Kernel: Corrections to TimeManager, Scheduler and Mutex.

src/core/hle/kernel/mutex.cpp

@@ -35,8 +35,6 @@ static std::pair<std::shared_ptr<Thread>, u32> GetHighestPriorityMutexWaitingThr
         if (thread->GetMutexWaitAddress() != mutex_addr)
             continue;
 
-        ASSERT(thread->GetStatus() == ThreadStatus::WaitMutex);
-
         ++num_waiters;
         if (highest_priority_thread == nullptr ||
             thread->GetPriority() < highest_priority_thread->GetPriority()) {
@@ -50,6 +48,7 @@ static std::pair<std::shared_ptr<Thread>, u32> GetHighestPriorityMutexWaitingThr
 /// Update the mutex owner field of all threads waiting on the mutex to point to the new owner.
 static void TransferMutexOwnership(VAddr mutex_addr, std::shared_ptr<Thread> current_thread,
                                    std::shared_ptr<Thread> new_owner) {
+    current_thread->RemoveMutexWaiter(new_owner);
     const auto threads = current_thread->GetMutexWaitingThreads();
     for (const auto& thread : threads) {
         if (thread->GetMutexWaitAddress() != mutex_addr)

src/core/hle/kernel/scheduler.cpp

@@ -93,7 +93,7 @@ u32 GlobalScheduler::SelectThreads() {
                 iter++;
                 s32 suggested_core_id = suggested->GetProcessorID();
                 Thread* top_thread =
-                    suggested_core_id > 0 ? top_threads[suggested_core_id] : nullptr;
+                    suggested_core_id >= 0 ? top_threads[suggested_core_id] : nullptr;
                 if (top_thread != suggested) {
                     if (top_thread != nullptr &&
                         top_thread->GetPriority() < THREADPRIO_MAX_CORE_MIGRATION) {

src/core/hle/kernel/time_manager.cpp

@@ -32,8 +32,9 @@ void TimeManager::ScheduleTimeEvent(Handle& event_handle, Thread* timetask, s64
     event_handle = timetask->GetGlobalHandle();
     if (nanoseconds > 0) {
         ASSERT(timetask);
-        const s64 cycles = Core::Timing::nsToCycles(std::chrono::nanoseconds{nanoseconds});
-        system.CoreTiming().ScheduleEvent(cycles, time_manager_event_type, event_handle);
+        ASSERT(timetask->GetStatus() != ThreadStatus::Ready);
+        ASSERT(timetask->GetStatus() != ThreadStatus::WaitMutex);
+        system.CoreTiming().ScheduleEvent(nanoseconds, time_manager_event_type, event_handle);
     } else {
         event_handle = InvalidHandle;
     }