Hello Experts,
I'm trying to enable some infiniband related kernel modules (ib_ipoib,
iser, isert, etc) on my RHEL 7.6 instance running on IBM linuxONE
machine. (I have found the code in the kernel source tree.)
After installing the kernel source rpm in a normal user and make module
selection using the "make menuconfig" command, i can successfully
re-built all the selected modules (include the new selection) with the
"make modules" command.
I copied the desired module files to the
"/lib/modules/3.10.0-957.el7.s390x/kernel/drivers/infiniband/ulp" dir
and the depmod -a command also was executed with no errors.
[root@bz094f ulp]# pwd
/lib/modules/3.10.0-957.el7.s390x/kernel/drivers/infiniband/ulp
[root@bz094f ulp]#
[root@bz094f ulp]# ls -l ipoib
total 5704
-rw-r--r--. 1 root root 5837016 Dec 9 15:50 ib_ipoib.ko
[root@bz094f ulp]# ls -l iser
total 2880
-rw-r--r--. 1 root root 2946496 Dec 9 15:50 ib_iser.ko
[root@bz094f ulp]# ls -l isert
total 1384
-rw-r--r--. 1 root root 1414304 Dec 9 15:50 ib_isert.ko
[root@bz094f ulp]#
But after reboot the OS, i found the new copied modules can't be loaded
by the kernel.
errors reported in the /var/log/message:
Dec 9 15:49:05 bz094f systemd-modules-load: Failed to insert
'ib_ipoib': Exec format error
Dec 9 15:49:05 bz094f systemd-modules-load: Failed to find module 'ib_umad'
Dec 9 15:49:05 bz094f systemd: rdma-load-modules@infiniband.service:
main process exited, code=exited, status=1/FAILURE
Dec 9 15:49:05 bz094f systemd: Failed to start Load RDMA modules from
/etc/rdma/modules/infiniband.conf.
Dec 9 15:49:05 bz094f systemd: Unit
rdma-load-modules@infiniband.service entered failed state.
Dec 9 15:49:05 bz094f systemd: rdma-load-modules@infiniband.service failed.
Dec 9 15:49:05 bz094f kernel: ib_ipoib: no symbol version for module_layout
Dec 9 15:49:05 bz094f systemd-modules-load: Failed to insert 'ib_iser':
Exec format error
Dec 9 15:49:05 bz094f kernel: ib_iser: no symbol version for module_layout
when load the module manually, it will produce the same error:
[root@bz094f ~]# modprobe ib_ipoib
modprobe: ERROR: could not insert 'ib_ipoib': Exec format error
error reported in the dmesg:
[ 9.589647] ib_ipoib: no symbol version for module_layout
[ 9.597600] ib_srp: no symbol version for module_layout
[root@bz094f ~]# modinfo ib_ipoib
filename:
/lib/modules/3.10.0-957.el7.s390x/kernel/drivers/infiniband/ulp/ipoib/ib_ipoib.ko
license: Dual BSD/GPL
description: IP-over-InfiniBand net driver
author: Roland Dreier
alias: rtnl-link-ipoib
rhelversion: 7.6
srcversion: 917AA4365B3509F0B347217
depends: ib_core,ib_cm
intree: Y
vermagic: 3.10.0 SMP mod_unload modversions
parm: max_nonsrq_conn_qp:Max number of connected-mode QPs per
interface (applied only if shared receive queue is not available) (int)
parm: cm_data_debug_level:Enable data path debug tracing for
connected mode if > 0 (int)
parm: mcast_debug_level:Enable multicast debug tracing if > 0
(int)
parm: data_debug_level:Enable data path debug tracing if > 0 (int)
parm: send_queue_size:Number of descriptors in send queue (int)
parm: recv_queue_size:Number of descriptors in receive queue (int)
parm: ipoib_enhanced:Enable IPoIB enhanced for capable devices
(default = 1) (0-1) (int)
parm: debug_level:Enable debug tracing if > 0 (int)
[root@bz094f ~]#
I had also tried the "make modules_install" command, but get the error
below.
[root@bz094f ~]# su - zbrand
Last login: Wed Dec 9 16:38:08 CST 2020 on pts/1
[zbrand@bz094f ~]$ cd
/home/zbrand/rpmbuild/BUILD/kernel-3.10.0-957.el7/linux-3.10.0-957.el7.s390x
[zbrand@bz094f linux-3.10.0-957.el7.s390x]$
[zbrand@bz094f linux-3.10.0-957.el7.s390x]$ sudo make modules_install
INSTALL arch/s390/appldata/appldata_mem.ko
Can't read private key
make[1]: *** [arch/s390/appldata/appldata_mem.ko] Error 2
make: *** [_modinst_] Error 2
[zbrand@bz094f linux-3.10.0-957.el7.s390x]$
So, did anybody have idea on this?
Many Thanks!
--
Regards
FuLong Wang
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