diff --git a/Source/IO/Loop/LSLocalEvent.cpp b/Source/IO/Loop/LSLocalEvent.cpp
index 9811883e..aff8e4db 100644
--- a/Source/IO/Loop/LSLocalEvent.cpp
+++ b/Source/IO/Loop/LSLocalEvent.cpp
@@ -57,6 +57,7 @@ namespace Aurora::IO::Loop
                 }
                 else
                 {
+                    (void)LSSemaphore::OnTrigger(0);
                     return false;
                 }
             }
@@ -69,6 +70,7 @@ namespace Aurora::IO::Loop
                 }
                 else
                 {
+                    (void)LSSemaphore::OnTrigger(0);
                     return false;
                 }
             }
diff --git a/Source/IO/Loop/LSLocalMutex.cpp b/Source/IO/Loop/LSLocalMutex.cpp
index fbcc683b..d6403d5d 100644
--- a/Source/IO/Loop/LSLocalMutex.cpp
+++ b/Source/IO/Loop/LSLocalMutex.cpp
@@ -37,6 +37,7 @@ namespace Aurora::IO::Loop
     {
         if (AuAtomicLoad(&this->uAtomicWord) & kFutexBitWake)
         {
+            (void)LSSemaphore::OnTrigger(0);
             AuAtomicSub(&this->uAtomicWord, kFutexBitWake);
         }
 
diff --git a/Source/IO/Loop/LSLocalSemaphore.cpp b/Source/IO/Loop/LSLocalSemaphore.cpp
index 70d96fd0..ebf68253 100644
--- a/Source/IO/Loop/LSLocalSemaphore.cpp
+++ b/Source/IO/Loop/LSLocalSemaphore.cpp
@@ -37,6 +37,7 @@ namespace Aurora::IO::Loop
     bool LSLocalSemaphore::OnTrigger(AuUInt handle)
     {
         auto bRet = this->TryTakeNoSpin();
+        bool bTriggerLater = !bRet;
 
         while (true)
         {
@@ -51,17 +52,36 @@ namespace Aurora::IO::Loop
             {
                 auto uCount = AuAtomicLoad(&this->uAtomicSemaphore);
 
-                if (uOld - 1 == 0 &&
-                    uCount)
+                if (uOld - 1 == 0)
                 {
-                    AuAtomicAdd(&this->uAtomicKernelSemaphore, uCount);
-                    LSSemaphore::AddMany(uCount);
+                    if (uCount)
+                    {
+                        AuAtomicAdd(&this->uAtomicKernelSemaphore, uCount);
+                        LSSemaphore::AddMany(uCount);
+                    }
+                    else
+                    {
+                        (void)LSSemaphore::OnTrigger(0);
+                        bTriggerLater = false;
+                    }
+                }
+                else if (uOld || !bRet)
+                {
+                    (void)LSSemaphore::OnTrigger(0);
+                    bTriggerLater = false;
                 }
 
                 break;
             }
         }
 
+    #if 0
+        if (bTriggerLater)
+        {
+            (void)LSSemaphore::OnTrigger(0);
+        }
+    #endif
+
         return bRet;
     }