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In this post we create an allocator that provides free physical frames for a future paging module. To get the required information about available and used memory we use the Multiboot information structure. Additionally, we improve the panic handler to print the corresponding message and source line. The full source code is available on GitHub. Feel free to open issues there if you have any problems or improvements. You can also leave a comment at the bottom. 🔗 Preparation We still have a reall...