You may have faced the problem which a dead/unreferenced process is holding a file descriptor to a file, so that you cant delete it using rm command, and giving an error message like below:
Cannot delete folder with rm -rf. Error: device or resource busy
Here what you have to do is to identify the process been hanged and kill it.
this will give you a list of process which are accessing files in the given folder.
kill that session using:
if you still couldn't kill it use below.
kill -s SEGV
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