1. Release Notes for Unbreakable Enterprise Kernel Release 4 Update 5
  2. Known Issues
  3. Unloading or removing the rds_rdma module is unsupported

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).