diff --git a/kernel/src/init/InitRD.cpp b/kernel/src/init/InitRD.cpp
index ca9cb7d4..c3dfb9d4 100644
--- a/kernel/src/init/InitRD.cpp
+++ b/kernel/src/init/InitRD.cpp
@@ -84,8 +84,16 @@ void InitRD::for_each(void (*callback)(File& f))
     {
         TarHeader* hdr = (TarHeader*)KernelMemoryManager::get_unaligned_mapping(get_block(block));
         block++;
-        if (hdr->typeflag == 53) { continue; } // Directory
-        if (!is_valid_header(hdr)) { continue; }
+        if (hdr->typeflag == 53)
+        {
+            KernelMemoryManager::release_unaligned_mapping(hdr);
+            continue;
+        } // Directory
+        if (!is_valid_header(hdr))
+        {
+            KernelMemoryManager::release_unaligned_mapping(hdr);
+            continue;
+        }
         auto f = get_file(hdr);
         block += get_file_size_in_blocks(f);
         KernelMemoryManager::release_unaligned_mapping(hdr);
diff --git a/kernel/src/interrupts/Entry.cpp b/kernel/src/interrupts/Entry.cpp
index c44b78a3..0e313472 100644
--- a/kernel/src/interrupts/Entry.cpp
+++ b/kernel/src/interrupts/Entry.cpp
@@ -13,7 +13,13 @@ extern "C" void common_handler(SavedContext* context)
     }
     if (context->number == 14)
     {
-        printf("Page fault (RIP 0x%lx), while trying to access %lx\n", context->rip, context->cr2);
+        printf("Page fault (RIP 0x%lx), while trying to access %lx, error code %lx\n", context->rip, context->cr2,
+               context->error_code);
+        hang();
+    }
+    if (context->number == 8)
+    {
+        printf("Double fault");
         hang();
     }
     if (context->number >= 0x20 && context->number < 0x30) { IRQ::interrupt_handler(context); }
diff --git a/kernel/src/main.cpp b/kernel/src/main.cpp
index 987284a9..0202954a 100644
--- a/kernel/src/main.cpp
+++ b/kernel/src/main.cpp
@@ -1,6 +1,7 @@
 #define MODULE "main"
 
 #include "acpi/RSDT.h"
+#include "assert.h"
 #include "config.h"
 #include "cpu/CPU.h"
 #include "gdt/GDT.h"
@@ -17,6 +18,7 @@
 #include "panic/hang.h"
 #include "power/reboot.h"
 #include "render/Framebuffer.h"
+#include "render/TextRenderer.h"
 #include "scheduling/PIT.h"
 #include "std/stdio.h"
 #include "std/stdlib.h"
@@ -63,6 +65,8 @@ extern "C" void _start()
 
     kinfoln("Interrupts enabled");
 
+    ASSERT(TextRenderer::try_initialize());
+
     ACPI::SDTHeader* rootSDT = ACPI::GetRSDTOrXSDT();
     bool isXSDT = ACPI::IsXSDT();
     if (!ACPI::ValidateRSDTOrXSDT(rootSDT)) kerrorln("Invalid %s", isXSDT ? "XSDT" : "RSDT");
diff --git a/kernel/src/memory/RangeAllocator.cpp b/kernel/src/memory/RangeAllocator.cpp
index e4eaabbd..621c3a69 100644
--- a/kernel/src/memory/RangeAllocator.cpp
+++ b/kernel/src/memory/RangeAllocator.cpp
@@ -1,3 +1,5 @@
+#define MODULE "mem"
+
 #include "memory/RangeAllocator.h"
 #include "assert.h"
 #include "bootboot.h"
@@ -19,6 +21,11 @@ void RangeAllocator::init_from_mmap()
     uint64_t mmap_entries = (bootboot.size - 128) / 16;
     for (uint64_t i = 0; i < mmap_entries; i++)
     {
+        if (!MMapEnt_IsFree(ptr))
+        {
+            ptr++;
+            continue;
+        }
         if (MMapEnt_Size(ptr) > biggest_chunk_size)
         {
             biggest_chunk = (void*)MMapEnt_Ptr(ptr);