Kernel: Panic wont print stacktrace if it has already paniced

This prevents stack trace dump to panic and loop

kernel/CMakeLists.txt

@@ -27,6 +27,7 @@ set(KERNEL_SOURCES
 	kernel/kernel.cpp
 	kernel/Memory/Heap.cpp
 	kernel/Memory/kmalloc.cpp
+	kernel/Panic.cpp
 	kernel/PCI.cpp
 	kernel/PIC.cpp
 	kernel/PIT.cpp

kernel/include/kernel/Panic.h

@@ -4,11 +4,11 @@
 
 #define panic(...) detail::panic_impl(__FILE__, __LINE__, __VA_ARGS__)
 
-namespace Kernel
+namespace Kernel::detail
 {
 
-	namespace detail
-	{
+	extern bool g_paniced;
+
 	template<typename... Args>
 	__attribute__((__noreturn__))
 	static void panic_impl(const char* file, int line, const char* message, Args... args)
@@ -16,11 +16,14 @@ namespace Kernel
 		asm volatile("cli");
 		derrorln("Kernel panic at {}:{}", file, line);
 		derrorln(message, args...);
+		if (!g_paniced)
+		{
+			g_paniced = true;
 			Debug::dump_stack_trace();
+		}
 		for (;;)
 			asm volatile("hlt");
 		__builtin_unreachable();
 	}
-	}
 
 }

kernel/kernel/Panic.cpp

@@ -0,0 +1,6 @@
+#include <kernel/Panic.h>
+
+namespace Kernel::detail
+{
+	bool g_paniced = false;
+}