nvidia-smi命令卡住，长时间刷不出来

使用linux服务器时出现如题问题，说明显卡驱动出现错误

1、sudo nvidia-bug-report.sh     在当前路径下生成显卡问题报告

2、对问题报告解压并查看

3、翻阅到下面部分，发现从下午16：11之后就没有记录，说明在这里出现问题

  journalctl -b -0:
Dec 16 15:24:20 ubuntu kernel: nvidia-nvlink: Nvlink Core is being initialized, major device number 244
Dec 16 15:24:21 ubuntu kernel: NVRM: loading NVIDIA UNIX x86_64 Kernel Module  418.43  Tue Feb 19 01:12:11 CST 2019
Dec 16 15:24:21 ubuntu kernel: nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms  418.43  Tue Feb 19 01:05:14 CST 2019
Dec 16 15:24:21 ubuntu kernel: [drm] [nvidia-drm] [GPU ID 0x00000400] Loading driver
Dec 16 15:24:21 ubuntu kernel: [drm] [nvidia-drm] [GPU ID 0x00000500] Loading driver
Dec 16 15:24:21 ubuntu kernel: [drm] [nvidia-drm] [GPU ID 0x00000600] Loading driver
Dec 16 15:24:21 ubuntu kernel: [drm] [nvidia-drm] [GPU ID 0x00000700] Loading driver
Dec 16 15:24:21 ubuntu kernel: [drm] [nvidia-drm] [GPU ID 0x00000800] Loading driver
Dec 16 15:24:21 ubuntu kernel: [drm] [nvidia-drm] [GPU ID 0x00000b00] Loading driver
Dec 16 15:24:21 ubuntu kernel: [drm] [nvidia-drm] [GPU ID 0x00000c00] Loading driver
Dec 16 15:24:21 ubuntu kernel: [drm] [nvidia-drm] [GPU ID 0x00000d00] Loading driver
Dec 16 15:24:21 ubuntu kernel: [drm] [nvidia-drm] [GPU ID 0x00000e00] Loading driver
Dec 16 15:24:21 ubuntu kernel: [drm] [nvidia-drm] [GPU ID 0x00000f00] Loading driver
Dec 16 16:11:41 ubuntu kernel: nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 242

 4、nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 242

这一问题是由于电源电压不足，更换大功率电源，解决问题