From 5673c44a99a2c17e3796d91fef9b1d72a07789d6 Mon Sep 17 00:00:00 2001
From: karina <karinyash96@gmail.com>
Date: Sat, 2 May 2026 23:01:40 +0400
Subject: [PATCH] fix: scheduler L0 table confusion, PMM bitmap rounding, dead
 task handling

---
 Kernel/Source/Arch/DTB.c     | 2 +-
 Kernel/Source/OS/Scheduler.c | 7 ++++++-
 Kernel/Source/VM/PMM.c       | 2 +-
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/Kernel/Source/Arch/DTB.c b/Kernel/Source/Arch/DTB.c
index c57cfeb..961a1f6 100644
--- a/Kernel/Source/Arch/DTB.c
+++ b/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);
diff --git a/Kernel/Source/OS/Scheduler.c b/Kernel/Source/OS/Scheduler.c
index a818f13..3310c91 100644
--- a/Kernel/Source/OS/Scheduler.c
+++ b/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;
diff --git a/Kernel/Source/VM/PMM.c b/Kernel/Source/VM/PMM.c
index 723d3c0..d1095db 100644
--- a/Kernel/Source/VM/PMM.c
+++ b/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);