47hxl-53r / linux-kernel-module Goto Github PK

Description:

This issue is related to a kernel module that demonstrates a behavior where the "Goodbye linux kernel!" message, generated in the exit_func, is only displayed in kernel logs (dmesg) upon the reinsertion of the module. Additionally, the exit message combines with the initialization messages from init_func when the module is reinserted.

Expected Behavior:

• The "Goodbye linux kernel!" message generated in exit_func should be immediately displayed in the kernel logs (dmesg) when the module is removed using 'rmmod.'

Current Behavior:

• The exit message is only shown when the module is reinserted, and it combines with the initialization messages.

Relevant Functions:

• init_func: The function for initializing the kernel module.
• exit_func: The function for cleaning up the module upon removal.

Steps to Reproduce:

1. Insert the module using 'insmod.'
2. Observe the kernel logs with 'dmesg' to view the initialization messages.
3. Remove the module using 'rmmod.'
4. Expected: The "Goodbye linux kernel!" message should be displayed in the kernel logs.
5. Actual: The "Goodbye linux kernel!" message is only displayed when the module is reinserted.