neutron wrote:
Hi all,
I'm writing a kernel module that make use of basic IB verbs to
communicate, like:
ib_register_client, ib_unregister_client, ib_alloc_pd,
ib_create_qp, ib_reg_phys_mr, etc.
I can compile the code into a kernel module: ib_rdma_lat.ko. This
module is to test the RDMA write latency from kernel module.
But when I "insmod", I got error reports at /var/log/messages:
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_unregister_client
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_unregister_client
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_create_cq
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_create_cq
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_reg_phys_mr
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_reg_phys_mr
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_dereg_mr
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_dereg_mr
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_register_client
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_register_client
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_destroy_cq
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_destroy_cq
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_query_port
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_query_port
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_alloc_pd
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_alloc_pd
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_create_qp
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_create_qp
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_modify_qp
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_modify_qp
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_destroy_qp
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_destroy_qp
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: disagrees about version of
symbol ib_dealloc_pd
Feb 15 16:33:28 wci11 kernel: ib_rdma_lat: Unknown symbol ib_dealloc_pd
I'm running rhel5. I have rebooted the node many times but didn't
help at all.
From OFED_tips:
4. External Module Compilation Over OFED-1.4
===============================================================================
To build kernel modules depending on OFED's modules, take the
Modules.symvers
file from <prefix>/src/openib/Module.symvers (part of the
kernel-ib-devel RPM)
and copy it to the modules subdir and then compile your module.
If <prefix>/src/openib/Module.symvers does not exist or it is empty, use the
create_Module.symvers.sh (a part of the ofed-docs RPM) script to create the
Module.symvers file.
See "Module versioning & Module.symvers" in the modules.txt from kernel
documentation (e.g. linux-2.6.20/Documentation/kbuild/modules.txt).
Tziporet
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