Merge pull request #1869 from wwylele/dont-be-lazy

Switch context to the same thread if necessary

1 files changed, 6 insertions, 2 deletions

diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp
index 492c821e3..9dea995f4 100644
--- a/src/core/hle/kernel/thread.cpp
+++ b/src/core/hle/kernel/thread.cpp
@@ -591,8 +591,12 @@ void Reschedule() {
 
     HLE::DoneRescheduling();
 
-    // Don't bother switching to the same thread
-    if (next == cur)
+    // Don't bother switching to the same thread.
+    // But if the thread was waiting on objects, we still need to switch it
+    // to perform PC modification, change state to RUNNING, etc.
+    // This occurs in the case when an object the thread is waiting on immediately wakes up
+    // the current thread before Reschedule() is called.
+    if (next == cur && (next == nullptr || next->waitsynch_waited == false))
         return;
 
     if (cur && next) {