在FreeBSD下重新装nvidia驱动后，想重新加载新驱动，进行了下面的尝试：

kldstat查看当前加载的库

kldstat
Id Refs Address                Size Name
 1   75 0xffffffff80200000  1d34598 kernel
 2    1 0xffffffff81f35000   5d51c8 zfs.ko
 3    1 0xffffffff8250b000     7718 cryptodev.ko
 4    1 0xffffffff82e19000   107330 nvidia-modeset.ko
 5    1 0xffffffff83000000  1fcfa10 nvidia.ko
 6    2 0xffffffff82f21000    31a10 linux.ko
 7    6 0xffffffff82f53000     be70 linux_common.ko
 8    1 0xffffffff82f5f000     3220 intpm.ko
 9    1 0xffffffff82f63000     2178 smbus.ko
10    1 0xffffffff82f66000     7480 vmci.ko
11    1 0xffffffff82f6e000    2dc30 linux64.ko
12    1 0xffffffff82f9c000     2278 pty.ko
13    1 0xffffffff82f9f000     3558 fdescfs.ko
14    1 0xffffffff82fa3000     73c0 linprocfs.ko
15    1 0xffffffff82fab000     440c linsysfs.ko
16    1 0xffffffff82fb0000     3360 uhid.ko
17    1 0xffffffff82fb4000     33c0 usbhid.ko
18    1 0xffffffff82fb8000     3380 hidbus.ko
19    1 0xffffffff82fbc000     3360 wmt.ko
20    1 0xffffffff82fc0000     4758 nullfs.ko

使用kldunload卸载库

kldunload  nvidia
kldunload: can't unload file: Device busy

因为正在用着无法卸载。同样也没法load

kldload nvidia
kldload: can't load nvidia: module already loaded or in kernel

只好重启机器了。

等以后学会了动态调整再来记录下。

hu May  2 19:52:25 2024       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 550.54.14              Driver Version: 550.54.14      CUDA Version: 12.4     |
|-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|                                         |                        |               MIG M. |
|=========================================+========================+======================|
|   0  Tesla P4                       Off |   00000000:13:00.0 Off |                    0 |
| N/A   48C    P0             22W /   75W |       0MiB /   7680MiB |      2%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+