infiniband rmmod: ERROR: Module xxxx is in use by:yyyyy

rmmod: ERROR: Module A is in use by:B

参考

https://askubuntu.com/questions/521222/how-to-unload-a-kernel-module-which-is-in-use

方法

First, find out, which other modules use the module A:

lsmod | grep A
You will get a list like this:

module size used_by（B）
Try unloading these modules (used_by) before or together with the module you want to unload:

sudo modprobe -r
If you want to prevent the module from loading on the next boot, add it to the blacklist:

echo -e "sdhci\n" | sudo tee -a /etc/modprobe.d/blacklist.conf