From: Paul H. Hargrove (PHHargrove_at_lbl_dot_gov)
Date: Mon Apr 06 2009 - 14:45:13 PDT
Karthik,
As the line in dmesg and your examination of uname and the kernel
build dir show, there is a disagreement between the "smp" and "custom"
suffix. As you may have already determined, this it the cause of BLCR's
insmod failure. Now we need to determine the cause of this difference.
I am guessing from the "el5" in the kernel version string that you are
running a RHEL5 distro. Unfortunately I don't have any similar platform
available to examine. So, I can only guess.
One possibility that comes to mind is that
/lib/modules/2.6.18-92.1.10.el5_lustre.1.6.6smp/build is a symlink into
something like
/usr/src/kernels/2.6.18-92.1.10.el5_lustre.1.6.6-obj/x86_64/smp. Such a
setup is normal. However, if somebody has then built a kernel in the
same directory, then the files (like utsrelease.h) would end up
corresponding to that build (w/ a suffix of "custom") rather than the
original one (with a suffix of "smp"). If that is the case, then running
$ rpm -Vf /lib/modules/2.6.18-92.1.10.el5_lustre.1.6.6smp/build/Makefile
will produce output indicating files that have changed relative to the
ones installed with the kernel-devel (or similar) RPM. If that is the
case, then reinstalling the kernel-devel (or similar) RPM should resolve
the problem.
If the command above produces no output or a message about not belonging
to any package, let me know and I'll see what else I can think of.
-Paul
Karthik Gopalakrishnan wrote:
> Hi Paul.
>
> I configured & installed BLCR 0.8.1 from source using
> [root@x4 blcr-0.8.1]# ./configure --prefix=/usr/local/blcr-0.8.1
> --with-linux=/lib/modules/2.6.18-92.1.10.el5_lustre.1.6.6smp/build/ &&
> make && make install
>
> The build & installation go through fine. When I try to load
> blcr_imports.ko, I get the following error message in dmesg.
> "Running kernel UTS_RELEASE (2.6.18-92.1.10.el5_lustre.1.6.6smp) does
> not match that used to build BLCR
> (2.6.18-92.1.10.el5_lustre.1.6.6custom)"
>
> Additionally,
>
> [root@x4 build]# uname -r
> 2.6.18-92.1.10.el5_lustre.1.6.6smp
> [root@x4 build]# cat
> /lib/modules/2.6.18-92.1.10.el5_lustre.1.6.6smp/build/include/linux/utsrelease.h
> #define UTS_RELEASE "2.6.18-92.1.10.el5_lustre.1.6.6custom"
>
> How do I resolve this problem?
>
> Thanks & Regards,
> Karthik
>
--
Paul H. Hargrove PHHargrove_at_lbl_dot_gov
Future Technologies Group Tel: +1-510-495-2352
HPC Research Department Fax: +1-510-486-6900
Lawrence Berkeley National Laboratory