Infiband works with RHEL 6 but fails to initialize in Red Hat Enterprise Linux Realtime kernel

Issue

• Infiband works with RHEL 6 but fails to initialize with Red Hat Enterprise Linux Realtime kernel

modprobe -v mlx4_ib results in

install modprobe --ignore-install $((modprobe -c | grep -wq "^allow_unsupported_modules") && echo '--allow-unsupported-modules') mlx4_core && if [ -e /etc/infiniband/openib.conf ]; then if ( grep -q "^MLX4_EN_LOAD=yes" /etc/infiniband/openib.conf > /dev/null 2>&1); then modprobe mlx4_en; fi; else modprobe mlx4_en; fi
insmod /lib/modules/3.2.23-rt37.56.el6rt.x86_64/kernel/drivers/net/ethernet/mellanox/mlx4/mlx4_core.ko pfctx=0 pfcrx=0
FATAL: Error inserting mlx4_core (/lib/modules/3.2.23-rt37.56.el6rt.x86_64/kernel/drivers/net/ethernet/mellanox/mlx4/mlx4_core.ko): Unknown symbol in module, or unknown parameter (see dmesg)
WARNING: Error running install command for mlx4_core
insmod /lib/modules/3.2.23-rt37.56.el6rt.x86_64/kernel/drivers/infiniband/hw/mlx4/mlx4_ib.ko
FATAL: Error inserting mlx4_ib (/lib/modules/3.2.23-rt37.56.el6rt.x86_64/kernel/drivers/infiniband/hw/mlx4/mlx4_ib.ko): Unknown symbol in module, or unknown parameter (see dmesg)

Following message is noticed in dmesg

mlx4_core: Unknown parameter `pfctx'
mlx4_core: Unknown parameter `pfctx'