Set the stack index of the double fault IDT entry

Test our exception handler by invoking a breakpoint exception

Use linked list allocator instead of bump allocator

Turn page of old P4 into guard page

Remove paging testing code again

Create a new AreaFrameAllocator and allocate maximum number of frames

Avoid deadlock on nested `print!` invokation

Print a “Hello World!” in Rust

Enable paging

Ignore the build directory