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Race Condition #29

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Merged
merged 1 commit into from
Jul 11, 2025
Merged

Race Condition #29

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3 changes: 0 additions & 3 deletions Kernel/Core/Kernel.c
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Original file line number Diff line number Diff line change
Expand Up @@ -268,8 +268,6 @@ void AsciiSplash(void) {
ConsoleSetColor(VGA_COLOR_DEFAULT);
}

// Enhanced kernel initialization with better error handling


static InitResultT SystemInitialize(void) {
// Initialize GDT
Expand Down Expand Up @@ -323,7 +321,6 @@ void KernelMain(uint32_t magic, uint32_t info) {
PrintKernelSuccess("[KERNEL] Security manager created with PID: ");
PrintKernelInt(security_pid);
PrintKernel("\n");

PrintKernelSuccess("[KERNEL] Core system modules loaded\n");
PrintKernelSuccess("[KERNEL] Kernel initialization complete\n");
PrintKernelSuccess("[SYSTEM] Transferring control to SecureKernelIntegritySubsystem...\n\n");
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8 changes: 4 additions & 4 deletions Kernel/Drivers/Interrupts.c
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Expand Up @@ -68,7 +68,7 @@ static void FastDisplayTicks(uint64_t ticks) {
}


static void HandleFatalException(const char* message, uint64_t interrupt_number) {
static void FatalExceptionHandler(const char* message, uint64_t interrupt_number) {
PrintKernelWarning(message);
PrintKernelWarning(" at interrupt: ");
PrintKernelInt(interrupt_number);
Expand All @@ -89,17 +89,17 @@ void InterruptHandler(struct Registers* regs) {
ASSERT(regs != NULL);
if (regs->interrupt_number == 32) {
tick_count++;
FastDisplayTicks(tick_count);
// FastDisplayTicks(tick_count);
FastSchedule(regs);
outb(0x20, 0x20);
return;
}
if (regs->interrupt_number == 13) {
HandleFatalException("FATAL EXCEPTION - Page fault (GPF handler)", regs->interrupt_number);
FatalExceptionHandler("FATAL EXCEPTION - Page fault (GPF handler)", regs->interrupt_number);
return;
}
if (regs->interrupt_number >= 255) {
HandleFatalException("FATAL EXCEPTION - OVERFLOWING - Cannot handle interrupt. (>256)", regs->interrupt_number);
FatalExceptionHandler("FATAL EXCEPTION - OVERFLOWING - Cannot handle interrupt. (>256)", regs->interrupt_number);
return;
}

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2 changes: 1 addition & 1 deletion Kernel/Drivers/Pic.h
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
#ifndef PIC_H
#define PIC_H

#define PIT_FREQUENCY_HZ 5000 // Default PIT frequency in Hz (1000Hz = 1ms intervals)
#define PIT_FREQUENCY_HZ 1000

int PicInstall();
void PitInstall();
Expand Down
10 changes: 7 additions & 3 deletions Kernel/Process/Process.c
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Original file line number Diff line number Diff line change
Expand Up @@ -469,25 +469,29 @@ void RegisterSecurityManager(uint32_t pid) {
security_manager_pid = pid;
}

void SystemService(void) {
void SystemTracer(void) {
PrintKernelSuccess("[SYSTEM] SystemTracer() has started. Scanning...\n");
while (1) {
CleanupTerminatedProcesses();
Yield();
__asm__ __volatile__("hlt");
}
}

void SecureKernelIntegritySubsystem(void) {
PrintKernelSuccess("[SYSTEM] MLFQ scheduler initializing...\n");
PrintKernelSuccess("[SYSTEM] SecureKernelIntegritySubsystem() initializing...\n");
Process* current = GetCurrentProcess();
RegisterSecurityManager(current->pid);

PrintKernelSuccess("[SYSTEM] Creating system service...\n");
uint32_t service_pid = CreateSecureProcess(SystemService, PROC_PRIV_SYSTEM);
uint32_t service_pid = CreateSecureProcess(SystemTracer, PROC_PRIV_SYSTEM);
if (service_pid) {
PrintKernelSuccess("[SYSTEM] System now under SecureKernelIntegritySubsystem() control.\n");
} else {
Panic("[SYSTEM] Failed to create system service.\n");
}
PrintKernelSuccess("[SYSTEM] SecureKernelIntegritySubsystem() deploying...");
PrintKernelSuccess("[SYSTEM] SecureKernelIntegritySubsystem() deploying...\n");
while (1) {
Yield();
for (int i = 0; i < MAX_PROCESSES; i++) {
Expand Down