May  6 23:06:41 viper kernel: [   23.516177] nvidia: loading out-of-tree module taints kernel.
May  6 23:06:41 viper kernel: [   23.516180] nvidia: module license 'NVIDIA' taints kernel.
May  6 23:06:41 viper kernel: [   23.516181] Disabling lock debugging due to kernel taint