Unloading or removing the rds_rdma
module is
unsupported
Once the rds_rdma
module has been loaded, you
cannot remove the module using either rmmod
or modprobe -r. Unloading of the
rds_rdma
module is unsupported and can
trigger a kernel panic. Do not set the
module_unload_allowed
flag for this module.
(Bug ID 23580850).