I'm having trouble building a new CPINT on SLES9 (SP3)
and I wonder if someone else has seen these symptoms.
Maybe someone can tell me what I'm doing wrong.
It builds cleanly, but refuses to load. (64-bit)
DETAILS
We needed to upgrade CPINT (that story is for another note)
so I got the latest and greatest source from Dr. Ferguson.
It built just fine, but when I tried to 'insmod', I got
insmod: error inserting './cpint_mod.ko': -1 Invalid module format
I thought maybe I needed to play EXPLICITLY by the rules,
so I dropped it into /lib/modules, ran 'depmod' and then
'modprobe', and got
FATAL: Error inserting cpint
(/lib/modules/2.6.5-7.191-s390x/extra/cpint.ko):
Invalid module format
I called Neale, he considered what we were going through
and suggested making sure that the support level might be mis-matched
(between the kernel and 'insmod' and friends). Sure enough, we had
the SP2 modutils, but this is an SP3 kernel. So I upgraded modutils
... but got the same problem.
Finally, running 'strace' against an explicity 'insmod' shows
# strace insmod ./cpint_mod.ko
init_module("^?ELF^B^B^A", 0x8edb7) = -1
ENOEXEC (Exec format error)
The ELF magic looks ugly, but I don't really know
if it is out of whack or if that is how it's supposed to look.
I did have to wrangle the kernel source into a state where I could
build kernel modules. But that's not surprising. And I have now
re-done 'make config' and 'make modules' numerous times.
(But it occurs to me as I send this note that I am NOT running a
home-built kernel.)
-- R;
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