StackTracer: only show kernel addresses for now, until there are more checks

kernel/src/panic/Panic.cpp

@@ -5,7 +5,9 @@
 #include "interrupts/IDT.h"
 #include "io/PIC.h"
 #include "log/Log.h"
+#include "memory/VMM.h"
 #include "misc/MSR.h"
+#include "render/Framebuffer.h"
 #include "render/TextRenderer.h"
 #include "std/stdio.h"
 #include "thread/Scheduler.h"
@@ -25,6 +27,8 @@ void dump_registers(Context* context)
 
 [[noreturn]] void __panic_stub(Context* context)
 {
+    VMM::switch_back_to_kernel_address_space();
+    VMM::apply_address_space();
     if (context) dump_registers(context);
 
     if (InitRD::is_initialized())
@@ -73,6 +77,8 @@ extern "C" [[noreturn]] bool __do_int_panic(Context* context, const char* file,
 
     TextRenderer::reset();
 
+    framebuffer0.clear(Color::Black);
+
     if (context->number >= 0x20 && context->number < 0x30) { PIC::send_eoi((uint8_t)(context->irq_number & 0xFF)); }
 
     Task* task;
@@ -93,6 +99,8 @@ extern "C" [[noreturn]] bool __do_panic(const char* file, int line, const char*
 
     TextRenderer::reset();
 
+    framebuffer0.clear(Color::Black);
+
     Task* task;
     if ((task = Scheduler::current_task()))
     {

kernel/src/trace/StackTracer.cpp

@@ -24,7 +24,7 @@ typedef struct stackframe
 void StackTracer::trace()
 {
     stackframe* frame = (stackframe*)m_base_pointer;
-    while (frame && frame->instruction)
+    while (frame && frame->instruction && Memory::is_kernel_address(frame->instruction))
     {
         char symbol_name[512];
         get_symbol_name(frame->instruction - sizeof(uintptr_t), symbol_name, sizeof(symbol_name));