[OpenAFS] OpenAFS kernel module Linux/s390

Fri, 2 Nov 2007 15:56:18 -0400

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All-

I have successfully compiled the OpenAFS module 1.4.5 (final) for Linux
s390x, against the Debian Etch (backports) kernel headers package
"linux-headers-2.6.22-2-s390x".  However, an insmod of the module causes
a segmentation fault.

uname -a:
Linux lnxzvm82 2.6.22-2-s390x #1 SMP Fri Aug 31 00:23:26 UTC 2007 s390x
GNU/Linux

To compile, I am using the following:

#> ./configure --enable-debug-kernel
--with-linux-kernel-headers=3D/usr/src/linux-headers-2.6.22-2-s390x

#> make only_libafs

#> make install_only_libafs=20

Then, I issue the insmod:
#> insmod  /usr/local/lib/openafs/libafs-2.6.22-2-s390x.mp.ko

This generates a segfault.  Attached (snip_kern.log) is the relevant
snippet from syslog.

And, at this point, lsmod shows the module is loaded, and I cannot rmmod
it.  A full reboot is needed.
#> lsmod | grep libafs
libafs               5430876  1=20

#>rmmod -f libafs
ERROR: Removing 'libafs': Device or resource busy

Any suggestions?  Is there better debugging info I can supply?

Thank you all,
-Matt

On Wed, 2007-10-31 at 14:07 -0400, Derrick Brashear wrote:
>=20
>=20
> On 10/31/07, Smith, Matt <matt.smith@uconn.edu> wrote:
>         All-
>           Can anyone recommend an OpenAFS module version and Linux
>         kernel
>         version that are known to work on Linux/s390x?  I am using
>         Debian Etch
>         on s390x, and have tried both the 2.6.18 and 2.6.22 (from
>         etch-backports) kernels, with the OpenAFS module 1.4.2-6
>         package and
>         1.4.5pre2 from source, with no success.
>        =20
>           To avoid excessive debugging info until requested, I'll
>         simply state
>         that the above combos fail with references to conflicting
>         types for
>         'lockIdcmp2', 'HandleFlock' and 'lockIdSet', within
>         afs_vnop_flock.c .=20
>        =20
>           If it is useful, I can send whatever output is requested.  I
>         just
>         didn't want to flood the list if it is known that it "just
>         won't work".
>=20
> that should have been fixed in 1.4.4; it hints that configure isn't
> working right detecting features in your kernel.
>=20
>  you might put config.log somewhere, as well as the log messages. you
> don't have to mail it. AFS or on the web is fine.
>=20
--=20
Matt Smith
matt.smith@uconn.edu
University Information Technology Services (UITS)
University of Connecticut
PGP Key ID: 0xE9C5244E

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