ec...

It seems the makefile wrongly inteprets my uml as a SMP version.  Then I
changed config.cache to force to say "no" at the smp option but it seems
doesn't work.  So, is this problem addressed in 1.2.10?

Or actually, I might miss to include um patch.  I'll try to recompile
tomorrow and let's see what happens.

Thanks, Kris.

Ray

-----Original Message-----
From: openafs-devel-admin@openafs.org
[mailto:openafs-devel-admin@openafs.org] On Behalf Of Kris Van Hees
Sent: Tuesday, July 08, 2003 12:26 AM
To: OpenAFS-devel@openafs.org
Subject: Re: [OpenAFS-devel] Porting of AFS into UML


On Sat, Jul 05, 2003 at 08:15:25PM +0800, Raymond Wong wrote:
> Has anyone done any coding related to the porting of AFS into UML 
> (User-mode Linux)?  I found it is quite painful.  Currently, I found 
> no manuals in relation to setting up whole AFS by using AFS source 
> code only.  I have successfully compiled the AFS source in UML but I 
> have no idea how to configure AFS manually.  Could anyone give me some

> hints?

Raymond,

	I added code for supporting the User Mode Linux as  a  supported
architecture.  The code should be in both 1.2.10 and in the CVS HEAD.  I
do notice that I need to update the patch for CVS HEAD because it uses a
mechanism to detect UML which no longer works with the newer UML release
code.  Note that you do need to have the Linux kernel source  code  with
the UML patch applied available in /usr/src/linux.

	The configuration should be identical to the one used for  Linux
based OpenAFS.

	Kris
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