fix: scheduler L0 table confusion, PMM bitmap rounding, dead task handling

Kernel/Source/Arch/DTB.c

@@ -25,7 +25,7 @@ void DTBParse(Pointer dtb, VMBootMemoryMap* bootMap) {
     ASCII* currentNode = "";
     UInt32 currentDepth = 0;
     UInt32 reservedMemoryDepth = 0; 
-    bool inReservedMemory = false;
+    Boolean inReservedMemory = false;
 
     while (true) {
         UInt32 token = BytesSwap32(*(UInt32*)structs);

Kernel/Source/OS/Scheduler.c

@@ -15,7 +15,7 @@ static OSProcess sOSSchedulerKernelProcess;
 void SchedulerInitialize() {
     sOSSchedulerKernelProcess.id = 0;
     sOSSchedulerKernelProcess.state = OSTaskStateRunning;
-    sOSSchedulerKernelProcess.l0Table = gVMKernelL0Table;
+    sOSSchedulerKernelProcess.l0Table = (Address*)VMPhysToHHDM((Address)gVMKernelL0Table);
     StringCopy(sOSSchedulerKernelProcess.name, "kernel");
 
     OSTask* kernelTask = (OSTask*)HeapAllocate(sizeof(OSTask));
@@ -90,6 +90,11 @@ Address SchedulerNext(Address stackPointer) {
 
     OSTask* nextTask = gOSSchedulerCurrentTask->next;
     loop {
+        if (nextTask->state == OSTaskStateDead) {
+            nextTask = nextTask->next;
+            if (nextTask == gOSSchedulerCurrentTask) OSPanic("No running tasks");
+            continue;
+        }
         if (nextTask->state == OSTaskStateSleeping && nextTask->sleepTicks == 0) nextTask->state = OSTaskStateRunning;
         if (nextTask->state == OSTaskStateRunning) break;
         nextTask = nextTask->next;

Kernel/Source/VM/PMM.c

@@ -28,7 +28,7 @@ static inline void BitmapUnset(MemoryPointer bitmap, Address address) {
 void PMMInitialize(VMBootMemoryMap* bootMap) {
     sPMMRamBase = bootMap->totalRAM.base;
     sPMMTotalPages = bootMap->totalRAM.size / kVMPageSize;
-    sPMMBitmapSize = sPMMTotalPages / kVMBlocksPerByte;
+    sPMMBitmapSize = (sPMMTotalPages + kVMBlocksPerByte - 1) / kVMBlocksPerByte;
     sPMMBitmap = (MemoryPointer)_kernelEnd;
     MemorySet(sPMMBitmap, 0, sPMMBitmapSize);